Siemens MOBY FC 56, Technical Description

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Error Messages and Trouble-Shooting
9-2
FC 56
J31069-D0155-U001-A0-7618
9.1 General Errors
Programmable controller assumes STOP.
S A slave has failed, and OB 86 is not programmed.
S A slave has failed, and OB 122 is not programmed.
This error does not occur until the FC 56 is called.
S The pointers Params_DB, command_DB or DAT_DB do not exist or are
pointing to a nonexistent address area.
9.2 Error Classes
An error state always exists on the FC 56 when the “error” variable is set for a
channel. When this happens, the exact cause of the error can be determined with
the “error_code” variables.
The “error_code” variable is a double word consisting of 4 ASCII characters. The
first character is an alphanumeric character identifying the error class.
Table 9-1 Error classes of the FC 56
Error Class Meaning
Axxx
Protocol error
Bxxx SLG error
Cxxx MDS error
Dxxx Job-related errors
Exxx Directory-related errors
Fxxx File-related errors
Hxxx Error messages of the FC 56
Type H8xx messages belong to a special class of FC 56 errors. These
errors are reported by the communication blocks of the controller.
Kxxx Errors in the parameterization of QUEUE-READ and QUEUE-WRITE