JPH04256018A - State display device - Google Patents

Abstract

PURPOSE:To display only effective information among plural pieces of state information written in a state information register group, and in addition, to confirm only the effective information without causing misoperation due to the intervention of manual work by displaying it repeatedly. CONSTITUTION:This device is constituted of the state information register group 1 which discriminates the effectiveness of plural pieces of the state information, and displays successively the state of only the effective state information on a display device 8 by the way of time division, and after displaying all the information, stores plural pieces of the state information, a read-out register 3 for display which holds temporarily the contents of this read-out data, a control circuit 2 which controls the read-out/write-in of the data, the update of the selection information of the register, and the repetition of the display, a displaying time setting circuit 6 which sets displaying time, a timing generation circuit 7 which generates displaying timing by this circuit information, and a display control circuit 5 which confirms the effectiveness of the read data, and issues a display instruction to the display device only when the data is effective.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing device, and more particularly to a means for displaying status information, which displays a plurality of pieces of status information on a single display in a time-sharing manner at arbitrary times. The present invention relates to a status display device that repeatedly displays information after displaying all information.

0002

[Prior Art] Conventionally, when displaying status information, multiple pieces of status information, such as a summary of a failure status and detailed information, have not been displayed in a time-sharing manner, and human intervention is required by means such as display switching. The display was to be switched by . Even in the case of surface division in window format, the switching of the contents was the same.

0003

[Problems to be Solved by the Invention] The above-mentioned conventional technology has the disadvantage that when checking detailed information etc. by switching the display through manual intervention, incorrect information may be recognized due to an erroneous operation of the switching operation. Ta.

0004

[Means for Solving the Problems] The status display device of the present invention relates to status information display means in an information processing device, and determines the validity of a plurality of status information, and
Only valid status information is displayed on one display in a time-sharing manner, and after all the information is displayed, a status information register group that stores a plurality of status information, and a readout data of the status information register group are displayed. a read data register that temporarily holds contents; a data control circuit that controls read/write of the data, update of register selection information, and display repetition; and a time setting circuit that sets display time;
a timing generation circuit that generates timing pulses for display timing based on information from the setting circuit; and a display control circuit that checks the validity of the read data and issues a display instruction to the display only if it is valid. It is composed of:

An object of the present invention is to display only valid information among a plurality of pieces of status information written in the status information register, in order to prevent the above-mentioned drawbacks from erroneous operation. An object of the present invention is to provide a status display device that allows only valid information to be obtained.

[0006]

[Embodiment] FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, in which 1 is a state information register group for storing a plurality of state information data, and 1a is a state information register group for storing a plurality of state information data. Write data, 1b is read data from status information register group 1, 2 is a control circuit for reading/writing to status information register group 1 and selecting one of the register groups, 3 is a control circuit from status information register group 1 The data read out under the control of 2 is transferred to the data comparison circuit 4.
5 is a display read register that stores data only when it is determined to be valid (if invalid, it retains the data that was previously determined to be valid), and 5 sets the display time for the data held in the display read register 3. This is a display control circuit that outputs display data to a display 8 using timing pulses from a timing generation circuit 7 that generates timing pulses at time intervals set by a circuit 6.

FIG. 2 is a timing chart showing the operation of this embodiment, and the details of the operation will be explained using this diagram.

First, it is assumed that a 4-digit (4-byte) ASCII code is set in the status information register group 1 of FIG. 1 by the register control signal 2a from the control circuit 2, as shown in FIG. Next, the read data is transferred to the data comparison circuit 2 by the register control signal 2a (register address information, read control signal) from the control circuit 2.
It is determined whether the read data is valid data by comparing it with the comparison data (in this case, if the space code is 20, it is invalid), and only when it is determined to be valid, the read data valid signal is sent. 4a to the display read register 3. The read data 1b is stored in the display read register 3 by the read data valid signal 4a. The data set in the display readout register 3 is read as the first display data 3a by a pulse from the timing generation circuit 7 which generates the display timing pulse 7a at the time set in the display time setting circuit 6. The second display data 5a is taken into the display control circuit 5 and output to the display 8.

Display device 8 receiving second display data 5a
Now, the display data is converted from ASCII code to display data suitable for the display device 8, and as shown in FIG.
will be displayed.

Next, the display control circuit 5 notifies the control circuit 2 of the first register address update request signal 5b by the timing pulse 7a mentioned above, and the control circuit 2 that has received this request updates the updated register address information. (address number 2), the data comparison circuit 4 determines that it is invalid and the read data valid signal 4a to the display read register 3 is not sent, so the contents of the display 8 does not change. At this time, the control circuit 2 from the data comparison circuit 4
In response to the second register update request signal 4b, the register information (register address number 3) updated again by the control circuit 2 is sent to the status information register group 1, and the data comparison circuit 4 determines that it is valid, and then the next The display data on the display 8 is updated with the display timing pulse of “
1234" is displayed.

When "1234" is displayed from "ABCD" and then "△END" is displayed, the control circuit 2 updates the register address, but in this case, the register address is from 1 to 4. Therefore, in the next register access, register number 1 is selected and “AB
CD'' will be displayed repeatedly, and only necessary information will be automatically and repeatedly displayed at regular intervals.

0012

[Effects of the Invention] The status display device of the present invention displays only valid information among the plurality of status information written in the status information register group, and repeatedly displays the valid information, thereby eliminating erroneous operations due to manual intervention. This has the effect of allowing you to check only valid information.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

[Figure 2] Timing chart showing the operation of this embodiment

[Figure 3]
Reference diagram for supplementary explanation of Figures 1 and 2

[Explanation of symbols]

1 Status information register group 1a Write data 1b Read data 2 Control circuit 2a Register control signal 3 Display read register 3a First display data 4 Data comparison circuit 4a Read data valid signal 4b Second register address update request signal 5
Display control circuit 5a Second display data 5b First register address update request signal 6
Display time setting circuit 6a Display time setting data 7 Timing generation circuit 7a Display timing pulse 8 Display device

Claims (1)

[Claims] Claim 1: In an information processing device, it relates to a state information display means that determines the validity of a plurality of state information and displays only valid state information on one display in a time-sharing manner. After displaying all the information, a group of status information registers stores a plurality of pieces of status information, a read data register temporarily holds the contents of the read data of the group of status information registers, and a read/write function for reading/writing the data. a data control circuit that updates register selection information and controls display repetition; a time setting circuit that sets display time; a timing generation circuit that generates timing pulses for display timing based on information in the setting circuit; 1. A status display device comprising: a display control circuit that confirms the validity of the data and issues a display instruction to a display only when the data is valid.