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9-1
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
9
This section describes the troubleshooting and maintenance procedures for the Serial
Communications Unit.
9-2 Communications Status Error Notification . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Serial Gateway (Serial Gateway or Protocol Macro Mode) . . . . . . . . . . . . . . . 9-4
Troubleshooting and Maintenance