X140 Serial Interface (Rs232) - Siemens SINAMICS S120 Manual

For diagnostic purposes, the X127 LAN interface features a green and a yellow LED. These
LEDs indicate the following status information:
Table 9- 43
LED
Green
Yellow
9.23.6

X140 serial interface (RS232)

The AOP30 operator panel for operating/parameterizing the device can be connected via the
serial interface. The interface is located on the underside of the Control Unit.
Table 9- 44
Connector
Connector type: 9-pin Sub-D connector
Note
Connecting cable to the AOP30
The connecting cable to AOP30 may only contain the three contacts which are listed in the
table; a completely assigned cable may not be used.
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
LED statuses for the X127 LAN interface
State
On
Off
On
Off
Serial interface (RS232) X140
Pin Designation
2 RxD
3 TxD
5 Ground
9.23 K95, Control Unit CU320-2 PN
Description
10 or 100 Mbit link available
Missing or faulty link
Sending or receiving
No activity
Technical data
Receive data
Transmit data
Ground reference
Options
415