Program creation device

A program and programming logic technology, applied in the field of program creation devices, can solve problems such as difficult retrieval, update, complicated programs, etc., and achieve the effect of eliminating complexity

Inactive Publication Date: 2019-03-15
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When processing large-capacity data with a ladder program, the program becomes complicated, and it is difficult to search and update data that matches the conditions from large-capacity data

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0033] figure 1 It is a diagram showing a configuration example of a program creation device and a PLC that executes a program created by the program creation device according to Embodiment 1 of the present invention.

[0034] The program creation device 1 according to Embodiment 1 is a device for creating a program executed by the PLC 2, and includes a definition information acquisition unit 11, a DB (Data Base) definition file generation unit 12, a program component generation unit 13, a DB definition A file storage unit 14 , a program component storage unit 15 , a program creation unit 16 , a program file storage unit 17 and a communication unit 18 .

[0035] The PLC 2 is a programmable logic controller having a database function, and includes a database generation unit 21 , a DB definition file storage unit 22 , a database 23 , a program execution unit 24 , a program file storage unit 25 , and a communication unit 26 . Although in figure 1 Although description is omitted...

Embodiment approach 2

[0089] Figure 20 It is a diagram showing a configuration example of a program creation device and a PLC that executes a program created by the program creation device according to Embodiment 2 of the present invention.

[0090] In the program creation device 1a according to the second embodiment, the definition information acquisition unit 11 of the program creation device 1 described in the first embodiment is used as the definition information acquisition unit 11a, and a DB definition file acquisition unit 19 is added. Since the components other than the definition information acquisition unit 11a and the DB definition file acquisition unit 19 of the program creation device 1a are the same as those of the program creation device 1 with the same reference numerals, description thereof will be omitted. Like the program creation device 1, the program creation device 1a can be configured by figure 2 The hardware 100 implementation is shown.

[0091] The PLC 2a according to t...

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Abstract

The program creation device (1) according to the present invention is provided with: a definition information acquisition unit (11) which acquires database definition information, which is informationindicating the configuration of a database in a programmable logic controller; and a program component generation unit (13) which, on the basis of the database definition information, generates a program component used to create a program for manipulating the database.

Description

technical field [0001] The present invention relates to a program creating device for creating a program executed by a programmable logic controller. Background technique [0002] In recent years, cases where programmable logic controllers (Programmable Logic Controllers, hereinafter, referred to as PLCs) process large-capacity data such as production recipes are increasing. When a large-capacity data is processed by a ladder program, the program becomes complicated, and it is difficult to search and update data matching the conditions from the large-capacity data. Therefore, PLCs having a database function are also spreading (Patent Document 1). [0003] In the PLC described in Patent Document 1, as a command used in a ladder program executed by the PLC, a command for database access is defined as a command for operating the database, and when the command for database access is detected, it is converted into SQL (Structured Query Language) commands. Thereby, the number o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/05
CPCG05B19/056G05B2219/23246G06F16/252Y02P90/02G05B19/102G05B19/41835G05B19/42G06F16/2428G06F16/24542G06F16/258
Inventor 佐佐木贤一甲斐启文
Owner MITSUBISHI ELECTRIC CORP
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