JPS62108310A - Controller for operating panel - Google Patents

Abstract

PURPOSE:To execute a control of an operating panel by a simple constitution by providing an exclusive controller for a display, and an input/output part which can handle each LED of a switch/LED output part of a panel, as a contact input/coil output. CONSTITUTION:An indicator controller 21 for controlling an indicator 31, and an input/output part 22 for controlling a switch panel 32 and an LED output part 33 are provided. A pattern corresponding to a character code outputted from a CPU 13 of a programmable controller is read out of a ROM 23 of the controller 21, and a controller 24 outputs it to the indicator 31 and displays it. Also, an inputting circuit/16-point LED outputting circuit 28 of 64 keys of the inputting part 22 scans each switch of a panel 32/an LED output part 33, by synchronizing with a signal generated by a scan clock generating circuit 26, and inputs and outputs a signal successively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an operation panel controller that controls an operation panel that operates a programmable controller.

In order to display on a display such as a T (cathode ray tube) or LCD (liquid crystal display), and to input signals manually using keys, a high-end model such as a personal computer is connected. That is, as shown in FIG.
(Central processing unit) 1, the switch panel 5 is connected to the CPU 1 via the input unit 4, and the LED output section 7 is connected to the CPU 1 via the output unit 6.

[Problem that the invention seeks to solve]

As described above, in the past, since a high-level model such as a personal computer was used, there was a problem in that the user had to create software using a high-level language such as 13AslC, which was inconvenient. In addition, crab knit 4. Because I am using Dekaninit 6.

There are problems in that the number of cards required is equal to the number of input points and the number of output points, and the number of signal lines for connection is also large, which is inconvenient.

The present invention was made to solve such problems, and an object of the present invention is to obtain a controller for an operation panel that can control an operation panel consisting of a display, a switch panel, an LED output section, etc. with a simple configuration. shall be.

[Means for solving problems]

A controller for an operation panel according to the present invention is a controller for an operation panel.

A controller that controls the display on the operation panel.

a display controller having a memory for storing patterns of characters, symbols, etc. to be displayed on the display;

a scanning clock generation circuit that generates a scanning clock;

An input circuit that sequentially inputs signals from the switch panel of the operation panel to the programmable controller in synchronization with the scanning clock, and a light emitting element output section of the operation panel from the programmable controller in synchronization with the scanning clock. The input/output section includes an output circuit that sequentially outputs signals to the input/output section.

[Effect]

In the controller for the operation panel of the present invention, the display is controlled by a dedicated controller, the switch on the switch panel is treated as a contact input for the programmable controller by the input circuit, and the light emitting element in the light emitting element output part is controlled by the programmable controller by the output circuit. Treated as coil output and controlled.

〔Example〕

The programmable controller of this invention is the second
As shown in the figure. The programmable controller 10 includes an input section 11. Output section 12, CPU 13, program writing section 11 14. It is composed of a data storage section 15 and a power supply section 16, and a peripheral device 17 is provided for writing and reading programs to and from the programmable controller IO.

The input unit 11 converts AC and DC input signals from input devices (not shown) such as limit switches and pushbutton switches into signal levels handled internally (usually DC5V level), and also converts them into signal levels handled internally (usually DC5V level). It has a function of selecting necessary input signals and sending them to the CPU 13. This input section 11 is also called an input interface.

The output unit 12 holds the calculation results for each output signal from the CPU 13 and amplifies the internal signal level to a level that can drive an output device such as a solenoid valve (not shown). This output section 12 is called an output interface.

The Ci' U 13 is a part that takes in necessary input signals from the input section 11/l) according to the contents of the program, performs necessary calculations, and outputs the calculation results to the output section 12. Series-parallel connections and time limits of contacts.

There are sequence operations such as counting, arithmetic operations such as addition and subtraction, and data processing operations such as numerical data transfer and code conversion. It also processes a timer (not shown) and a counter (not shown).

The program storage unit 14 stores the program which is the control content.
The stored portion of the program is read out to the CPU 13 and executed. The data storage unit 15 includes a timer,
This is the part that stores counter contents and numerical data. The power supply unit 16 is a part that converts an external power supply into necessary DC power internally. The peripheral device 1G17 is a program and monitor device that creates programs, writes to and reads from the program storage unit 14, displays calculation results and input/output signals, and displays current values of timers and counters.

FIG. 1 shows a controller for an operation panel according to an embodiment of the present invention. CP of programmable controller lO
U 13 includes the operation panel controller 2 of this embodiment.
An operation panel is connected via 0. The operation panel 30 includes a display 31, a switch panel 32, and an LWD output section. Display 31 is CH, T or LC
Either D is fine.

The operation panel controller 20 includes a display controller 21 that controls a display 31, a switch panel 32, and an LE.
It is composed of an input/output section 22 that controls the output section D. The display controller 21 includes a ROM 23 that stores patterns and programs of characters and symbols to be displayed, a controller 24 that controls the display 31, and a Vf (, AM 25. When a character code is output from the programmable controller Cp v 13, a character pattern corresponding to this character code is read from the ROM 23, and is output to the display 31 by the controller 24 and displayed. Any pattern of characters can be displayed by changing the character pattern in the ROM 23.Also, if the ROM 23 is opened to the user, data for one display can be set, and the user can create a program. becomes easier.

The input/output unit 22 includes a scan block generating circuit 26 (!:,C(7)) which generates a scan block for scanning, and a stab key input circuit 2 which is controlled in synchronization with the scan block.
7 and a 16-point LED output circuit 28.

- The key input circuit 27 scans each switch on the switch panel 32 of the operation panel 30 in synchronization with the scan clock, and sequentially inputs signals. The 16-point LED output circuit is
Each switch of the LED output section 33 of the operation panel 30 is scanned in synchronization with the scan clock, and signals are sequentially output.

Since it is a scanning method, the number of signal lines can be reduced.

Since the operation panel controller 20 according to this embodiment is configured in this manner, each switch on the switch panel 32 can be treated as a contact input for the programmable controller 10, and each LED on the LED output section 23 can be used as a contact input.
Can D be treated as a coil output using an existing program? 1i+3 'Ifllll can do it.

Note that the display 31 may be of any type such as CT or LCD, or may be of any other type such as a switch panel 32 or an LED output section.

〔Effect of the invention〕

As explained above, this invention has one display controller and an input/output section in the operation panel controller, so it has an extremely simple configuration that allows the display, switch panel,
This has the excellent effect of being able to control the LED output section.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an operation panel controller according to an embodiment of the present invention, FIG. 2 is a block diagram of a programmable controller, and FIG. 3 is a block diagram showing a configuration for conventional operation panel control. . In the figure, 10... programmable controller. 11... Input section, 12... Output section, 13... CP
U, 14...Program storage unit, 15...Data storage unit, [6...Power supply unit. 17... Peripheral equipment, 20... Controller for operation panel. 21... Display controller, 22... Input/output section,
Edict...ROM, 24-:I nt o-5, 25-,
V)t, AM, 26. ,, scan clock generator circuit, 27...64 key input circuit. Ah...16 points LgD output circuit%30...Operation panel, 31...Display, 32...Switch panel, 33
., LHD output g. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] In an operation panel controller that controls an operation panel for operating a programmable controller, a display includes a controller that controls a display of the operation panel, and a memory that stores patterns of characters, symbols, etc. to be displayed on the display. a scan clock generation circuit that generates a scan clock; an input circuit that sequentially inputs signals from the switch panel of the operation panel to the programmable controller in synchronization with the scan clock; and a scan clock generation circuit that synchronizes with the scan lock. and an input/output section having an output circuit that sequentially outputs signals from the programmable controller to the light emitting element output section of the operation panel.