User manual

3 PLC Communication
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3.3 1:N communication
It is able to communicate between a GP or LP and the number ‘N’ of PLCs or controllers.
All of connected PLCs for 1:N communication have to be same type, have RS422(or RS485)
port and able to set the station for 1:N communication.
In case of mono type, 1:N communication is available by link device of CH2.
In case of color type, 1:N communication is available by setting PLC station and device directly
from tag (numeral input/display, ASCII input/display) of CH1, CH2 and by by link device.
3.3.1 System organization
The following figure displays 1:N communication organization for a GP/LP and the number ‘N’ of
PLCs or controllers.
GP/LP communicates with PLC by RS422(or RS485) communication. (RS232C serial
communication is not available for 1:N communication.).
For 1:N communication, the communication stations of connected PLC should not be overlapped.
The number ‘N’ of PLCs as one group is available only set one PLC type from GP Editor, you
have to organize be same type PLC to communicate.
The maximum number of connectable PLCs are the number of sepcified PLC station. For
system stablity, please set under 16 stations.