Siemens DP/AS-Interface Link 20E Manual page 137

Table 5-1 , continued
Error
Automatic address programming
is unsuccessful although the
"AUP" display is lit.
The "CER" LED and the LEDs of
active AS-i slaves flicker irregu-
larly.
-
DP/AS-Interface Link 20E
Release 11/2002
C79000-G8976-C138–04
Possible Cause
The DP/AS-i Link 20E module has
detected unconfigured AS-i sla-
ves.
The configuration data (I/O confi-
guration, ID code) of the replaced
AS-i slave do not match the va-
lues of the original slave.
The replaced AS-i slave does not
have the address "ZERO".
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.
Dealing with Problems/Error Displays
Remedy
Remove the unconfigured AS-i
slaves from the AS-i cable.
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
slave with a different type, assign
the address with the addressing
unit and reconfigure the DP/AS-
i Link 20E module (with the SET
button).
Set the address of the replaced
slave with the addressing unit.
Check the connections of the
slave and if necessary replace the
slave.
Correct the connections on the
extender.
137