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Controller, information processing apparatus, and program

A technology of information processing devices and controllers, applied in the field of control systems, to achieve the effects of efficient soundness inspection and efficient debugging

Active Publication Date: 2014-08-20
ORMON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As measures, for example, there are cases where it is necessary to further speed up the control processing of the controller and cases where it is necessary to improve the response performance of the database system

Method used

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  • Controller, information processing apparatus, and program
  • Controller, information processing apparatus, and program
  • Controller, information processing apparatus, and program

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Embodiment Construction

[0034] Embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same code|symbol is attached|subjected to the same or equivalent part in a figure, and description is not repeated.

[0035]

[0036] First, the system configuration of the control system of the present embodiment will be described. In this embodiment, a programmable logic controller (PLC) that controls a control object such as a machine or equipment will be described as a typical example of a control device. However, the control device of the present invention is not limited to PLC, and can be applied to various control devices.

[0037] figure 1 It is a schematic diagram which shows the system structure of the control system 1 of this embodiment. refer to figure 1 , the control system 1 includes a PLC 100 , an auxiliary device 300 connected to the PLC 100 , and a database device 400 that receives access from the PLC 100 . PLC100 executes the user prog...

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PUM

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Abstract

A technique capable of efficiently performing debugging in a program and checking of soundness in a control system including a controller and a database system. A CPU unit has a communication interface for connection to a database device. The CPU unit executes a user program to call a DB connection service in accordance with an instruction included in the user program and generate a statement to access the database device. In the DB connection service, a statement according to an access instruction is generated, and the generated statement is transmitted to a database system. After that, information indicative of time until a response from the database system is received is acquired, and the acquired information is stored as a log into a memory. A support device acquires the information and displays it on a monitor.

Description

technical field [0001] The present invention relates to a control system including a controller which periodically executes a user program, and more particularly to a control system connected to a database system, an information processing device and a program. Background technique [0002] Machines and equipment used in many production sites are typically controlled by a control system mainly composed of a control device such as a programmable logic controller (hereinafter also referred to as “PLC”). Various log (log) output functions are installed in such a control system in order to verify after the fact that a bad situation occurred at the time of system configuration or operation. [0003] As a prior art document related to a control device equipped with such a function, Japanese Unexamined Patent Publication No. 2012-208932 (Patent Document 1) discloses a PLC system that controls the operation of instruments (devices) A PLC and a programmable display connected to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG06F11/3419G06F17/30386G06F11/3476G06F2201/80G06F11/3495G06F2201/835G06F16/24
Inventor 冈村弘太郎太田政则西山佳秀矢尾板宏心中崎胜
Owner ORMON CORP
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