WTE TReX-460, Руководство пользователя

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TReX User Manual v15.30 Firmware
PLC Logging
When PLC LOGGING has been ENABLED through command or the menu, there is a
timestamped log entry added for each physical output change on the local or remote TReX
unit(s).
There is a small delay in writing log entries, that will slightly affect the PLC program scan rate.
A delay of up to 10ms can be expected per write, therefore logging would typically only be
used when looking for key events during system commissioning or logging of infrequent
critical events. Storage capacity on the internal SD card will typically allow for more than
100,000 entries.
Log files are saved to the file PLC- AABB .LOG where:
AA is the current year.
BB is the current month.
New log files are automatically created as the month changes.
File content is:
2022-02-03 TUE 18:36:24,R:3,(Q:5) 1
Date and time are logged, together with the rung of the PLC program that resulted in the
change, and the output that did change. Finally the new output state is displayed (1 or 0).
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