4.3.11
Interfaces
USB device, USB host and COM1 interfaces as standard
Connection
USB device interface
USB host
COM1 serial interface RS485
(galvanically isolated)
COM2 interface can be expanded using optional boards
Connection
Ethernet
Serial interface RS422
(galvanically isolated)
Serial interface RS485
(galvanically isolated)
PROFIBUS-DP
(Connection
Symbol and terminal designation
element)
(21)
(20)
(13)
(Connection
Symbol and terminal designation
element)
(14)
4 Electrical connection
1 TxD+/RxD+
2 TxD-/RxD-
1 TX+
2 TX-
3 RX+
6 RX-
1 RxD+
2 RxD-
3 TxD+
4 TxD-
3 TxD+/RxD+
4 TxD-/RxD-
3 RxD/TxD-P
(B)
5 DGND
5
9
4
6 VP (+5 V)
8
3
7
2
6
8 RxD/TxD-N
1
(A)
Transmission/
received data +
Transmission/
received data -
Transmission data +
Transmission data -
Received data +
Received data -
Received data +
Received data -
Transmission data +
Transmission data -
Transmission/
received data +
Transmission/
received data -
Transmission/
received data +
Ground
Voltage supply
Transmission/
received data -
31