JPS61168043A - Peripheral equipment of programmable controller - Google Patents

Abstract

PURPOSE:To improve working efficiency, by displaying a microcomputer program together with a sequence program on the screen of a CRT provided to the peripheral equipment of a programmable controller. CONSTITUTION:When discriminating that the referred content of a memory A is not a display converting signal 10, a programmable controller (PC) displays the referred content of the memory A, namely, a sequence program (SP) 9, in the case of the example in the figure, on a CRT 2. If the content of the memory A is discriminated as the display converting signal 10, on the other hand, the PC advances to Step 24 and outputs and displays the program content stored in the first address of the microcomputer program 11 of the memory 11 on the CRT 2, so as to change the display of the SP 9 being displayed to the MP 11.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a peripheral device for a programmable controller including a CRT, a keyboard, and the like.

[Conventional technology]

FIG. 3 is a structural diagram of a peripheral device electrically connected to a programmable control (hereinafter referred to as PC) not shown. In the figure, 1 is the content of a sequence program showing an example, and information regarding PCK is displayed as an image. CRT
2 is displayed on the screen 21 in front of you. Reference numeral 3 denotes a keyboard for inputting and operating PCK-related programs, etc., and is usually arranged adjacent to the CRT 2.

In the peripheral device of the programmable controller having such a configuration, when a plurality of keys on the keyboard 3 are operated, the sequence program contents 1 of the PC are changed.
Input this input sequence program content 1
is displayed as sequence program content 1 on the screen 2a by the CRT 2. However, this sequence program content 1 is sequentially stored in the memory of a PC (not shown) before being displayed. Further, in the case of a peripheral device of a normal PC, only the program related to the above-mentioned sequence is displayed.

[Problem that the invention seeks to solve]

Conventional PC peripheral devices are configured as described above, so the program of the microcontroller built into the PC is displayed on a display device other than this peripheral device, and cannot be displayed on this peripheral device, which is inconvenient. There was a problem.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a peripheral device for a program controller that can display a microcomputer program as well as a sequence program.

[Means for solving problems]

A peripheral device for a programmable controller according to the present invention writes a display conversion signal and □ for display-converting a sequence program, a microcomputer program, and a program displayed on a CRT into the stored contents of a memory included in the programmable controller, and converts the display conversion signal into When recognized by the programmable controller, the display on the CRT is converted from a sequence program to a microcomputer program.

[Effect]

In the peripheral device of the programmable controller according to the present invention, the programmable controller recognizes the display conversion signal in the sequence program written in the memory, so that the microcomputer program is displayed on the screen together with the sequence program on the CRT, improving work efficiency.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, the same reference numerals as in FIG. 3 are the same. In the figure, 4 is a display conversion signal content showing an example for displaying a microcomputer program displayed next to sequence program content 1, and 5 is a microcomputer program showing an example displayed with display conversion signal content 4 at the beginning. It is.

Figure 2 is a flowchart of a program for the PC to automatically display the CRT2 screen 2aK, and Figure 3 is a flowchart of the program for the PC to automatically display the screen 2aK of the CRT2.
FIG. 2 is a state diagram of a memory A in which program contents related to display in the memory A are stored. Note that this memo IJAK has an address attached to it, and the contents of memo IJA are stored in this address layer.
are sequentially displayed on the screen laK of the CRT2.

In the peripheral device of the programmable controller configured as described above, the memory A shown in FIG.
The contents of the memory are sequentially displayed based on the flowchart ()K of FIG. 2. First, in step 21 of FIG. 2, the contents of the memory A of FIG. 4 are referred to in the address layer. Here, the memory AK in FIG. 4 has a sequence program 9° display conversion signal 10. A microcomputer program 11 is housed therein.

Next, the PC converts the contents of the referenced memory A into converted signal contents 1.
0 (step 22), and as a result of this judgment, if it is determined that the display conversion signal is not the display conversion signal 10, the content of the referenced memory A, that is, in this case, the sequence program 9, is faithfully transferred to the CRT 2 by the KPC. (Step 23). In this embodiment, sequence program content 1 shown in FIG. 1 is displayed.

As a result of the above judgment (step 22), if it is judged that the display conversion signal is 10, the process proceeds to step 24, and in order to change the display of the sequence program 9 that had been displayed up to that time to the microcomputer program 11, the PC is The program contents stored at the starting address of the microcomputer program 11 are output to the CRT 2 (step 24).

The CRT 2 sequentially displays the display contents sequentially output from the PC from the upper side of the screen 2a (step 25).

An example of the content displayed by these display operations is shown in the first example.
Sequence program content 1 displayed on screen 2a in the figure
, display conversion signal 4, and microcomputer program content 5.

[Effects of the Invention] As described above, according to the present invention, since the microcomputer program is configured to be displayable together with the jitters program on the screen of the CRT provided in the peripheral device of the programmable controller, the display of the microcomputer program can be This has the effect of improving work efficiency and providing a very convenient peripheral device for the programmable controller without having to use a peripheral device.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram showing peripheral devices of a programmable controller 2 according to an embodiment of the present invention, and FIG.
A flowchart of a program for displaying on an RT, FIG. 3 is a structural diagram showing the peripheral devices of a conventional programmable controller, and FIG. 4 is a diagram of the CRTK shown in FIG. 1. FIG. In the figure, 1 is the sequence program content, 2 is the CR
T, 2a is a screen, 3 is a keyboard, 4 is a display conversion signal content, 5 is a microcomputer program content, 9 is a sequence program, 10 is a display conversion signal, and 11 is a microcomputer program. In each figure, the same reference numerals indicate the same or corresponding parts. Patent applicant Mitsubishi Electric Corporation 2a...JL, surface 5...Maiko)
Prob ° U 4 Document Figure 4 Δ Procedural Amendment (Voluntary) 8.16% 10.F 8

Claims (1)

[Claims] A programmable controller that automatically controls machine tools, etc. using a sequence program, a CRT that is connected to this programmable controller and displays the contents of the sequence program on the screen, and a CRT that is connected to this CRT and inputs the sequence program, etc. a keyboard; and a keyboard in the programmable controller;
A programmable controller comprising the sequence program whose contents are displayed on the screen of the RT, a microcomputer program, and a memory in which a display conversion signal for converting the display of the sequence program to the display of the microcomputer program is stored. Peripheral equipment.