Omron CJ1W-C113 - REV 02-2008, Operation Manual

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Error Display at the CPU Section 11-7
11-7 Error Display at the CPU
The CPU Unit monitors the PCU, which is a Special I/O Unit, for the following
items.
• Hardware irregularities
• Unit number settings outside the settable range
• Duplicated unit numbers
• I/O refresh between the CPU Unit and the PCU
If an error is detected for one of the above items, one of the following flags in
the Auxiliary Area will turn ON. (For details, refer to the relevant CPU Unit
operation manual.)
• Special I/O Unit Number Duplication Flag
• Special I/O Unit Setting Error Flag
• Special I/O Unit Setting Error, Unit Number Flag
• Special I/O Unit Error Flag
• Special I/O Unit Error, Unit Number Flag
For methods of clearing errors, refer to 11-3 LED Error Indicators and 11-5
Error Code Lists . After the error has been cleared, the PCU can be restarted
without resetting the power supply by using (OFF
→
ON
→
OFF) one of the fol-
lowing restart bits.
Restart Bits
11-8 Reading Error Information with CX-Position
The following two types of error information can be displayed at the CX-Posi-
tion.
• The current error
• The errors that occurred since the power was turned ON or the PCU was
restarted, including the present error (20 max.)
For details, refer to the CX-Position Operation Manual (W433).
Bit address Function
A50200 to A50215 Restart bits for unit numbers 0 to 15
A50300 to A50315 Restart bits for unit numbers 16 to 31
A50400 to A50415 Restart bits for unit numbers 32 to 47
A50500 to A50515 Restart bits for unit numbers 48 to 63
A50600 to A50615 Restart bits for unit numbers 64 to 79
A50700 to A50715 Restart bits for unit numbers 80 to 95