Siemens CP 243-2 - Manual (Page 133)

Dealing with Problems / Error Displays
6-5
SIMATIC NET CP 243-2 AS-i Master
C79000-G8976-C142/02
Table 6-1 Error Displays of the CP 243-2 / Remedying Errors
Error Remedy Possible Cause
Automatic address programming
is unsuccessful although the
“AUP” display is lit. The configuration data (I/O confi-
guration, ID codes) of the repla-
ced AS-Interface slave do not
match the values of the original
AS-Interface slave. Check whether the correct “repla-
cement slave” was used.
Compare the information from the
manufacturer about configuration
data.
If you want to replace the original
AS-Interface slave with a different
type, assign the address with the
addressing unit and reconfigure
the CP 243-2 (for example by
pressing the SET button).
The replaced AS-Interface slave
does not have the address “0”.0 Set the address of the replaced
AS-Interface slave with the ad-
dressing unit.
Replaced AS-Interface slave is
not correctly connected or is de-
fective. Check the connections of the AS-
Interface slave and if necessary
replace the AS-Interface slave.
The “CER” LED and the LEDs of
active AS-Interface slaves flicker
irregularly. An extender is installed in the AS-
Interface with “Line1” and “Line2”
connections reversed. Correct the connections to the ex-
tender.