SAIA PCD2.M48X Analog module sequence

   As described above, the background diagnosis of AC 110 automatically detects errors on CI626/CI627 during operation and makes error messages visible in the error report which is provided by Advant Station 100 Series engineering station. A list of all possible error messages for the CI626/CI627 is shown in CI626/CI627/CI630/CI631 Status Information on page 99. Device, system and process errors are summary error messages. Detailed information, for example the reasons described below, is readable by using diagnosis tool for Advant Controller 110/160. Device errors are in general fatal module errors which lead to restarts of the communication interface and make an exchange of the module necessary. There are no device errors defined for DSPs.

System errors are severe errors

 that - in contrast to device errors - do not lead to restarts of the communication interface. Process errors in general are a sign for a wrong configuration of the Advant Fieldbus 100 and do also not lead to restarts. Both, system and process errors, may refer to the communication interface itself or to DSPs, configured by the user. The following table describes some reasons for system and process errors and actions for removing those errors. Errors referring to DSPs are explained in Advant Controller 110/160 and Advant Controller 70 on page 229.Define one ’MASTER’ for time synchronization in the network or define no time synchronization for all slaves.Check for CI625 that have enabled bus administrator functions. In networks with CI626/CI627 and CI625 only CI626/CI627 are to be bus administrators.

Redundant line failed

 One of the communication lines failed. Check the lines. In case of not connected but configured redundant line, either connect this line or configure a nonredundant network at CI626/CI627 data base element.PM810 cannot detect many of the errors that CI520/CI522 or CI626/CI627 detects because it is only a slave on the Advant Fieldbus 100. Moreover the communication interface of the PM810 cannot be separately restarted, if a serious error occurs. PM810 then continues execution without Advant Fieldbus 100 data transfer.