1-1
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
1
This section introduces the hardware and software functions of the Serial Communica-
tions Boards and the Serial Communications Units, including the communications
modes, system configurations, and specifications.
Protocol Macro, Serial Gateway, No-protocol, or Modbus-RTU Slave . . . . . . 1-10
1-7 Selecting the Serial Communications Mode . . . . . . . . . . . . . . . . . . . . . . . 1-22
Introduction