Siemens SIMATIC ET 200eco PN - Page 87

Interrupt, error, and system messages
7.3 Diagnostics by means of LED display
ET 200eco PN
Operating Instructions, 08/2016, A5E01250250-AJ
87
Status display of the port LEDs
Table 7- 2 Status display of the port LEDs
LED
Meaning
Remedy
P1 LK
P2 LK
Off
Off
No connection to the switch/IO Controller.
Check the IE cable.
On
On
Connection to switch/IO Controller.
-
Status display DC 24V (only on I/O devices with digital outputs)
The DC 24V LED is lit in green color to indicate that you have connected the 2L+ switched
load voltage supply. If the LED is not lit, check whether power is switched, or whether the
fuse is okay.