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APPX
Appendix 5 Buffer Memory
143
A
Output signal and internal error
Error information of the whole system is stored.
■
Buffer memory address
The buffer memory address of this area is as follows.
■ List of output signals and internal errors
System CRC
A CRC value for checking configuration and setting is stored.
■ Buffer memory address
The buffer memory address of this area is as follows.
■
List of system CRCs
Buffer memory name Address
1st Module Output signal and Internal error 102
Bit Output status or input error Operation
b0 Output signals Q2/3 0: No output
1: Output
b1 Output signals Q0/1
b2 Status change of a rotary switch 0: Not changed
1: Changed
b3 External device monitoring
connection open 0: Not detected
1: Detected
b4 Input concurrence error 0: Not detected
1: Detected
b5 Input process error 0: Not detected
1: Detected
b6 Input cross-circuit error 0: Not detected
1: Detected
b7 Internal error 0: Not detected
1: Detected
b8 to b15

Fixed to 0
Buffer memory name Address
1st Module System CRC 103
Buffer memory Name Description
b0 to 7 System CRC (lower) CRC_L for checking configuration and settings
b8 to b15 System CRC (upper) CRC_H for checking configuration and settings