JPH10270120A - Misconnection monitoring device - Google Patents

Abstract

(57) [Problem] To monitor the connection of a cable, a dedicated signal line must be secured in the cable, and information cannot be communicated only with the dedicated signal line. There are problems such as limitations on communication lines, access to the other board, and implementation of a special function (configuration) for access. SOLUTION: In a plurality of substrates, corresponding to connectors,
ID number generating means for generating a D number, multiplexing means for multiplexing the communication information of the apparatus and the ID number output from the ID number generating means and transmitting the multiplexed information to a counterpart board, and converting the received information into communication information and an ID number Separation means for separation and comparison means for comparing ID numbers are provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an erroneous connection monitoring device for monitoring erroneous connection between a plurality of same or different boards when a plurality of boards are connected by a plurality of cables.

[0002]

2. Description of the Related Art FIG. 7 is a block diagram showing a conventional incorrect connection monitoring apparatus disclosed in, for example, Japanese Patent Application Laid-Open No. 4-101372 (hereinafter referred to as Prior Art 1).
Is a logic board connected to each other via cables 7 and 8,
5A and 5B are connectors of the logic board 5 connected to the cables 7 and 8, and 6A and 6B are connectors of the logic board 6 connected to the cables 7 and 8. Numerals 51 and 52 denote storage devices of the logic board 5. The storage devices 51 and 52 store identification numbers unique to the connectors 5A and 5B, respectively. (Bit patterns) 102 and 103 are output. Reference numerals 61 and 62 denote storage devices of the logic board 6,
The storage devices 61, 62 have connectors 6A,
An identification number unique to 6B is stored, and identification number data (bit pattern) 104, 105 of the address indicated by the identification number address 100 is output. The logic board 5
The same bit pattern is stored in the storage device 51 of the logic board 6 and the storage device 61 of the logic board 6.
And the storage device 62 of the logic board 6 store the same bit pattern.

The reference numeral 53 designates identification number data 104 and 105 output from the storage devices 61 and 62 as cable selection signals 10.
1 and the transmitting side identification number 106 is
The selector 54 selects the identification number data 102 and 103 output from the storage devices 51 and 52 according to the cable selection signal 101, and outputs the transmission-side identification number 107 to the comparator 55. 55 is a selector 5
Sender side identification numbers 106 and 107 output from 3, 54
Are compared. Reference numerals 7 and 8 denote cables for connecting the logic boards 5 and 6, reference numerals 75 and 76 denote connectors of the cable 7, and reference numerals 85 and 86 denote connectors of the cable 8.

Next, the operation will be described. When the logic boards 5 and 6 are connected to the cables 7 and 8, the conventional incorrect connection monitoring device compares the identification number data 102 to 105 selected by the cable selection signal 101 to make the cables 7 and 8 normal. Is individually monitored for each of the cables 7 and 8. Hereinafter, a case where the case where the connector 5A of the logic board 5 and the connector 6A of the logic board 6 are connected to the cable 7 is selected as normal will be described.

First, the case where the connector 5A of the logic board 5 and the connector 75 of the cable 7 are connected, and the connector 76 of the cable 7 and the connector 6A of the logic board 6 are connected (a case where they are normally connected) will be described. . When the cable 7 is selected by the cable selection signal 101, the identification number data 1 stored in the storage device 61 of the logical board 6
04 is read out by the identification number address 100 and transmitted to the comparator 55 via the signal line assigned in the cable 7 and the selector 53 in the logic board 5 to the transmission side identification number 1.
06 is output. At the same time, the identification number data 102 stored in the storage device 51 of the logic board 5 is read out by the identification number address 100 and transmitted to the comparator 55 via the selector 54 in the logic board 5 and transmitted to the transmission side identification number 10.
7 is output. The comparator 55 compares the output transmitting side identification numbers 106 and 107 with each other. Since the bit patterns are the same, it is determined that the connection of the cable 7 is normal. Thus, the storage device 5 of the logic boards 5 and 6
By setting the same identification number data (bit pattern) in 1 and 61, respectively, it can be confirmed that the connection of the cable 7 is normal.

Next, the case where the connector 5A of the logic board 5 and the connector 75 of the cable 7 are connected, and the case where the connector 76 of the cable 7 and the connector 6B of the logic board 6 are connected (incorrect connection) will be described. I do. When the cable 7 is selected by the cable selection signal 101, the identification number data 1 stored in the storage device 62 of the logical board 6
05 is read out by the identification number address 100 and transmitted to the comparator 55 via the signal line assigned in the cable 7 and the selector 53 in the logic board 5 to the transmission side identification number 1.
06 is output. At the same time, the identification number data 102 stored in the storage device 51 of the logic board 5 is read out by the identification number address 100 and transmitted to the comparator 55 via the selector 54 in the logic board 5 and transmitted to the transmission side identification number 10.
7 is output. The comparator 55 compares the output transmitting side identification numbers 106 and 107 with each other. In this case, since the bit patterns are not the same, it is determined that the connection of the cable 7 is incorrect. Thus, the logic boards 5 and 6
By setting different identification number data (bit patterns) in the storage devices 51 and 62 of the
Can be confirmed as incorrect connection.

Although the above description has been made of the case where the cable 7 is selected by the cable selection signal 101, the same applies to the case where the cable 8 is selected by the cable selection signal 101.

As a conventional incorrect connection monitoring device, there is one disclosed in, for example, Japanese Patent Application Laid-Open No. 4-106648 (hereinafter referred to as Prior Art 2). This conventional incorrect connection monitoring device has the same basic configuration as the incorrect connection monitoring device disclosed in Japanese Patent Application Laid-Open No. 4-101372, but monitors the incorrect connection with a diagnostic processor connected to a diagnostic bus. Things. Other prior art is disclosed in Japanese Unexamined Patent Publication No. 7-2
No. 0977 and the like.

[0009]

Since the conventional incorrect connection monitoring device (misconnection monitoring device disclosed in Prior Art 1) is configured as described above, it monitors the cable connection (normal connection of the cable). In order to make the judgment, it is necessary to secure a dedicated monitoring pattern signal line in the cable, and information cannot be transmitted only by the dedicated monitoring pattern signal line. In addition to the above, there is a problem that the configuration of the device is also limited (eg, the amount of information to be communicated is limited). In addition, in order to monitor the connection of the cable, it is necessary to access the mating board, and a special function (configuration) for accessing the mating board
Has to be implemented, and there is a problem that the circuit becomes large. Further, control for reading a bit pattern from a storage device in the other substrate is required, and it is necessary to take a timing to compare with a bit pattern read from a storage device in the own substrate, which complicates the device configuration. There were also issues such as.

Further, the erroneous connection monitoring device disclosed in the prior art 2 requires a plurality of signal lines (signal pins) for monitoring, which restricts the original information communication lines, and also provides a combination between communication boards. There were issues such as the number being limited.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is possible to reliably monitor a cable for erroneous connection, disconnection, disconnection, disconnection, and the like in a short period of time, and to perform monitoring within a cable. It is an object of the present invention to provide an erroneous connection monitoring device that does not require a signal line for a monitoring pattern and does not require access to a counterpart board (a similar effect can be obtained with a simple configuration (means)).

[0012]

According to a first aspect of the present invention, there is provided an erroneous connection monitoring apparatus, comprising: an ID number generating means for generating an ID number corresponding to a connector for connecting the cable in a plurality of boards; Multiplexing means for multiplexing the communication information of the apparatus and the ID number output from the ID number generating means and transmitting the multiplexed information to the counterpart board; and separating the information transmitted from the counterpart board and separating it into communication information and the ID number Means and comparison means for comparing the ID number output from the ID number generation means with the ID number output from the separation means.

According to a second aspect of the present invention, there is provided an erroneous connection monitoring apparatus, comprising:
An ID number setting means for setting a number to be changeable is provided.

According to a third aspect of the present invention, there is provided an erroneous connection monitoring apparatus for generating an own ID number corresponding to a connector for connecting a cable in a plurality of boards, and generating a partner ID number. ID number generating means for multiplexing, multiplexing means for multiplexing the communication information of the device and the own ID number output from the own ID number generating means and transmitting the multiplexed information to the other board, and receiving the information transmitted from the other board. It is provided with separating means for separating communication information and ID numbers, and comparing means for comparing the partner ID number output from the partner ID number generating means with the ID number output from the separating means.

According to a fourth aspect of the present invention, there is provided an erroneous connection monitoring apparatus, wherein a self ID number held by a self ID number generation unit and a counterpart I held by a counterpart ID number generation means are provided in a plurality of substrates.
An ID number setting means for setting the D number to be changeable is provided.

An erroneous connection monitoring device according to a fifth aspect of the present invention includes a self-ID number generating means for generating a self-ID number corresponding to a connector for connecting a cable to a plurality of self-boards.
A partner ID number generating means for generating a partner ID number obtained by adding a fixed value to the own ID number, and a first means for multiplexing the communication information of the apparatus and the own ID number output from the own ID number generating means and transmitting the multiplexed information to the partner board Multiplexing means, first demultiplexing means for receiving information transmitted from the counterpart board and separating the communication information and the ID number of the counterpart board, and a counterpart ID number output from the counterpart ID number generating means. A comparison means for comparing the ID numbers output from the separation means, and a connector for connecting a cable to a plurality of mating substrates,
Second demultiplexing means for demultiplexing the information multiplexed and transmitted by the first multiplexing means into communication information and a connection ID number;
ID number adding means for outputting a self ID number obtained by adding a fixed value to the ID number output from the second demultiplexing means, communication information of the apparatus and self ID outputted from the ID number adding means
Second multiplexing means for transmitting the information obtained by multiplexing the numbers to the own board is provided.

According to a sixth aspect of the present invention, there is provided an erroneous connection monitoring apparatus which receives multiplexed information transmitted from a counterpart board corresponding to a connector for connecting a cable in a plurality of boards, It is provided with PU separation means for separating into number and cable disconnection information, and cable disconnection monitoring means for monitoring cable disconnection based on the cable disconnection information output from the PU separation means.

The erroneous connection monitoring device according to the invention according to claim 7 is characterized in that the PU separation unit means that the own ID number or the partner I
An undefined ID number is defined as the D number.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a configuration diagram showing an erroneous connection monitoring device according to Embodiment 1 of the present invention.
Are logic boards (boards) that communicate with each other, 1A and 1B are connectors of the logic board 1, and 2A and 2B are connectors of the logic board 2. Reference numerals 3 and 4 denote cables connecting the logical boards 1 and 2, respectively, reference numerals 31 and 32 denote connectors at both ends of the cable 3, reference numerals 41 and 42 denote connectors at both ends of the cable 4,
These connectors 31, 32, 41, and 42 are connected to connectors 1A, 1B, 2A, and 2B of the logic boards 1 and 2, respectively.

In the logic board 1, the communication information 11a, 11b includes the communication information 11a, 11b and the connection ID number generator 13A,
Connection ID number (ID number) 14a, 1 where 13B occurred
4b, and multiplexed information 15a, 15b
A transmission information multiplexing section (multiplexing means) for outputting
12B receives the multiplexed information 25a, 25b and transmits the received information 25a, 25b to the communication information 12a, 12b.
b and connection ID numbers (ID numbers) 13a and 13b, the received information separation units (separation means) 13A and 13B generate preset connection ID numbers 14a and 14b,
Transmission information multiplexing units 11A and 11B and comparators 14A and 1
4B is a connection ID number generating unit (ID number generating means) for outputting to 4B. 14A and 14B are reception information separation units 12
Connection ID numbers 13a and 13b output from A and 12B
It is a comparator (comparing means) for comparing the connection ID numbers 14a and 14b output from the connection ID number generation units 13A and 13B.

In the logic board 2, reference numerals 21A and 21B denote communication information 21a and 21b and connection ID number generators 23A and 23A.
Connection ID number (ID number) 24a, 2 where 23B occurred
4b, and multiplexed information 25a, 25b
A transmission information multiplexing unit (multiplexing means) that outputs
22B receives the multiplexed information 15a, 15b, and transmits the received information 15a, 15b to the communication information 22a, 22b.
b and a received information separating section (separating means, second separating means) for separating the received information into connection ID numbers (ID numbers) 23a and 23b;
4a and 24b, and the transmission information multiplexing units 21A and 21A
B and a connection ID number generation unit (ID number generation means) for outputting to the comparators 24A and 24B. 24A and 24B are connection IDs output from the reception information separation units 22A and 22B.
Numbers 23a and 23b and connection ID number generating units 23A and 23
This is a comparator (comparing means) for comparing the connection ID numbers 24a and 24b output from B. The configuration of each unit in the logic board 1 and the configuration of each unit in the logic board 2 are the same.

Next, the operation will be described. Here, in order to realize the communication function of the device constituted by the logic board 1 and the logic board 2, in order for the logic board 1 and the logic board 2 to normally communicate with each other, the connector 1 </ b> A of the logic board 1 and the logic It is assumed that the connector 2A of the board 2 needs to be connected, and the connector 1B of the logic board 1 needs to be connected to the connector 2B of the logic board 2.

First, the connector 1A of the logic board 1 and the connector 2A of the logic board 2 are connected via the cable 3 (the connector 1A of the logic board 1 and the connector 3A of the cable 3).
1 is connected, the connector 2A of the logic board 2 and the cable 3
Connector 32 is connected), and the logical board 1 and the logical board 2 communicate with each other. The connection ID number generating units 13A and 23A are connected to the connectors 1A and 2A.
A unique connection ID number 14a, 24a which is fixedly set in advance and has a connection ID number -1 corresponding to A is held. The connection ID number generators 13B and 23B are connected to the connectors 1B and 2B, respectively, and have a unique connection ID number 14b, 24 fixedly set in advance as a connection ID number-2.
b.

(1) Communication from the logic board 1 to the logic board 2 The communication information 11a transmitted from the logic board 1 includes a connection ID.
The connection ID number 14a output from the number generation unit 13A is multiplexed with the transmission information multiplexing unit 11A and transmitted as multiplexed information 15a. This information 15a is transmitted to the received information separating unit 2 of the logic board 2 via the connector 1A of the logic board 1, the cable 3 and the connector 2A of the logic board 2.
Received at 2A. This information 15a is transmitted to the communication information 22a and the connection ID number 2 by the reception information separation unit 22A.
3a, and the connection ID number 23a is output to the comparator 24A.

In the logic board 2, the connection ID number 23a extracted (separated) from the information 15a and the connection ID number 24a output from the connection ID number generation unit 23A in the logic board 2 are compared with the comparator 24A. Compare with. In this case, since the connection ID numbers 23a and 24a are the same as the connection ID number-1, the comparator 24A outputs the connection ID number 2
3a and 24a are coincident, and it is determined that the connection of the cable 3 is normal.

(2) Communication from the logic board 2 to the logic board 1 Similarly, the communication information 21a transmitted from the logic board 2 is
The connection ID number 24a output from the connection ID number generation unit 23A is multiplexed with the transmission information multiplexing unit 21A and transmitted as multiplexed information 25a. This information 25a
Is received by the reception information separating unit 12A of the logic board 1 via the connector 2A of the logic board 2, the cable 3 and the connector 1A of the logic board 1. And this information 25a
Is separated into the communication information 12a and the connection ID number 13a by the reception information separation unit 12A, and the connection ID number 13a is output to the comparator 14A.

In the logic board 1, the connection ID number 13a extracted (separated) from the information 25a and the connection ID number 14a output from the connection ID number generation unit 13A in the logic board 1 are compared with the comparator 14A. Compare with. In this case, the connection ID numbers 13a and 14a are both connection IDs.
Since the numbers are the same, the comparator 14A indicates that the connection ID numbers 13a and 14a match, and it is determined that the connection of the cable 3 is normal.

Next, the connector 1A of the logic board 1 and the connector 2B of the logic board 2 are erroneously connected via the cable 3 (the connector 1A of the logic board 1 and the connector 31 of the cable 3 are connected, and 2 is connected to the connector 32 of the cable 3), and the logical board 1 and the logical board 2 communicate with each other.

(1) Communication from the logic board 1 to the logic board 2 The communication information 11a transmitted from the logic board 1 includes a connection ID.
The connection ID number 14a output from the number generation unit 13A is multiplexed with the transmission information multiplexing unit 11A, and the multiplexed information 15a is supplied to the connector 1A of the logical board 1, the cable 3 and the connector 2B of the logical board 2. Is received by the reception information separating unit 22B of the logic board 2 via This information 1
5a is separated into the communication information 22b and the connection ID number 23b by the reception information separation unit 22B, and the connection ID number 23b is output to the comparator 24B.

In the logic board 2, the connection ID number 23b extracted (separated) from the information 15a and the connection ID number 24b output from the connection ID number generation unit 23B in the logic board 2 are compared with the comparator 24B. Compare with. In this case, the connection ID number 23b is the connection ID number-1, and
Since the connection ID number 24b is the connection ID number-2, which is different, the comparator 24B indicates that the connection ID numbers 23b and 24b do not match, and it is determined that the connection of the cable 3 is abnormal (wrong connection).

(2) Communication from the logic board 2 to the logic board 1 Similarly, the communication information 21b transmitted from the logic board 2 is
The connection ID number 24b output from the connection ID number generation unit 23B is multiplexed with the transmission information multiplexing unit 21B, and the multiplexed information 25b is supplied to the connector 2B of the logic board 2, the cable 3 and the connector of the logic board 1. The received information is received by the received information demultiplexing unit 12A of the logic board 1 via 1A. This information 25b is transmitted to the communication information 12 by the reception information separation unit 12A.
a and the connection ID number 13a.
a is output to the comparator 14A.

In the logic board 1, the connection ID number 13a extracted (separated) from the information 25b and the connection ID number 14a output from the connection ID number generation unit 13A in the logic board 1 are compared with the comparator 14A. Compare with. In this case, the connection ID number 13a is the connection ID number-2,
Since the connection ID number 14a is the connection ID number -1, which is different, the comparator 14A indicates that the connection ID numbers 13a and 14a do not match, and it is determined that the connection of the cable 3 is abnormal (wrong connection).

In the above, the case where the normality of the cable connection between the connector 1A of the logic board 1 and the connector 2A of the logic board 2 is monitored has been described.
The same applies to the case where the normality of the cable connection between the connector B and the connector 2B of the logic board 2 is monitored.

As described above, according to the first embodiment, the communication information (11a, 11b, 21a, 21b) includes connection ID numbers (14a, 14b, 24a, 24a,
24b), and compares the connection ID number of the own board and the connection ID number of the other board with comparators (14A, 14B, 24A,
24B), the cable (3, 4)
The connection normality (misconnection) is monitored, so there is no need to access the communication partner board and cables (3, 4)
Since a dedicated signal line is not required inside, monitoring of erroneous connection of a cable or the like can be reliably performed in a short time with a simple configuration (means).

Embodiment 2 FIG. 2 is a configuration diagram showing an erroneous connection monitoring device according to Embodiment 2 of the present invention. In FIG. 2, the same or corresponding parts as those in FIG. 1 are denoted by the same reference numerals, and redundant description will be omitted. In the figure, 13
A1 and 13B1 generate connection ID numbers 14a and 14b, and transmit information multiplexing units 11A and 11B and a comparator 14A.
A, 14B, connection ID number generators (ID number generation means), 23A1, 23B1 are connection ID numbers 24a,
A connection ID number generation unit (ID number generation means) that generates 24b and outputs it to the transmission information multiplexing units 21A and 21B and the comparators 24A and 24B. 15AB is a CPU (ID number setting means) provided on the logic board 1 for setting the connection ID numbers 14a and 14b held in the connection ID number generation units 13A1 and 13B1 so as to be changeable. 25AB is provided on the logic board 2. Connection ID number generation units 23A1, 23A
The CPU 15AB, 25AB is a CPU (ID number setting means) that sets the connection ID numbers 24a, 24b held in B1 so as to be changeable. The CPUs 15AB, 25AB convert the set connection ID number information 16ab, 26ab into the connection ID number generation unit 13A. ,
13B, 23A and 23B, the connection I
The connection ID numbers 14a, 14b, 24a, and 24b held in the D number generation units 13A, 13B, 23A, and 23B are changed (set).

Next, the operation will be described. The basic operation of the misconnection monitoring device according to the second embodiment is the same as the operation of the misconnection monitoring device according to the first embodiment, and a description thereof will not be repeated. I do.

In the first embodiment, the connection ID numbers 14a, 14b, 24a, and 24b output from the connection ID number generation units 13A1, 13B1, 23A1, and 23B1 in order to reduce the circuit scale and the software (S / W) scale. Are fixed values corresponding to the connectors 1A, 1B, 2A, 2B. These connection ID numbers 14a, 14b, 24a,
24b is determined by the slot position where the logic board 1 and the logic board 2 are mounted, the connector number, and the like.

However, if the connection ID numbers 14a, 14b, 24a, and 24b are fixed values as in the first embodiment, only fixed connections are supported, so restrictions are imposed on operation or expansion. May receive. That is, when it is necessary to change the connector according to the design of the device (necessary) or when adding a board, if the connection ID number is fixed corresponding to the connector of the logical board, the connector is designed in accordance with the connector. And so on.

Therefore, in the second embodiment, the connection I
The connection ID numbers 14a, 14b, 24a, and 24b held in the connection ID number generation units 13A1, 13B1, 23A1, and 23B1 are changed to CPs so that the D number can be changed to an arbitrary value.
Connection ID number information 16a from U15AB, 25AB
b, 26ab can be set by software. Therefore, the connection ID number information 16a
b, connection I set by software based on 26ab
D number generators 13A1, 13B1, 23A1, 23B1
The connection ID numbers 14a, 14b, 24a, and 24b are multiplexed with the communication information 11a and 21a in the same manner as in the first embodiment, and a comparison determination is performed. At this time, connection ID number information 1
6ab and 26ab are connection I values corresponding to the connectors 1A, 1B, 2A and 2B to be connected by the logic boards 1 and 2, respectively.
D number generation units 13A1, 13B1, 23B1, 23B1
(For example, in order to make the connector 1A correspond to the connector 1B, the connection ID number generation section 13A1 is provided with the connection ID number -1 and the connection ID number generation section 23A1 is provided with the same connection ID number -1. Then, similarly to the first embodiment, the comparators 14A, 14B, 24A, 24
When B determines that the connection ID numbers are the same, it can be determined that the connection is normal, and when it is determined that the connection ID numbers are different, it is determined that the connection is erroneous.

As described above, according to the second embodiment, the connection ID number generators (13A1, 13B1, 23A1, and 23A) can change the connection ID number to an arbitrary value.
B1) holds connection ID numbers (14a, 14b, 24)
a, 24b) can be set by software based on the connection ID number information (16ab, 26ab) from the CPU (15AB, 25AB), so that the device can be flexibly set without being restricted by the mounting slot, connector number, etc. of the board. The configuration can be designed (realized).

Embodiment 3 FIG. 3 is a configuration diagram showing an erroneous connection monitoring device according to Embodiment 3 of the present invention. Note that, in FIG. 3, the same or corresponding portions as in FIG. 1 are denoted by the same reference numerals, and redundant description will be omitted. In the figure, 13
A2 and 13B2 are provided in the logic board 1 and generate their own ID numbers 14a1 and 14b1 and output them to the transmission information multiplexing units 11A and 11B (own ID number generating means). It is. 23A2 and 23B2 generate preset own ID numbers 24a1 and 24b1 provided in the logic board 2 and send the information to the transmission information multiplexing unit 21.
A, an own ID number generating unit (own ID number generating means) that outputs the data to A and 21B. 13A3, 13B3 are preset partner ID numbers 14a2, 1 provided in the logic board 1;
4A2, and outputs to the comparators 14A and 14B.
23B3 generates preset partner ID numbers 24a2 and 24b2 provided in the logic board 2,
A, 24B is a partner ID number generating unit (a partner ID number generating unit).

Next, the operation will be described. As in the first embodiment, the connector 1A of the logic board 1 and the logic board 2
Connector 2A is connected to the connector 1B of the logic board 1.
And the case where the connector 2B of the logic board 2 is connected to
Assume that the connection is normal.

First, the case where the connector 1A of the logic board 1 and the connector 2A of the logic board 2 are connected via the cable 3 and the logic board 1 and the logic board 2 communicate with each other will be described. Own ID number generating section 13A2, 2
3A2 has its own ID number corresponding to the connectors 1A and 2A.
Unique self-ID number 1 fixedly set in advance to 1
4a1 and 24a1. Own ID number generation unit 13B
2, 23B2 have their own IDs corresponding to connectors 1B, 2B.
A unique self-ID that is fixedly set in advance as number-2
Numbers 14b1 and 24b1 are retained. The partner ID number generating units 13A3 and 23A3 hold unique partner ID numbers 14a2 and 24a2, which are fixedly set in advance, and correspond to the connectors 1A and 2A. The partner ID number generating units 13B3 and 23B3 correspond to the connectors 1B and 2B, respectively, and have a unique partner ID number 14b2 and 24, which are fixedly set in advance and are called partner ID numbers-2.
b2.

(1) Communication from the logic board 1 to the logic board 2 The communication information 11a transmitted from the logic board 1 is transmitted to the own ID number 14a1 output from the own ID number generating unit 13A2 and the transmission information multiplexing unit 11A. Multiplexed and transmitted as multiplexed information 15a1. This information 15a1
Connector 1A of logical board 1, cable 3 and logical board 2
Is received by the received information separating unit 22A of the logical board 2 via the connector 2A. And this information 15a1 is
Communication information 22a and connection ID in reception information separation unit 22A
Number (ID number) 23a1 and the connection ID number 2
3a1 is output to the comparator 24A.

The connection ID number 23a1 extracted (separated) from the information 15a1 and the other party I in the logical board 2
The partner ID number 24 output from the D number generation unit 23A3
a2 is compared by the comparator 24A. In this case, connection I
Both D number 23a1 and partner ID number 24a2 are I
Since the D number is identical to -1, the comparator 24A indicates that the connection ID number 23a1 matches the partner ID number 24a2, and it is determined that the connection of the cable 3 is normal.

(2) Communication from the logic board 2 to the logic board 1 Similarly, the communication information 21a transmitted from the logic board 2 is
Own ID number 2 output from own ID number generation unit 23A2
4a1 is multiplexed with the transmission information multiplexing unit 21A and transmitted as multiplexed information 25a1. This information 25
a1 is received by the reception information separating unit 12A of the logic board 1 via the connector 2A of the logic board 2, the cable 3, and the connector 1A of the logic board 1. And this information 25
a1 is separated into the communication information 12a and the connection ID number (ID number) 13a1 by the reception information separation unit 12A, and the connection I
The D number 13a1 is output to the comparator 14A.

The connection ID number 13a1 extracted (separated) from the information 25a1 and the partner I in the logical board 1
Partner ID number 14 output from D number generating section 13A3
a2 is compared by the comparator 14A. In this case, connection I
D number 13a1 and partner ID number 14a2 are both I
Since the D number is the same as -1, the comparator 14A indicates that the connection ID number 13a1 matches the partner ID number 14a2, and it is determined that the connection of the cable 3 is normal.

Next, a case where the connector 1A of the logic board 1 and the connector 2B of the logic board 2 are erroneously connected via the cable 3 and the logic board 1 and the logic board 2 communicate with each other will be described. . (1) Communication from the logic board 1 to the logic board 2 The communication information 11a transmitted from the logic board 1 is multiplexed with the own ID number 14a1 output from the own ID number generation unit 13A2 by the transmission information multiplexing unit 11A. The multiplexed information 15a1 is received by the reception information separation unit 22B of the logic board 2 via the connector 1A of the logic board 1, the cable 3, and the connector 2B of the logic board 2. This information 15a1 is transmitted to the communication information 22 by the reception information separation unit 22B.
b and the connection ID number (ID number) 23b1, and the connection ID number 23b1 is output to the comparator 24B.

The connection ID number 23b1 extracted (separated) from this information 15a1 and the partner I in the logical board 2
The partner ID number 24 output from the D number generation unit 23B3
b2 is compared with the comparator 24B. In this case, connection I
D number 23b1 is ID number-1 and partner ID number 2
4b2 is the ID number-2, which is different,
B indicates a mismatch between the connection ID number 23b1 and the partner ID number 24b2, and it is determined that the connection of the cable 3 is abnormal (wrong connection).

(2) Communication from the logic board 2 to the logic board 1 Similarly, the communication information 21b transmitted from the logic board 2 is
Own ID number 2 output from own ID number generating section 23B2
4b1 is multiplexed with the transmission information multiplexing unit 21B, and the multiplexed information 25b1 is
The received information is received by the reception information separating unit 12A of the logic board 1 via the cable 3 and the connector 1A of the logic board 1. The information 25b1 is separated into the communication information 12a and the connection ID number (ID number) 13a1 by the reception information separation unit 12A, and the connection ID number 13a1 is output to the comparator 14A.

The connection ID number 13a1 extracted (separated) from the information 25b1 and the partner I in the logical board 1
Partner ID number 14 output from D number generating section 13A3
a2 is compared by the comparator 14A. In this case, connection I
D number 13a1 is ID number-2 and partner ID number 1
4a2 is the ID number -1 which is different, so that the comparator 14a2
A indicates a mismatch between the connection ID number 13a1 and the partner ID number 14a2, and it is determined that the connection of the cable 3 is abnormal (wrong connection).

As described above, according to the third embodiment, the own ID number generating units (13A2, 23A2)
The own ID numbers (14a1, 24a1) of the number-1 are held, and the own ID numbers (14b1, 24b1) of the own ID number-2 are stored in the own ID number generating units (13B2, 23B2).
While the other party ID number generating section (13A3, 2
3A3) has the partner ID number -1 (14
a2, 24a2) and the other party ID number generation unit (1
3B3, 23B3) is the partner ID number-2
The numbers (14b2, 24b2) are held and the comparator (1
4A, 14B, 24A, 24B), and the
Since the cable connection is monitored by comparing the D number with the partner ID number of the own board, detailed information (information on the board at the wrong connection destination) at the time of incorrect connection of the cable can be easily determined. It is also possible to cope with a configuration of an apparatus for performing the many-to-many (1: many) board communication.

Embodiment 4 FIG. 4 is a configuration diagram showing an erroneous connection monitoring device according to Embodiment 4 of the present invention. In FIG. 4, the same or corresponding parts as those in FIGS. 1 to 3 are denoted by the same reference numerals, and redundant description will be omitted. In the figure, 13A4 and 13B4 are own ID numbers 14a1 and 14b.
1, own ID number generating sections (own ID number generating means), 23A4 and 23B4 are own ID numbers 24a1, 24
The own ID number generating unit (own ID number generating means) that generates b1. 13A5 and 13B5 are partner ID numbers 14a
ID number generating section (counter ID for generating 2, 14b2)
Number generating means), 23A5 and 23B5 are partner ID numbers 2
This is a partner ID number generating unit (partner ID number generating means) that generates 4a2 and 24b2.

Reference numeral 15AB1 denotes the own ID number 14a held in the own ID number generators 13A4 and 13B4 and the other party ID number generators 13A5 and 13B5 provided on the logical board 1.
CPU (ID number setting means) capable of setting changeable ID numbers 1 and 14b1 and partner ID numbers 14a2 and 14b2, 25
AB1 is the own ID number generation unit 2 provided on the logic board 2.
3A4, 23B4 and partner ID number generating units 23A5, 2
This is a CPU (ID number setting means) capable of setting the own ID numbers 24a1, 24b1 and the partner ID numbers 24a2, 24b2 held in the 3B5 so as to be changeable.
AB1, 25AB1 are the set own ID number information 16
ab1, 26ab1 are assigned to the own ID number generation units 13A4, 13
B4, 23A4, 23B4, and the set partner ID number information 16ab2, 26ab2 to the partner ID number generators 13A5, 13B5, 23A5, 23B5, thereby generating their own ID number generators 13A4, 13B.
4,23A4,23B4 own ID number 14a
1,14b1,24a1,24b1 are changed (set),
And partner ID number generation units 13A5, 13B5, 23A
Connection ID numbers 14a2,14 held in 5,23B5
b2, 24a2, and 24b2 are changed (set).

Next, the operation will be described. The basic operation of the misconnection monitoring device according to the fourth embodiment is the same as the operation of the misconnection monitoring device according to the third embodiment. I do.

In the third embodiment, in order to reduce the circuit scale and the software (S / W) scale, the own ID numbers 14a1, 14b1, 24a1, 24b output from the own ID number generators 13A4, 13B4, 23A4, 23B4.
1 is a fixed value corresponding to each of the connectors 1A, 1B, 2A, and 2B, and these own ID numbers 14a1 and 14b
1, 24a1, 24b1 are the logic board 1 and the logic board 2
Is determined by the slot position, connector number, etc. in which the ID number is mounted.
The partner ID numbers 14a2, 14b2, 24a2, and 24b2 output from 5,13B5, 23A5, and 23B5 are fixed values corresponding to connectors 1A, 1B, 2A, and 2B, respectively.
4a2 and 24b2 are also determined by the slot position where the logic board 1 and the logic board 2 are mounted, the connector number, and the like.

However, as in the third embodiment, the own ID numbers 14a1, 14b1, 24a1, 24b
1 and partner ID numbers 14a2, 14b2, 24a2, 2
If 4b2 is a fixed value, it corresponds only to a fixed connection, so that it may be restricted in operation or at the time of expansion.

Therefore, in the fourth embodiment, the self ID
The own ID number generating unit 13A so that the numbers 14a1, 14b1, 24a1, 24b1 and the partner ID numbers 14a2, 14b2, 24a2, 24b2 can be changed to arbitrary values.
4, 13B4, 23A4, 23B4 and own ID numbers 14a1, 14b1, 24a1, 24b1 held by the partner ID number generating units 13A5, 13B5, 23A5, 23B5.
And partner ID numbers 14a2, 14b2, 24a2, 24
b2 is the own ID number information 16ab1, 26ab1 and the partner ID number information 16 from the CPUs 15AB1, 25AB1.
ab2 and 26ab2 can be set by software. Therefore, the own ID number information 16
ab1, 26ab1 and partner ID number information 16ab2
ID number 14a1, 14b1, 24a1, 24b1 and partner I set by software based on 26ab2
The D numbers 14a2, 14b2, 24a2, and 24b2 are multiplexed with the communication information in the same manner as in the third embodiment, and a comparison is made.

At this time, the own ID number information 16ab1, 26ab
ab1 and partner ID number information 16ab2, 26ab2
Are connectors 1A, 1 to be connected by the logic boards 1, 2.
The values corresponding to B, 2A, and 2B are assigned to the own ID number generation unit 13A.
4, 13B4, 23A4, 23B4 and the other party ID number generating units 13A5, 13B5, 23A5, 23B5. If the comparators 14A, 14B, 24A, 24B determine that the ID numbers are the same, they can be connected normally, and if they are different, it can be determined that they are erroneously connected.

As described above, according to the fourth embodiment, the ID number generating section (the own ID number generating section and the other party ID number generating section) can change the own ID number and the other party ID number to arbitrary values. ) Is assigned to the CPU (15A
B1, 25AB1) from the ID number information (16ab1,
16ab2, 26ab1, 26ab2) can be set by software, so that the device configuration can be designed (realized) flexibly without being restricted by the mounting slot, connector number, etc. of the board, and the mounting slot, connector The device configuration can be designed (realized) flexibly without being restricted by the numbers and the like.

Embodiment 5 FIG. 5 is a configuration diagram showing an erroneous connection monitoring device according to Embodiment 5 of the present invention. In FIG. 5, the same or corresponding components as those shown in FIGS. 1 to 4 are denoted by the same reference numerals, and the description thereof will not be repeated. In the figure, reference numerals 13A6 and 13B6 denote preset partner ID numbers 14 provided in the logic board 1.
a3, 14b3 (a self ID number 14a1, 14b1 to which a fixed value (for example, a mounting slot of a counterpart board, etc.) is added) is generated and output to the comparators 14A, 14B. Generating means). 26
A and 26B are reception information separation units (second separation means) 2
The connection ID numbers (ID
ID numbers 24a3, 24b, and 23a1 and 23b1 with fixed values (for example, mounting slots of the mating board).
b3, an ID number adding unit (ID number adding unit) that outputs the own ID numbers 24a3 and 24b3 to the transmission information multiplexing units (second multiplexing units) 21A and 21B.

Next, the operation will be described. Also in the fifth embodiment, the connector 1A of the logic board 1 and the connector 2A of the logic board 2 are connected, and the connector 1A of the logic board 1 is connected.
The case where B and the connector 2B of the logic board 2 are connected is regarded as a normal connection.

First, the case where the connector 1A of the logic board 1 and the connector 2A of the logic board 2 are connected via the cable 3 and the logic board 1 and the logic board 2 communicate with each other will be described. The own ID number generation unit 13A2
It has a unique self-ID number 14a1, which is fixedly set in advance, and is self-ID number-1 corresponding to the connector 1A. The own ID number generation unit 13B2 has a unique own ID number 14b1 which is fixedly set in advance and is own ID number-2 corresponding to the connector 1B. Further, the partner ID number generation unit 13A6 provides a partner ID number corresponding to the connector 2A.
Unique counterpart I previously fixedly set as number-1
D number 14a3 (where the partner ID number 14a3 is
D number 14a1 has a fixed value (for example, a value obtained by adding a mounting slot of a counterpart board). Opponent I
The D number generation unit 13B6 is a unique fixed ID number 14b3 (again, the specified ID number 14b3) corresponding to the connector 2B.
Has a fixed value (for example, a mounting slot of a counterpart board) added to its own ID number 14b1.

(1) Communication from Logic Board 1 to Logic Board 2 The communication information 11a transmitted from the logic board 1 includes the own ID number 14a1 output from the own ID number generating unit 13A2 and the transmission information multiplexing unit (the (1 multiplexing means) is multiplexed by 11A and transmitted as multiplexed information 15a1.
The information 15a1 is received by the reception information separating unit 22A of the logic board 2 via the connector 1A of the logic board 1, the cable 3, and the connector 2A of the logic board 2. And
This information 15a1 is separated into the communication information 22a and the connection ID number 23a1 by the reception information separation unit 22A,
The D number 23a1 is output to the ID number adding unit 26A.

The connection ID number 23a1 extracted (separated) from this information 15a1
A fixed value set in advance at A is added, and own ID number 2
4a3 is output to the transmission information multiplexing unit 21A.
The own ID number 24a3 is used by the reception information multiplexing unit 2
At 1A, it is multiplexed with the communication information 21a and output as information 25a2.

(2) Communication from the logic board 2 to the logic board 1 This information 25a2 is transmitted through the connector 2A and the cable 3 of the logic board 2 and the connector 1A of the logic board 1 to the received information separating section of the logic board 1. (First separating means) Received by 12A. This information 25a1 is transmitted to the communication information 12a and the connection ID number (ID
No. 13a2, and the connection ID number 13a2 is output to the comparator 14A.

The connection ID number 13a2 extracted (separated) from the information 25a2 and the partner I in the logical board 1
Partner ID number 14 output from D number generating section 13A6
a3 is compared with the comparator 14A. In this case, connection I
Since the D number 13a2 and the partner ID number 14a3 are the same as the self ID number -1 plus the fixed value -1 and are the same, the comparator 14A indicates that the connection ID number 13a2 matches the partner ID number 14a3. , The connection of the cable 3 is determined to be normal.

The operation in the case of the incorrect connection (the case where the connector 1A of the logic board 1 and the connector 2B of the logic board 2 are mistakenly connected via the cable 3) is similar to that of the above embodiment. Therefore, a duplicate description will be omitted.

As described above, according to the fifth embodiment, the connection ID numbers (23a1, 23b1) separated from the information (15a1, 15b1) are set in advance by the ID number adding units (26A, 26B). The received fixed values are added and transmitted as the own ID numbers (24a3, 24b3), and the own ID numbers (24a3, 24b3) are used as connection IDs by the reception information separating units (12A, 12B) of the logical board 1.
The connection ID numbers (13a2, 13b2) and the connection ID numbers (13a2, 13b2) and the partner ID number generation unit (13
A6, 13B6) is compared with the comparators (14A, 14B) to judge the normality of the cable connection, so that erroneous connection can be reliably monitored in a short time with a simpler configuration (means). Can be.

Embodiment 6 FIG. FIG. 6 is a configuration diagram showing an erroneous connection monitoring device according to Embodiment 6 of the present invention. In FIG. 6, the same or corresponding components as those shown in FIGS. 1 to 5 are denoted by the same reference numerals, and redundant description will be omitted. In the figure, 12A1 and 12B1 are logic boards 1
And a reception information demultiplexing unit (PU demultiplexing unit) that terminates the reception signal line by pull-up. The reception information demultiplexing units 12A1 and 12B1 are provided with the multiplexed information 25a.
3, 25b3, and the received information 25a3, 2
5b3 as communication information 12a, 12b, connection ID number 13a
1, 13b1 and cable disconnection information bits (cable disconnection information) 17a, 17b. 22A1, 22B
Reference numeral 1 denotes a reception information separation unit (PU separation means) provided on the logic board 2 and having a pull-up termination of a reception signal line;
The reception information demultiplexing units 22A1 and 22B1 receive the multiplexed information 15a3 and 15b3, and transmit the received information 15a3 and 15b3 to the communication information 22a and 22b, the connection ID numbers 23a1 and 23b1, and the cable disconnection information bit 27a. 27b. 17A and 17B are cable disconnection monitoring units (cable disconnection monitoring means) for monitoring cable disconnection based on the cable disconnection information bits 17a and 17b output from the reception information separation units 12A1 and 12B1, and 27A and 27B are reception information separation units. Parts 22A1, 2A2
A cable disconnection monitoring unit (cable disconnection monitoring unit) that monitors cable disconnection based on cable disconnection information bits (cable disconnection information) 27a and 27b output from 2B1.

Next, the operation will be described. This embodiment 6 is different from the above-described embodiment in that cable disconnection information bits 17a, 17b, 27a, 27
It is also to monitor for cable disconnection by adding b. The operation of the erroneous connection monitoring device according to the sixth embodiment will be described by taking as an example the case where the monitoring of the cable disconnection according to the sixth embodiment is applied to the operation of the erroneous connection monitoring device according to the third embodiment. The basic operation of the erroneous connection monitoring device according to the sixth embodiment is the same as the operation of the erroneous connection monitoring device according to the third embodiment. Will be described.

As in the third embodiment, the connector 1A of the logic board 1 and the connector 2A of the logic board 2 are connected.
Connector 1B of logic board 1 and connector 2B of logic board 2
Is a normal connection when is connected.

First, the case where the connector 1A of the logic board 1 and the connector 2A of the logic board 2 are connected via the cable 3 and the logic board 1 and the logic board 2 communicate with each other will be described. As in the third embodiment, the own ID number generating units 13A2 and 23A2
Own ID number 14a called own ID number -1 corresponding to 2A
Own ID number generating units 13B2, 2
3B2 has its own ID number corresponding to the connectors 1B and 2B.
2 own ID numbers 14b1 and 24b1. Further, the partner ID number generating units 13A3 and 23A3 correspond to the connectors 1A and 2A, and correspond to the partner ID number -1.
D ID numbers 14a2 and 24a2, and the partner ID number generating units 13B3 and 23B3 correspond to the connectors 1B and 2B, respectively, and correspond to the partner ID numbers 14b2 and 24b of the partner ID number-2.
b2.

(1) Communication from Logical Board 1 to Logical Board 2 The communication information 11a transmitted from the logical board 1 is transmitted to the own ID number 14a1 output from the own ID number generating unit 13A2 and the transmission information multiplexing unit 11A. Multiplexed by the transmission information multiplexing unit 11A, and the position of the cable disconnection information bit (27a) is set to the ground level.
a3 is transmitted. The information 15a3 includes the connector 1A of the logical board 1, the cable 3 and the connector 2 of the logical board 2.
A, the received information is received by the received information separating unit 22A1 of the logic board 2 and the communication information 22 is received by the received information separating unit 22A1.
a, a connection ID number 23a1 and a cable disconnection information bit 27a.
A, the cable disconnection information bit 27a is output to the cable disconnection monitoring unit 27A.

As in the case of the third embodiment, information 1
Connection ID number 2 extracted (separated) from 5a2
By comparing 3a1 with the partner ID number 24a2,
In addition to monitoring erroneous connection of the cable 3, in the sixth embodiment, monitoring of cable disconnection is also performed by using a cable disconnection information bit 27 a extracted from the information 15 a 3. That is, the cable disconnection monitoring unit 27A
If the output cable disconnection information bit 27a is at the "L" level, it is determined that the cable is normal (no cable disconnection), and if the output cable disconnection information bit 27a is at the "H" level, it is determined that the cable is abnormal (the cable disconnection). Incidentally, the case of the communication from the logic board 2 to the logic board 1 (2) is the same, and the description is omitted. Also, as for the operation in the case of an incorrect connection, the same operation as in the third embodiment is performed, and therefore, the duplicate description will be omitted.

As described above, according to the sixth embodiment, the cable disconnection information bit (17
a, 17b, 27a, 27b) are added to monitor the cable disconnection, so that not only the erroneous connection of the cable (3, 4) but also the cable (3, 4) is monitored. Therefore, the workability of monitoring the cable connection can be improved.

In the sixth embodiment, the case where the cable disconnection monitoring of the sixth embodiment is applied to the erroneous connection monitoring device of the third embodiment has been described as an example. 2, 3, and 5 can also be applied.

Embodiment 7 FIG. In the sixth embodiment, the cable disconnection information bits 17a, 17b, 27a, 27b
Was provided at a specific position to monitor for cable disconnection, but the ID number and partner ID number are all "H".
If the pattern is defined so that there is no pattern, it is possible to determine that the cable is disconnected when all are "H" by monitoring the ID number.

[0079]

As described above, according to the first aspect of the present invention, ID number generating means for generating an ID number corresponding to a connector for connecting the cable in a plurality of substrates,
Device communication information and ID output from ID number generating means
Multiplexing means for multiplexing the number and transmitting the multiplexed number to the counterpart board; separating means for receiving the information transmitted from the counterpart board and separating it into communication information and an ID number; and an ID number output from the ID number generating means. Since the configuration is such that the comparison means for comparing the ID number output from the demultiplexing means is provided, access to the communication partner substrate is not required, and a dedicated signal line is not required in the cable. Configuration (means)
Thus, there is an effect that monitoring such as erroneous connection of a cable can be reliably performed in a short time.

According to the second aspect of the present invention, since the plurality of boards are provided with ID number setting means for setting the ID numbers held in the ID number generation section so as to be changeable, the mounting of the boards is realized. There is an effect that the device configuration can be flexibly designed (realized) irrespective of the slot, the connector number, and the like.

According to the third aspect of the present invention, a self ID number generating means for generating a self ID number corresponding to a connector for connecting a cable to a plurality of substrates, Generating means, communication information of the apparatus and its own I
Multiplexing means for multiplexing the own ID number output from the D number generation means and transmitting the multiplexed ID number to the counterpart board, and demultiplexing means for receiving information transmitted from the counterpart board and separating it into communication information and the ID number of the counterpart board And the partner ID number output from the partner ID number generating means and the ID output from the separating means.
Since the configuration is such that comparison means for comparing the number with the number is provided, detailed information at the time of incorrect connection of the cable (information of the board at the wrong connection destination) can be easily determined. : Many) There is an effect that it is possible to cope with the configuration of an apparatus for performing board communication.

According to the fourth aspect of the present invention, the own ID number held by the own ID number generating section and the partner ID number held by the partner ID number generating means are set to be changeable in a plurality of substrates. Since the configuration is such that the ID number setting means is provided, the device configuration can be designed (realized) flexibly without being restricted by the mounting slot and the connector number of the board, and the configuration can be flexibly determined without being restricted by the mounting slot and the connector number. This has the effect that the device configuration can be flexibly designed (realized).

According to the fifth aspect of the present invention, corresponding to the connector for connecting the cable in the plurality of own boards, the own ID
Own ID number generating means for generating a number, counterpart ID number generating means for generating a counterpart ID number obtained by adding a fixed value to the own ID number, communication information of the device, and own ID number output from the own ID number generating means Multiplexing and transmitting to the partner board
Multiplexing means, first demultiplexing means for receiving the information transmitted from the counterpart board and separating the communication information and the ID number of the counterpart board, and the counterpart I output from the counterpart ID number generating means.
A comparison means for comparing the D number with the ID number output from the demultiplexing means is provided. On the other hand, multiplexing is performed by the first multiplexing means in correspondence with connectors for connecting cables in a plurality of mating substrates. Second separating means for separating transmitted information into communication information and an ID number, and ID number adding means for outputting a self-ID number obtained by adding a fixed value to the ID number output from the second separating means And a second multiplexing unit for transmitting information obtained by multiplexing the communication information of the device and the own ID number output from the ID number adding unit to the own board, so that a simpler configuration (means ) Has the effect of monitoring erroneous connections reliably in a short time.

According to the sixth aspect of the present invention, multiplexed information transmitted from a partner board is received corresponding to a connector for connecting a cable in a plurality of boards, and communication information and I / O information are transmitted.
Since PU separation means for separating into D number and cable disconnection information and cable disconnection monitoring means for monitoring cable disconnection based on the cable disconnection information output from this PU separation means are provided, In addition to monitoring erroneous connection, it is possible to monitor disconnection of the cable, and thus it is possible to improve the workability of monitoring the cable connection.

According to the seventh aspect of the present invention, an undefined ID number is defined as the own ID number or the partner ID number by the PU separating means, so that the workability of monitoring the cable connection is further improved. There is an effect that can be improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating an erroneous connection monitoring device according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram illustrating an erroneous connection monitoring device according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram illustrating an erroneous connection monitoring device according to a third embodiment of the present invention.

FIG. 4 is a configuration diagram illustrating an erroneous connection monitoring device according to a fourth embodiment of the present invention.

FIG. 5 is a configuration diagram showing an erroneous connection monitoring device according to a fifth embodiment of the present invention.

FIG. 6 is a configuration diagram illustrating an erroneous connection monitoring device according to a sixth embodiment of the present invention.

FIG. 7 is a configuration diagram showing a conventional incorrect connection monitoring device.

[Explanation of symbols]

1, 2 logic board (board), 1A, 1B, 2A, 2B
Connector, 3, 4 cable, 11A, 11B transmission information multiplexing section (multiplexing means, first multiplexing means), 21
A, 21B transmission information multiplexing section (multiplexing means, second multiplexing means), 11a, 11b, 21a, 21b communication information, 12A, 12B reception information demultiplexing section (separating means,
First separating means), 22A, 22B received information separating section (separating means, second separating means), 12A1, 12
B1, 22A1, 22B1 Received information separating section (PU separating means) 13A, 13B, 23A, 23B, 13A
1, 13B1, 23A1, 23B1 Connection ID number generation unit (ID number generation means), 13A2, 13B2, 23A
2,23B2,13A4,13B4,23A4,23B
4 own ID number generating unit (own ID number generating means), 13A
3,13B3,23A3,23B3,13A5,13B
5,23A5,23B5,13A6,13B6 partner ID
Number generation unit (partner ID number generation means), 13a, 13
b, 14a, 14b, 23a, 23b, 24a, 24
b, 13a1, 13b1, 23a1, 23b1, 13a
2, 13b2 connection ID number (ID number), 14A, 1
4B, 24A, 24B Comparator (comparing means), 14a
1,14b1,24a1,24b1,24a3,24b
3 own ID number, 14a2, 14b2, 24a2, 24
b2, 14a3, 14b3 partner ID number, 15AB,
25AB, 15AB1, 25AB1 CPU (ID number setting means), 15a, 15b, 25a, 25b, 15a
1,15b1,25a1,25b1,25a2,25b
2,15a3,15b3,25a3,25b3 information,
17a, 17b, 27a, 27b Cable disconnection information bits (cable disconnection information), 17A, 17B, 27A,
27B Cable disconnection monitoring unit (cable disconnection monitoring unit), 26A, 26B ID number adding unit (ID number adding unit).

Claims (7)

[Claims] 1. An erroneous connection monitoring device for monitoring connection of a cable of a device that communicates between a plurality of boards via a cable, wherein an ID corresponding to a connector for connecting the cable in the plurality of boards is provided. ID number generating means for generating a number, multiplexing means for multiplexing the communication information of the apparatus and the ID number output from the ID number generating means and transmitting the multiplexed information to the counterpart board, and receiving information transmitted from the counterpart board Communication information and ID
An erroneous connection monitoring device, comprising: separating means for separating numbers into numbers; and comparing means for comparing the ID numbers output from the ID number generating means with the ID numbers output from the separating means. . 2. An erroneous connection monitoring apparatus according to claim 1, wherein an ID number setting means for setting an ID number held in an ID number generation section so as to be changeable is provided in a plurality of substrates. 3. An erroneous connection monitoring device for monitoring the connection of the cable of a device that communicates between a plurality of substrates via a cable, the device being provided with a connector for connecting the cable in the plurality of substrates. Own ID number generating means for generating an ID number; counterpart ID number generating means for generating a counterpart ID number; communication information of the device and a self ID number output from the own ID number generating means for multiplexing Multiplexing means for transmitting to the communication information and ID
An erroneous connection, comprising: separating means for separating into a number; and comparing means for comparing the partner ID number output from the partner ID number generating means with the ID number output from the separating means. Monitoring device. 4. An ID number setting means for setting, in a plurality of substrates, an own ID number held by an own ID number generating section and a partner ID number held by a partner ID number generating means so as to be changeable. The incorrect connection monitoring device according to claim 3, wherein: 5. An erroneous connection monitoring device for monitoring connection of a cable of a device that communicates between a plurality of boards via a cable, the device being connected to a connector for connecting the cable in a plurality of own boards. Own ID number generating means for generating an ID number; counterpart ID number generating means for generating a counterpart ID number obtained by adding a fixed value to the own ID number; communication information of the device and output from the own ID number generating means The first that multiplexes its own ID number and sends it to the partner board
Multiplexing means, first demultiplexing means for receiving the information transmitted from the counterpart board and separating the communication information and the ID number of the counterpart board, and a counterpart ID number output from the counterpart ID number generating means. Comparing means for comparing the ID number output from the first demultiplexing means with the ID number output from the first demultiplexing means; Second separating means for separating the multiplexed and transmitted information into communication information and an ID number, and outputs its own ID number obtained by adding a fixed value to the ID number output from the second separating means ID number adding means, and second multiplexing means for transmitting information obtained by multiplexing the communication information of the device and the own ID number output from the ID number adding means to the own board. Incorrect connection monitoring device. 6. PU separating means for receiving multiplexed information transmitted from a counterpart board and separating it into communication information, ID numbers, and cable disconnection information, corresponding to connectors for connecting cables in a plurality of boards. The cable disconnection monitoring means for monitoring a cable disconnection based on the cable disconnection information output from the PU separation unit, wherein the cable disconnection monitoring means is provided. Wrong connection monitoring device as described. 7. The incorrect connection monitoring device according to claim 6, wherein an undefined ID number is defined as the own ID number or the partner ID number by the PU separation unit.