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11-8
Section
Reading Error Information with CX-Position
306
11-7 Error Display at the CPU
The CPU Unit in a CS1-series PC monitors the PCU, which is a CS1-series Spe-
cial 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 CS1-series opera-
tion 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 following
restart bits.
Restart Bits
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
11-8 Reading Error Information with CX-Position
The following two types of error information can be displayed at the CX-Position.
•
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’s operation manual.
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