Siemens S120 - X22 Serial Interface (RS232)

Control Units, Control Unit Adapters and operating components
7.4 Control Unit CU310-2 DP (PROFIBUS)
AC Drive
292 Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
7.4.2.4
X22 serial interface (RS232)
Table 7- 24 X22 serial interface (RS232)
Pin
Signal name
Technical data
1
Reserved, do not use
2
XRXD_RS232
Receive data
3
XTXD_RS232
Transmit data
4
Reserved, do not use
5
GND
Ground
6
Reserved, do not use
7
Reserved, do not use
8
Reserved, do not use
9 Reserved, do not use
Connector type 9-pin SUB D connector
Features
The maximum data rate is:
● 120 kBaud at a load capacity of 1.0 nF
● 20 kBaud at a load capacity of 2.5 nF