JPH03186951A - Memory capacity setting device - Google Patents

Abstract

PURPOSE:To simplify the recognition of an allocation state and the alteration of setting by storing memory division information into a memory division information recording part whose storage content is not volatilized by means of turning on/off a power source and rewriting memory division information in the memory division information recording part based on alteration information. CONSTITUTION:Memory division information recording stored in the memory division information recording part 9 whose storage content is not volitilized by turning on/off the power source is read. Then, the allocation state of a program storage part 2a and a data storage part 2b in an information storage part 2 is displayed in a display means 10 based on memory division information. Then, the display of the display means 10 is referred to and memory division information in the memory division information recording part 9 is rewritten based on alteration information inputted from an input means 11. Thus, the work of the recognition of the allocation state and the alteration of setting is simplified and setting errors are reduced.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a memory capacity setting device for setting a memory capacity and an address in a memory card or an input/output card incorporated in a control device that performs sequence control or the like.

[Conventional technology]

FIG. 3 is a block diagram showing a conventional memory capacity setting device. In the figure, 1 is the memory card of the control device, 2
is the information storage section of the memory card 1. 2a is a program storage section in which programs are stored in the information storage section 2, and 2b is a data storage section where data is similarly stored. Here, the program storage section 2 in this information storage section 2
The allocation status between data storage section a and data storage section 2b can be set and changed according to the user's specifications. Reference numeral 3 denotes a switch group that sets memory division information that defines the allocation state between the program storage section 2a and the data storage section 2b by the on/off states of eight switch units. 4 tobacco switch, performs address conversion processing on the memory division information set in group 3, and stores the program storage unit 2.
This is a memory address conversion processing unit that allocates data storage unit 2a and data storage unit 2b. Further, FIG. 4 is a perspective view showing a schematic configuration of a control device using such a memory card 1. As shown in FIG. In the figure, 1 is the memory card, and 5 is a central processing unit (hereinafter referred to as CPU) that executes control processing for the entire control device.
This is a CPU card equipped with a 6 is a transmission card for transmitting information between display means, input means, etc., and 7 is a power source for this control device. Reference numeral 8 denotes a case of a control device in which each of these cards is mounted. Next, the operation will be explained. In the example shown in FIG. 3, the memory division information set in switch group 3 is as follows:
Of the eight switch units, ■■, ■5■, and ■ are set to the on state. The memory address conversion processing unit 4 reads the memory division information and calculates (2°+2ff+2'+25+2')X2B=HexB
900 is executed, and the address H in the address space of the information storage unit 2, HexOOO-F F F F
An address conversion process is performed in which the exB900 and later are handled as the data storage unit 2b. If you want to change the memory allocation state in which the data storage section 2b is located from address HexB 900 onward to, for example, the data storage section 2b from address HexB 800 onward, first turn off the power supply 7 and then disconnect the memory. Pull out the card 1 from the housing 8. Next, with reference to an instruction manual or the like, the settings of each switch unit of the switch group 3 on the memory card 1 are changed so that, for example, the switch units ■, ■2■, and ■ are turned on. After changing the settings, insert the memory card 1 into the position from which it was extracted in the housing 8 and turn on the power supply 7, and the memory address conversion processing unit 4 will process the allocation state to change the address to HexB800 or higher. It is changed to the storage section 2b.

[Problem to be solved by the invention]

Since the conventional memory capacity setting device is configured as described above, when checking the allocation state between the program storage section 2a and the data storage section 2b or changing the allocation state, the power supply 7 of the control device is used. Turn off the memory card 1, remove it from the housing 8, check the on/off status of each switch unit in the switch group 3, and change the settings while referring to the instruction manual, etc., and insert it into the housing 8 again. The problem was that it took a lot of effort to check the allocation status and change the settings, and it was easy to make settings mistakes. The present invention has been made to solve the above-mentioned problems, and an object thereof is to provide a memory capacity setting device that allows 111 confirmation of allocation status and setting changes with ease, and is less likely to cause setting errors.

[Means to solve the problem]

The memory capacity setting device according to the present invention stores memory division information in a memory division information recording section whose storage contents do not volatilize when the power is turned on and off, and reads out memory division information from the memory division information recording section. Based on the information, the allocation status of the program storage section and data storage section in the information storage section is displayed on the display means, and based on the change information input from the input means, the memory division information in the memory division information recording section is rewritten. The memory capacity setting processing means is provided for performing the following steps.

[Effect]

The memory capacity setting processing means in the present invention reads out the memory division information record stored in the memory division information recording section whose storage contents do not volatilize when the power is turned on and off, and sets information based on the memory division information. The allocation state of the program storage section and the data storage section in the storage section is displayed on the display means, and based on the change information input from the input means with reference to the display on the display means, the allocation status of the program storage section and the data storage section in the memory division information recording section is displayed. By rewriting memory partition information, a memory capacity setting device is realized in which the work of checking the allocation state and changing the settings is easy, and there are fewer setting errors.

【Example】

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, 1 is a memory card, 2 is an information storage unit, 2a
2b is a program storage unit, 2b is a data storage unit, and 4 is a memory address conversion processing unit, which are the same or equivalent parts to those in the conventional system denoted by the same reference numerals in FIG. 3, and detailed explanations thereof will be omitted. Reference numeral 9 denotes a memory division information recording section which is formed of a storage means protected from power outage by a battery, and is mounted on the memory card 1 and stores memory division information. Reference numeral 10 denotes a cathode ray tube (hereinafter referred to as CRT) display as display means for displaying the allocation status of the program storage section 2a and data storage section 2b in the information storage section 2 according to the memory division information. Reference numeral 11 denotes a keyboard as an input means through which change information for changing the allocation state of the program storage section 2a and data storage section 2b in the information storage section 2 is inputted; 6 12 a memory read out from the memory division information recording section 9; Based on the division information, the allocation state of the program storage section 2a and data storage section 2b in the information storage section 2 is changed to C.
In addition to displaying on the RT display 10, this CRT
This memory capacity setting processing means rewrites the memory division information in the memory division information recording section 9 based on the change information input from the keyboard 11 with reference to the display on the display 10. In this memory capacity setting processing means 12, 13 is a reading processing section that reads memory partitioning information from the memory partitioning information recording section 9; 14 is a conversion processing section that converts the read memory partitioning information into a signal that can be displayed on the CRT display 10; A display processing section 15 displays the converted signal on the CRT display 10. Further, reference numeral 16 refers to an input reading processing section that reads change information input from the keyboard 11 with reference to the display on the CRT display 10, and 17 a conversion processing section that converts the read change information into a signal that can be stored in the memory division information recording section 9. A section 18 is a write processing section that writes the converted change information into the memory division information recording section 9. FIG. 2 is an explanatory diagram showing the state of connection of the memory capacity setting processing means 12 to the control device. In the figure, the same or corresponding parts as shown in FIGS. The explanation will be omitted. A transmission line 19 connects the memory capacity setting processing means 12 to the transmission card 6 of the control device. Next, the operation will be explained. When checking the allocation status of the program storage section 2a and data storage section 2b of the information storage section 2, information giving an instruction to that effect is inputted from the keyboard 11. The memory capacity setting processing means 12 that has received this information communicates with the transmission card 6 via the transmission path 19, and stores it in the memory division information recording section 9 mounted on the memory card 1 in the reading processing section 13. Read the current memory partition information. Next, the read memory division information is converted by the conversion processing section 14, and the capacities of the program storage section 2a and the data storage section 2b are displayed on the CRT display 10 by the display processing section 15. The user confirms the allocation status of the information storage section 2 based on the display on the CRT display 10. In addition, when changing the allocation status settings, input information on the keyboard that instructs the display of guidance as necessary.
1, how the information storage section 2 can be divided into the program storage section 2a and the data storage section 2b, and the division method for each case is shown on the CRT display 10.
displayed above as guidance. Referring to the guidance displayed on the CRT display 10, a desired division state is selected from among the plurality of cases, and information instructing the selection is inputted from the keyboard 11. The memory capacity setting processing means 12 which received this information,
Based on the information from the keyboard 1 that communicates with the transmission card 6 via the transmission path 19 and is read by the input reading processing section 16,
The conversion processing unit 17 generates change information for allocating the program storage unit 2a and the data storage unit 2b to the specified division state, and the write processing unit 18 writes the change information to the memory division information recording unit 9. As a result, the memory division information recording section 9
The memory division information in =10 is rewritten to be allocated to the specified division state. The memory address conversion processing section 4 converts the program storage section 2a and the data storage section 2b in the information recording section 2 based on the memory division information read from the memory division information recording section 9.
and are allocated in the same way as in the conventional case. In addition, in the above embodiment, the memory division information recording section uses a storage means protected from power outage by a battery, but a battery for protection against power outage is required as in the case of an electrically rewritable continuous memory. It is also possible to use a storage means that does not contain the data. Further, in the above embodiment, a CRT display is used as a display means and a keyboard is used as an input means. However, other input/output devices such as a liquid crystal display or a mouse may be used, and the same effect as in the above embodiment can be obtained. play.

【Effect of the invention】

As described above, according to the present invention, memory partitioning information is stored in the partitioning information recording section of the memo whose storage contents do not volatilize when the power is turned on and off, and based on the memory partitioning information read from the memory partitioning information recording section, display the allocation status of the program storage section and data storage section in the information storage section on the display means, and further refer to the display and change the memory in the memory division information storage section based on the change information input from the input means. Since the configuration is configured to rewrite the division information, there is no need to turn off the power to the control device or remove the memory card from the housing each time you want to check the allocation status of the information storage section or change settings. This has the effect of providing a memory capacity setting device in which the work is greatly simplified and setting errors are less likely to occur.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram showing a memory capacity setting device according to an embodiment of the present invention, FIG. 2 is an explanatory diagram showing the connection between its memory capacity setting processing means and a control device, and FIG. 3 is a conventional memory capacity setting device. FIG. 4 is a perspective view showing the schematic structure of the control device. 2 is an information storage section, 2a is a program storage section, 2b is a data storage section, 9 is a memory division information recording section, 10 is a display means (CRT display), 11 is an input means (keyboard), and 12 is a memory capacity setting processing means. . In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] In a memory capacity setting device that sets and changes the allocation state of the program storage section and data storage section in the information storage section based on the processing result of address conversion processing of the memory partition information, the memory partition information is used to turn the power on and off. a memory division information recording section for storing information without volatilization in the information storage section; a display means for displaying an allocation state of a program storage section and a data storage section in the information storage section according to the memory division information; an input means into which change information for changing the allocation state of the storage section and the data storage section is input; and a program storage section and data in the information storage section based on the memory division information read from the memory division information recording section; and memory capacity setting processing means for displaying the allocation state of the storage section on the display means and rewriting the memory division information in the memory division information recording section based on the change information input from the input means. A memory capacity setting device characterized by: