12. Communication Design Examples 12.12 Controlling START/STOP of 2 DVP PLCs through Communication (RS Instruction) Master PLC Master ID = K10 EH/EH2 RS-485 Slave1 Slave2 Slave address = K1 Slave Address = K2 ES series SS series Control Purpose: z Controlling start/stop status of 2 Slave PLCs through communication by master PLC. Parameter Settings: Ъ If PLC can not run normally due to improper parameters, users can set the PLC to factory defaults by clicking ”Communication (C)”> “Format PLC Memory” from the menu bar of WPL Soft and then set the parameters according to the above table. Devices: DVP-PLC Application Examples 12-41 Master/Slave Station No.
Communication format Master PLC K10 (D1121 = K10) ASCII, 9600, 7, E, 1 (D1120 = H86). Communication format of all connected Slave PLCs must be the same. Slave 1 K1 (D1121 = K1) Slave 2 K2 (D1121 = K2) Device Function X0 Start/stop Slave 1 X1 Start/stop Slave 2 M0 Execute the 1st RS instruction M1 Execute the 2nd RS instruction