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PLC-5 System Overview
System Components
A PLC-5 / 1771 control system at minimum consists of a processor module and I/O modules in a single 1771 chassis with a power supply. Choose the processor module with the on-board communication ports needed.
On-board Universal Remote I/O scanner ports are available on all PLC-5 processors. On-board Extended Local I/O scanner ports are available on some PLC-5 processors. On-board ControlNet ports are available on some PLC-5 processors. To provide a DeviceNet I/O scanner port to the system, a DeviceNet scanner module (1771-SDN) is necessary.