JPS62257514A - Plural operation face type keyboard for digital control - Google Patents

Abstract

PURPOSE:To obtain a simple key panel simple and easy to use by a small area by preparing many key panel units having key arrangement conforming to operation and proper key codes. CONSTITUTION:The keyboard is provided with a fixed basic circuit section 3 corresponding to an interface of the processing device of an operator's console and a programmable circuit section 2 that receives key signals of a key panel variable according to use. Plural key panel unit sections are prepared according to various functions, and connected changeably to the basic circuit section 3 by an attachable and detachable cable 4 or a connector. As the key panel 1 thus constituted can be separated from the fixed part by the cable 4, the key panel 1 can be prepared according to use. Thereby, number of keys can be reduced, and operation can be made easy as keys can be arranged for exclusive use.

Description

[Detailed description of the invention] [Industrial application field] The present invention is a 2M operation digital control system.

The present invention relates to an operator's console for monitoring, and particularly to a keyboard used for inputting input/output, calculation commands, etc. to a processing unit.

[Conventional technology]

The conventional keyboard is published in Utility Publication No. 56-35860,
As seen in the actual EX system operator's console, the key configuration and signals are set unique to the keyboard. In other words, with conventional keyboards, the layout of keys and the signal code when a key is pressed are fixed, so in order to use it for multiple purposes, you need to increase the number of keys or add one key.
It is necessary to use a single key in multiple ways, and in order to use a single key in multiple ways, complicated operations must be performed.Therefore, in conventional devices, it is necessary to change the key side to suit the system. was not taken into account.

[Problem that the invention seeks to solve]

Conventional devices like this have a limited number of keys, do not give consideration to operator ease of use, and create a universal keyboard that is suitable for any system due to economical and There was a manufacturing problem.

As mentioned above, the keyboard of a digital control system is used to issue commands for operation and monitoring when constructing the system and once the system is completed. The former creates graphic screens.

It is a tool for creating control loops by inputting control methods and control constants, and it is a tool for creating software. For this purpose, it is more convenient to use symbols, letters, and numbers that have no meaning for each key, and to use them in combination to give them meaning. It is desirable that the latter is easy to operate and can be commanded with one touch.

It would be better to assign a command meaning to each key, but in order to achieve both at the same time, it would be necessary to provide many keys, give keys multiple meanings, or force them to be arranged in an unreasonable manner.
The keyboard becomes difficult to operate.

[Purpose of the invention]

The purpose of the present invention is to provide an economical and easy-to-use multi-operation interworking keyboard for digital control by preparing a plurality of operation surfaces suitable for the type of operation and having a structure in which the operation surfaces can be replaced depending on the purpose. It's about doing.

[Means for solving problems]

The present invention consists of a fixed basic circuit that interfaces the keyboard with the processor of the operator's console, a key panel that must be changed depending on the application, and a programmable circuit for receiving and converting key signals. The purpose of the present invention is to have a structure that allows the two to be connected by a circuit connection cable. In addition, since the operation key is a command with a meaning, a circuit configuration that can convert multiple character codes into a program pull is required so that a combination of multiple character codes can be combined.

In this way, the present invention combines a key panel with key switches for outputting different command signals, and a program and buffer for converting the key panel signals into unique signals suitable for the purpose. In a keyboard consisting of a key panel unit and a basic circuit having an interface for sending the above-mentioned command signals to the arithmetic processing unit, the former key panel unit part is prepared in multiple faces according to various functions, and the latter part can be detached from the latter basic circuit part. The device is characterized in that it is configured so that it can be freely connected and exchanged using a standard cable or connector.

[Effect]

The key panel configured in this manner is separated from the fixed portion by a cable.

Therefore, the key panel can be prepared according to the purpose, so the number of keys can be reduced and the keys can be arranged in a dedicated manner, making operation easier. In addition, the part that converts key signals into code is dedicated to this purpose, so it is integrated with the key panel and configured programmably using ROM, etc., and the common circuit for the interface with the microprocessor and processing unit is fixed. , economical.

〔Example〕

An embodiment of the present invention will be described below.

FIG. 3 shows an example of a structural diagram of an operator's console in a digital control system, and FIG. 4 is a structural diagram thereof.

In the figure, the operator's console includes a CRT 12, a keyboard 13. Floppy disk 16 and processing device 14
is stored. The processing device 14 includes a CPU 17 and a memory 18. Keyboard Inter 7-R-Ice 15 or I1
0 equipment (CRT 12. Magnetic disk 19. Floppy disk 16. Printer 20. Process input/output device 21)
Contains each interface. keyboard 13
Input signals from the CPU 7 are processed via the keyboard interface 15 and displayed or output.

Here, the signal from the keyboard 13 must be a code that can distinguish the keys, but the conversion is done by the keyboard 13.
It is done in 3. The conversion to the code varies depending on the key, and an example is shown in FIG.

A is the most common example, converting numbers and characters into codes and transmitting them to a processing device. That is, when the key 22 is pressed,
A pair of key code 23 and status code 24 corresponding to the key 22 is sent out.

The processing device receives it and determines which key 22 was pressed.

B is often used as an operation key for driving, and the key 22 has the meaning of one operation command, so when the key 22 is pressed, a series of key codes 23 and status codes 2 are sent.
4 are combined and sent out.

C is a key 22 that is used in a special way, and while the key 22 is pressed, a key code 23 and a status code 24 are sent out at certain intervals.

This is useful when moving the set point of an instrument or moving the screen in the direction of an arrow. Various other ways of use are possible, but commercializing such a variety of keys 22 in one type of keyboard would be expensive, have many restrictions such as the keyboard area, and be difficult to operate. Fig. 1 shows the structure of an embodiment of the keyboard of the present invention that solves these problems, and Fig. 2 shows an example of the circuit configuration.The key panel has different shapes such as 1 and 1'. and
The key panel is integrated with a dedicated key circuit section 2 that generates key codes 23 and status codes 24 corresponding to the keys 22. The circuit section is connected to the basic circuit section 3 by a circuit connection cable 4. The basic circuit section 3 receives the key code 23 and status code 24 from the dedicated key circuit section 2 and sends it to the processing device 14. The key panel and dedicated key circuit section 2 can be replaced depending on the type of operation.

Next, key panel 1. Dedicated key circuit section 2. The circuit configuration of the basic circuit section 3 will be specified. Each contact signal of the key switch 10 is input to the data buffer 9. The input data is sent to the microprocessor 6 by control signal C.
access. The microprocessor 6 outputs a control signal C and an address signal A, takes out data from the data buffer 9, composes a key code 23 and a status code 24 according to ROMII included in the data conversion program, and temporarily saves them in the RAM 7. The saved key code 23 and status code 24 are sent to the microprocessor 6 by the input/output circuit 8 and sent to the processing unit 14.
sent to.

〔Effect of the invention〕

As explained above, according to the present invention, by preparing a large number of key panel units each having a key arrangement suitable for operation and a key panel with unique key symbols, it is possible to select and convert them by operation. can. Therefore, a simple and easy-to-use key panel can be realized with a small area, functions can be increased without limit by increasing the number of key panel units, and an economical and inexpensive keyboard can be realized by using the same basic circuit. Can be done.

[Brief explanation of drawings]

The first @ is f4!2 diagram of the keyboard of one embodiment of the present invention,
Figure 2 is a circuit diagram of Figure 1, Figure 3 is a structural diagram of the operator's console in the digital control system, and Figure 4 is a diagram of the structure of the operator's console in the digital control system.
This figure is a block diagram of FIG. 3, and FIG. 5 is a diagram showing an example of signal conversion for each type of key. 1...Key panel, 2...Dedicated key circuit section, 3...
・Basic step, 4...Circuit connection cable, 5...Keyboard cable, 6...Microprocessor, 7...
・Keyboard cable, 8...RAM, 9...data buffer, 10...key switch, 11...RO
M, 22...key, 23...key code, 24...
・Status code.

Claims (1)

[Claims] 1. A key panel unit that combines a key panel with key switches for outputting different command signals, a program and a buffer for converting the key panel signals into unique signals suitable for a purpose, and the above-mentioned key panel unit. In a keyboard consisting of a basic circuit section having an interface for sending out command signals to an arithmetic processing unit, the former key panel unit section is prepared in multiple planes according to various functions, and the latter basic circuit section is connected to a detachable cable or connector. A multi-operation surface type keyboard for digital control, characterized in that it is configured so that it can be freely connected and exchanged.