Technical specifications
7.5 Hardware descriptions
Pin assignment RS485
Pin
1
2
3
4
5
6
7
8
9
108
Short description
Data-
Data+
nc
nc
M
nc
nc
nc
nc
Meaning
Transmit / receive data - (I/O) for half-duplex mode
Transmit / receive data+ (I/O) for half-duplex mode
Signal ground
Operating Instructions, 11/2016, A5E35782395-AB
SIMATIC IPC227E