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Control device and control system

A control device and control program technology, which is applied to the program control and electrical program control in the sequence/logic controller, and can solve the problems of different selected values ​​and loss of selected values.

Active Publication Date: 2019-05-17
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] As mentioned above, some of the information referred to when executing the control program is determined while operating the industrial machine, so the initial value described in the source code of the project data in the personal computer and the information after rewriting in the control device may be different. The selected value is different
Therefore, when the source code of the engineering data is subsequently edited using the design tool program, since the initial value is described in the source code of the engineering data in the personal computer, the selected value after rewriting in the control device is lost.

Method used

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  • Control device and control system
  • Control device and control system
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0034] figure 1 It is a figure which shows the structure of the control system which used the control apparatus concerning Embodiment 1. The control system 1 includes: a control program creating device 2 , a programmable display (JIS B 3551:2012, programmable display) 3 , a higher-level control device 4 , a control device 5 , and machines 6 and 7 .

[0035] The control program creation device 2, the programmable display 3, the host control device 4, and the control device 5 are connected via a network N. As for the network N, a LAN (Local Area Network) or the Internet is exemplified.

[0036] The control device 5 controls the machines 6 and 7 . As the control device 5 , a programmable controller, a C-language controller, a motion controller, or an inverter are exemplified.

[0037] The control program creating device 2 creates project data including a control program executed by the control device 5 and information referred to when the control program is executed. Examples...

Embodiment approach 2

[0153] Figure 15 It is a functional block diagram of the control device according to Embodiment 2. As described in Embodiment 1, the reading speed and writing speed of the internal storage unit 5 a 7 are faster than the reading speed and writing speed of the external storage unit 8 . Therefore, when the internal storage unit 5a7 has sufficient free capacity for storing the source project data 8a, it is preferable that the internal storage unit 5a7 stores the source project data 8a.

[0154] Therefore, in the control device 5A according to Embodiment 2, the internal storage unit 5a7 stores the source project data 8a.

[0155] The reading speed and writing speed of the internal storage unit 5 a 7 are faster than those of the external storage unit 8 . In addition, the processing load for the CPU 5 a 1 to read and write to the internal storage unit 5 a 7 is smaller than the processing load for the CPU 5 a 1 to read and write to the external storage unit 8 .

[0156] Therefore,...

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PUM

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Abstract

This control device is provided with: a storage unit which stores source project data including the control program and information referred to at the time of execution of the control program, and binary project data obtained by compiling the source project data; memory for loading the binary project data at the time of execution of the control program; a binary rewriting unit which, on the basis of received data, rewrites the binary project data stored in the storage unit and the binary project data loaded in the memory; and a source rewriting unit which, on the basis of received data, rewrites the source project data stored in the storage unit.

Description

technical field [0001] The invention relates to a control device and a control system for controlling industrial machinery. Background technique [0002] To control industrial machinery, control devices are used. As a control device, a programmable controller (JIS B 3502:2011, programmable controllers (PLC)), a C language controller, a motion controller, or an inverter is exemplified. [0003] Data including a control program executed by a control device and information referred to when executing the control program is called project data. Examples of the information referred to when executing the control program include numerical values ​​used in control calculations, parameters, device memory that defines the work area in the memory of the control device, or connections that indicate the connection status of the control device and industrial machinery information. [0004] As for the engineering data, the source code is created by executing the design tool program on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
CPCG05B19/05
Inventor 加纳敏之臼井善夫
Owner MITSUBISHI ELECTRIC CORP