Output Description

DONE

Data_Type	Default_Value	Range	Unit
BOOL	-	-	-

Output indicates the processing state of the function block. After completion or abortion of processing (due to an error), DONE is set to TRUE for one cycle. This output always has to be considered together with output ERR. If ERR is TRUE, an error occurred. In this case, the error number can be read at output ERNO.

ERR

Data_Type	Default_Value	Range	Unit
BOOL	-	TRUE / FALSE	-

Output ERR indicates whether an error occurred during Function Block execution.

It is only valid when DONE is TRUE. The kind of occurred error is specified by the error identifier at output ERNO.

ERNO

Data_Type	Default_Value	Range	Unit
WORD	-	0 … 65535	-

At output ERNO the identifier of an occurred error is provided. It is only valid when DONE and ERR is TRUE (see, error messages): Error Messages of the Function Block Libraries

NUM_ACT_SLV (number \ of active \ slaves)

Data_Type	Default_Value	Range	Unit
DWORD	0	0-256	-

The variable NUM_ACT_SLV contains the number of active slaves. Active slaves exchange cyclic data with the master.

NUM_CONF_SLV (number \ of configured \ slaves)

Data_Type	Default_Value	Range	Unit
DWORD	0	0-256	-

NUM_CONF_SLV contains the number of configured slaves evaluated in the configuration file.