Radix DMC-4000T Instruções de Operação Página 4

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1 Serial Communication Pin definition
MT5000/4000 Series HMI and PLC connecting guide
1 Serial Communication Pin definition
Pin Designations
Pin assignment of the 9-pin male, D-SUB, COM0/COM2. This port is used to
connect MT5000/MT4000 series touch screens and provides RS-232/485/422
port.
Note: The COM2 port is used for programming and debugging, and it is also
used for communication, but only provides RS-232 port controller.
COM0/COM2
Pin # Signal
PLC [RS-422]
4 wire
PLC [RS-485]
2 wire
PLC
[RS-232]
PC / PLC
[RS-232]
male
1 Rx-(B) RS485 Rx RS485B
2 RxD_PLC RS232 Rx
3 TxD_PLC RS232 Tx
4 Tx- RS485 Tx
5 GND Signal ground
6 Rx+(A) RS485 Rx RS485A
7 RxD_PC/ PLC RS232 Rx
8 TxD_PC/ PLC RS232 Tx
9 Tx+ RS485Tx
Pin Designations
Pin assignment of the 9-pin female, D-SUB, COM1. This port is used to connect
MT5000/MT4000 series touch screens and provides RS-232/485/422 port.
Pin assignment of this port is basically the same as COM0. The only difference is
that COM0 is connected with the RS-232 interface of the PC to serve as the
hardware flow control signal for PLC-232 connection.
COM1female
Pin
# Signal PLC [RS-422] 4 wire PLC [RS-485] 2 wire PLC [RS-232]
1 Rx-(B) RS485 Rx RS485B
2 RxD_PLC RS232 Rx
3 TxD_PLC RS232 Tx
4 Tx- RS485 Tx
5 GND Signal ground
6 Rx+(A) RS485 Rx RS485A
7 CTS_PLC Clear to send
8 RTS_PLC Request to send
9 Tx+ RS485 Tx
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