Output Description

DONE

Data_Type	Default_Value	Range	Unit
BOOL	-	-	-

DONE 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 (error)

Data_Type	Default_Value	Range	Unit
BOOL	-	-	-

ERR indicates whether an error occurred during the processing of the function block. This output always has to be considered together with output DONE. If DONE is TRUE and ERR is TRUE, an error occurred. In this case, the error number can be read 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

MAX_LIM (maximum \ limit)

Data_Type	Default_Value	Range	Unit
BOOL	-	-	-

In the infinite counter operating mode (endless mode), MAX_LIM indicates whether the actual counter value is higher than the value set at input LIM_MAX.

In the limiting counter operating mode (limit mode), output MAX_LIM is FALSE.

MIN_LIM (minimum \ limit)

Data_Type	Default_Value	Range	Unit
BOOL	-	-	-

In the infinite counter operating mode (endless mode), output MIN_LIM indicates whether the actual counter value is lower than the value set at input LIM_MIN.

In the limiting counter operating mode (limit mode), output MIN_LIM is FALSE.

CNT_ACT (counter actual)

Data_Type	Default_Value	Range	Unit
DWORD	-	-	-

CNT_ACT displays the actual counter value of the count-up counter.