Title:
CONTROL DEVICE AND LOGGING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/199192
Kind Code:
A1
Abstract:
A control device (10) repeatedly executes a user program (221) for controlling a device. The control device (10) is provided with: a data memory (21) for storing data for executing the user program (221); a control processor (231) for executing the user program (221), and reading and outputting data from the data memory (21) every time the user program (221) is executed; a plurality of data buffers (33) for storing, in a predetermined order, data that is output by the control processor (231); a processing unit (31) having a second trace processor (312) for calculating, from the data stored in two of the data buffers (33) among the plurality of data buffers (33), a data difference; and a difference storage unit (34) for accumulating and storing the difference calculated by the second trace processor (312).
Inventors:
LIU HONGHUI (JP)
TAKAGI TOMOAKI (JP)
TAKAGI TOMOAKI (JP)
Application Number:
PCT/JP2020/014642
Publication Date:
October 07, 2021
Filing Date:
March 30, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
G05B19/05; G06F11/36
Foreign References:
| JP2010211555A | 2010-09-24 | |||
| JP2011113443A | 2011-06-09 | |||
| JPS607814B2 | 1985-02-27 |
Attorney, Agent or Firm:
KIMURA Mitsuru (JP)
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