X140 Serial Interface (Rs 232) - 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 4-7
LED
Link port
Activity port
4.3.2.7

X140 serial interface (RS 232)

An external display and operator device for operator control/parameterization can be connected
via the serial interface. The interface is located on the underside of the Control Unit.
Table 4-8
Connector type: 9-pin SUB D connector
Control Units and additional system components
Equipment Manual, 06/2020, 6SL3097-5AH00-0BP2
LED statuses for the X127 LAN interface
Color
-
Green
-
Yellow
X140 serial interface (RS232)
Pin
1
2
3
9
4
5
6
7
1
8
9
Status Description
Off Missing or faulty link
Continuous light 10 or 100 Mbit link available
Off No activity
Flashing light Sending or receiving
Signal name
Reserved, do not use
RxD
TxD
Reserved, do not use
Ground
Reserved, do not use
Reserved, do not use
Reserved, do not use
Reserved, do not use
Control Units and operating elements
4.3 Control Unit CU320-2 PN (PROFINET)
Technical data
-
Receive data
Send data
-
Ground reference
-
-
-
-
57