Output Description

DONE   BOOL \   (done)

The output variable DONE shows the processing state of the Function Block. It shows TRUE when the processing ended or an error took place. This variable DONE should be checked together with the variable ERR. If DONE and ERR are set to TRUE then the output ERNO should be checked to see which error occurred.

ERR   BOOL \   (error)

ERR shows TRUE if the Function Block was terminated as a consequence of an error, or FALSE if it ended normally.

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

RDY   BOOL \   (ready)

A command has been received if RDY = TRUE.

OV   BOOL \    (overrun)

Overrun was detected if the output OV = TRUE.

The output OV indicates by changing from FALSE to TRUE, that the transmission requests are coming too fast, i.e. the task cycle time is configured as too fast.

The output always has to be considered together with output RDY.

OPR   DINT \   (opr)

Preset of discrete value. Output OPR receives the current discrete value on reset.

The output always has to be considered together with output RDY.

OST   DINT \   (ost)

Relocated discrete value. Output OST receives the current discrete value on relocation.

The output always has to be considered together with output RDY.

QRS   BOOL \   (qrs)

The output QRS indicates a reset of the discrete value by changing from FALSE to TRUE.

The output always has to be considered together with output RDY.

QST   BOOL \   (qst)

Relocate discrete value.

The output QRS indicates a relocation of the discrete value by changing from FALSE to TRUE.

The output always has to be considered together with output RDY.