X140 Serial Interface (Rs232) - Siemens SINAMICS S120 Manual

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9.21 K90, Control Unit CU320-2 DP
For diagnostic purposes, the X127 LAN interface features a green and a yellow LED. These
LEDs indicate the following status information:
Table 9- 38
LED
Green
Yellow
9.21.8

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- 39
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.
402
LED statuses for the X127 LAN interface
State
On
Off
On
Off
Serial interface (RS232) X140
Pin Designation
2 RxD
3 TxD
5 Ground
Description
10 or 100 Mbit link available
Missing or faulty link
Sending or receiving
No activity
Technical data
Receive data
Transmit data
Ground reference
Equipment Manual, 04/2020, A5E37067587A
Cabinet Modules liquid cooled