
Dealing with Problems / Error Displays
Table 
| Error | Possible Cause | 
| 
 | 
 | 
Remedy
Automatic address programming is unsuccessful although the ªAUPº display is lit.
The configuration data (I/O confi- guration, ID codes) of the repla- ced 
The replaced 
Check whether the correct ªrepla- cement slaveº was used. Compare the information from the manufacturer about configuration data.
If you want to replace the original 
Set the address of the replaced 
The ªCERº LED and the LEDs of active 
| Replaced  | Check the connections of the AS- | 
| not correctly connected or is de- | Interface slave and if necessary | 
| fective. | replace the  | 
| 
 | 
 | 
| An extender is installed in the AS- | Correct the connections to the ex- | 
| Interface with ªLine1º and ªLine2ºtender. | |
| connections reversed. | 
 | 
| 
 | 
 | 
| SIMATIC NET CP  | |
