Mitsubishi MELSEC QS Series, Руководство пользователя

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6
- 26 6.5 Setting to prevent continuous RUN in TEST MODE
6
FUNCTIONS
(3) Setting the TEST MODE continuous RUN tolerance time
The continuous RUN tolerance time in TEST MODE is set with the PLC parameter
safety setting screen.
(4) Checking the continuous RUN operation time in TEST MODE
The continuous RUN operation time in TEST MODE is stored in special registers
SD561 and SD562.
The continuous RUN operation time in TEST MODE can be checked by monitoring
special registers SD561 and SD562.
Also, if the "TEST MODE TIME EXCEEDED" continuation error occurs, special relay
SM561 turns ON.
Diagram 6.12 PLC parameter safety setting screen
Table6.9 Special relay and special registers storing the results of measuring the TEST MODE continuous RUN time
Special relay,
special register
number
Description Remark
SM561
• Turns ON when the continuous RUN operation
time in TEST MODE exceeds the continuous
RUN tolerance time that has been set.
• Updated when changed.
• When the error is canceled, SM561 is
turned OFF.
SD561
• The continuous RUN operation time in TEST
MODE is stored as a binary value.(in seconds)
• The data is stored in the range 1 to
2147483647.
• When the measured value is cleared, SD561
and SD562 are also cleared.
• Updated in the processing for the end of
each scan
• Continues storing of the measured
values into memory even if the "TEST
MODE TIME EXCEEDED" continuation
error occurs.
• When the error is canceled, SD561 and
SD562 are cleared.
SD562
Setting the continuous RUN tolerance time in TEST MODE
Settable range: 1 to 86400 (1 to 86,400 seconds)
Default: 10 (10 seconds)