Siemens 6ES7540-1AD00-0AA0 - Error and System Messages; Communication Module LED Indicators

CM PtP RS232 BA communication module (6ES7540-1AD00-0AA0)
Manual, 01/2013, A5E03777472-01
21
Error and system messages
6
LED displays of the communication module
The figure below shows the LED displays of the CM PtP RS232 BA communication module
with open front panel.
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① LED display RUN
② LED display ERROR
③ LED display MAINT
④ LED display TXD
⑤ LED display RXD
Figure 6-1 CM PtP RS232 BA view