202
3.17.1 LEDs indicating errors
When an error occurs, the LEDs on the front of the CPU module turns on/flashes. ( Page 221, Section 3.20)
3.17.2 Clearing errors
Continuation errors can be cleared. The High-speed Universal model QCPU and Universal model Process CPU can
clear those errors by types.
(1) Errors that can be cleared
The following errors can be cleared.
(2) Clearing method
Errors are cleared in two ways.
• Using a programming tool Note 3.11
• Using the special relay (SM) and special register (SD)
• SP.UNIT DOWN • AC/DC DOWN • BATTERY ERROR
• FLASH ROM ERROR • MEM.ACCESS ERROR • SP.UNIT ERROR
• ICM.OPE.ERROR • FILE OPE.ERROR • REMOTE PASS.FAIL
• SNTP OPE.ERROR • OPERATION ERROR • PRG.TIME OVER
• F*** (Annunciator) • FUSE BREAK OFF • SINGLE PS.DOWN
• SINGLE PS.ERROR • UNIT VERIFY ERR. • MULTI CPU ERROR
• PID ERROR
Note 3.11
Only the High-speed Universal model QCPU and Universal model Process CPU can clear errors using a programming
tool.
Continuation
error
Continuation
error
No continuation
error
A continuation error has
occurred.
BATTERY ERROR
OPERATION ERROR
PRG. TIME OVER
Programming tool
Select the error to be cleared. (Check all that apply.)
Eliminate the error cause
and clear the error.
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