Siemens SIMATIC NET CP 343-2 Manual page 114

7 Dealing with Problems / Error Displays
Table 10-1 , continued
Error
The "CER" LED and the LEDs of
active AS-i slaves flicker irregu-
larly.
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114
Possible Cause
The replaced AS-i slave is not cor-
rectly connected or is defective.
An extender is installed in the AS-
interface with "Line1" and "Line2"
and the connections are reversed.
Remedy
Check the connections of the
slave and if necessary replace the
slave.
Correct the connections on the
extender.
CP 343−2 / CP 343−2 P AS−Interface Master
Release 08/2008
C79000−G8976−C149−04