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.
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 |