Connection Of Jct1 Controller To Rs485 (4W) Modbus-Rtu Bus; Connection Of Jct1 Controller To Rs485 (2W) Modbus-Rtu Bus - CEL-MAR ADA-4040PC8 User Manual

ADA-4040PC8

3.3.1. CONNECTION OF JCT1 CONTROLLER TO RS485 (4W) MODBUS-RTU BUS

RS485 / RS422
connector
Tx+/ A
Rt
Tx-/ B
Rx+
Rt
Rx-
GND
MASTER
MODBUS-RTU
DEVICE
Fig 5. Example connection of ADA-4040PC8 to RS485 (4W) 4-wires bus and JCT1 controller to ADA-4040PC8

3.3.2. CONNECTION OF JCT1 CONTROLLER TO RS485 (2W) MODBUS-RTU BUS

RS485 / RS422
connector
Tx+/ A
Rt
Tx-/ B
Rx+
Rt
Rx-
GND
MASTER
MODBUS-RTU
DEVICE
Fig 6. Example connection of ADA-4040PC8 to RS485 (2W) 2-wires bus and JCT1 controller to ADA-4040PC8
RS485(4W) BUS
19200Bd/8/N/1
MODBUS-RTU
SLAVE-1
MODBUS-RTU
RS485(2W) BUS
19200Bd/8/N/1
MODBUS-RTU
SLAVE-1
MODBUS-RTU
6
RS422(4W)
9600Bd/8/N/1
Controller
VIRAP JCT
RS422(4W)
9600Bd/8/N/1
Controller
VIRAP JCT
RS485(2W)
9600Bd/8/N/1
Controller
VIRAP JCT
RS485(2W)
9600Bd/8/N/1
Controller
VIRAP JCT