Siemens SIMATIC ET 200AL System Manual page 323

Interrupts, error messages, diagnostics and
system alarms
5.1 Status and error displays
LED displays
The figure below shows the LED displays (status and error displays) of the interface module
IM 157-1 PN.
①
②
③
④
⑤
⑥
⑦
Figure 5-1
IM 157-1 PN (6ES7157-1AB00-0AB0)
Equipment Manual, 05/2021, A5E32347036-AE
RUN (green)
ERROR (red)
MAINT (yellow)
ET-CON1 (green)
ET-CON2 (green)
P2 LINK (green)
P1 LINK (green)
LED displays
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