21
7 Installation
Inputs/outputs
Terminal assignments
Symbol
Serial interface RS422
(option)
RxD
5
4
RxD +
RxD –
Receive data
TxD
2
1
TxD +
TxD –
Transmit data
GND
3
GND
Serial interface RS485
(option)
+
-
2
1
TxD/RxD +
TxD/RxD –
GND
3
GND
Serial interface
Profibus-DP
(option)
VP
4
supply voltage plus, (P5V)
RxD/TxD-P
1
receive/transmit data positive,
B conductor
RxD/TxD-N
2
receive/transmit data negative,
A conductor
DGND
3
ground for data transmission
Logic input 1
13
19
Logic input 2
12
19
Supply voltage
see nameplate
AC/
DC
AC:
L1
N
TE
phase
neutral
technical
earth
DC:
L +
L –
4
5
2
3
1
1
2
3
1
2
4
3
13
19
12
19
N
L-
L1
L+
TE
