How do the four communication ports of PLC Panasonic FP-X realize communication? Please give an example.

COM4 is not the fourth communication port, but RS485 communication mode.

FP-X supports the following six communication cards:

COM 1？ 1 channel RS232C

COM2？ Dual channel RS232C

COM3？ 1 channel RS485/RS422

COM4？ 1 channel RS485

COM5？ 1 channel RS485+ 1 channel RS232C(2 channels)

COM6？ 2 channel RS485

Not that there are six communication ports, but that there can be six communication plugs, and different cards can support different communication methods (there is only one place to insert communication cards).

Extended data:

Panasonic PLC programming should pay attention to logical thinking. Programming itself is a logical thinking process. In high-level languages, such as many premise discrimination statements, this is the causal relationship in logic. The PLC program is composed of these causal relationships: judging whether the premise is established, and then judging to execute the corresponding instructions.

Therefore, sorting out the logical order between the events of the object is a preparatory work that must be done carefully before programming. After receiving a programming task, the first thing to do is to sort out a logical scheme diagram, get the user's approval, and then really enter the programming process. ?

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