Mitsubishi Electric QJ71LP21 Reference Manual page 144

5 PARAMETER SETTINGS
Stop
Setting of operation
mode upon an error
of remote I/O station
Continue
Stop
Setting of operation
mode upon an error
of remote I/O station
Continue
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1: The operation mode of a remote I/O station under the error status can be set
differently from the parameters of the remote master station (CPU module).
When an error (fuse blowout or I/O verification error) occurs on the remote
master station (CPU module) and remote I/O station, the data link and output
of the remote I/O station are determined based on the combination of the
parameter settings of remote I/O stations and remote master station (CPU
module).
The table below shows the status of the data link and output of the remote
I/O station based on the combination of parameter settings.
i) When an error occurs on the remote master station (CPU module)
Setting of operation mode when an error has occurred on the remote master station (CPU module)
Halt
Data link: Stopped on all stations.
Output: Conforms to the setting of output
holding/clearing.
Data link: Stopped on all stations.
Output: Conforms to the setting of output
holding/clearing.
ii) When an error occurs on a remote I/O station
Setting of operation mode when an error has occurred on the remote master station (CPU module)
Halt
Data link: Stopped on all stations.
Output: Conforms to the setting of output
holding/clearing.
Data link: Stopped on all stations.
Output: Conforms to the setting of output
holding/clearing
For details, refer to the QCPU User's Manual (Function Explanation, Program
Fundamentals) for details about "PLC system settings", "PLC RAS settings" and "I/O
assignment."
Continue
Data link: All stations are normal.
Output: All stations output normally.
Data link: All stations are normal.
Output: All stations output normally.
Continue
Data link: The error station is disconnected.
The other stations operate normally.
Output: The error station conforms to the setting of
output holding/clearing. The other stations
output normally.
Data link: All stations are normal.
Output: All stations output normally.
MELSEC-Q
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