Applicable Systems
CJ/CS Series
Symptoms
FINS/TCP connection rejected, maximum connections reached.
Possible Causes
Number of simultaneous TCP connections exceeds PLC limit (default 8-16 depending on model).
Troubleshooting Steps
Reduce number of connecting clients, increase connection limit if configurable, use connection pooling.
How to Reset
Reduce connections
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Source: Omron CP1H FINS/TCP communication
Category: PLC & VFD
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