Priority Setting - Mitsubishi Q2ACPU User Manual

9. MAINTENANCE FUNCTION
9.9.2

Priority setting

In addition to LEDs, the Q3ACPU and Q4ACPU are provided with an LED indicator on the
front face of the CPU module.
This indicator shows the following items:
If several errors occurred at a time, the indication conforms to the following conditions.
The following shows how to set priorities in special registers SD207 to SD209.
1) Error message
2) CHK instruction numbers
3) Annunciator numbers, annunciator comments, the time when an annunciator
was switched ON, etc.
4) Character string and comment displays in accordance with LED instructions
5) Clock data
1) Stop error is indicated unconditionally.
2) Operation continue error are indicated in accordance with error item numbers
in an order of priority set by default.
Priorities can be changed.(set with special registers SD207 to SD209)
3) If several errors with the same priority occur, a first detected error is
indicated.
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