1:N Multi-drop communication

A RS-232C cable is used to connect a PC with a PLC. RS-422 cables are used to connect between PLCs.

 

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Components and parameters of computer link module,

Component

Name of Module

Parameter

Ex. of Station No.

PC

Built-in RS-232C

-

-

PLC NO.1

CM1-SC02A

RS-232C

Exclusive Comm.

0

RS-422

Exclusive Comm.

Linked Mode

PLC NO.2

CM1-SC02A

RS-232C

Exclusive Comm.

1

RS-422

Exclusive Comm.

Independent Mode

PLC NO.3

CM1-SC02A

RS-232C

Exclusive Comm.

2

RS-422

Exclusive Comm.

Independent Mode

PLC NO.N

CM1-SC02A

RS-232C

Exclusive Comm.

31

RS-422

Exclusive Comm.

Independent Mode