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8-1
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
8
This section describes the procedure and other information required to conduct loop-
back tests to check the serial ports.
8-2 Device Variable for CJ-series Unit (Loopback Test) . . . . . . . . . . . . . . . . . . 8-4
Device Variables for CJ-Series Unit for System Settings . . . . . . . . . . . . . . . . . 8-4
Device Variables for CJ-Series Unit for Status . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Loopback Test