Output Description

DONE   BOOL \    (done)

Output 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. For that reason, the 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   BOOL \    (error)

Output 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   WORD \   (error \ number)

Output ERNO provides an error identifier if an invalid value was applied to an input or if an error occurred during job processing. ERNO always has to be considered together with the outputs DONE and ERR. The value output at ERNO is only valid if DONE is TRUE and ERR is TRUE. The error messages Error Messages of the Function Block Libraries encoding at output ERNO is explained at the beginning of the Function Block description.

STATE   BYTE \    (state)

STATE outputs the current status of the read error. The error status is a combination of the states “Error has come”, “Error has gone” and “Error has been acknowledged”. The following status numbers are possible:

State	Error	come	gone	acknowledged
16#02		x
16#04			x
16#06		x	x
16#08				x
16#0A		x		x
16#0C			x	x
16#0E		x	x	x
16#F0	Alle errors read or no error available

COMP   BYTE \    (component)

“COMP” outputs the component number the read error is assigned to.

DEVICE   BYTE \    (device)

“DEVICE” outputs the device number the read error is assigned to.

MODULE   BYTE \    (module)

“MODULE” outputs the module the read error is assigned to.

CHANNEL   BYTE \    (channel)

“CHANNEL” outputs the channel the read error is assigned to.

ERROR   BYTE \    (error)

“ERROR” outputs the error number of the read error.

T_COME   DT \    (time \ come)

T_COME outputs the time stamp, when the read error occurred (“has come”). If no time stamp is available for the error status “come” (see also the description of output STATE), no value is written to this output. In this case, the output value remains at the default value DT#1970-01-01-00:00.

T_GO   DT \    (time \ go)

T_GO outputs the time stamp, when the read error “has gone”. If no time stamp is available for the error status “gone” (see also the description of output STATE), no value is written to this output. In this case, the output value remains at the default value DT#1970-01-01-00:00.

T_ACK   DT \    (time \ acknowledge)

T_ACK outputs the time stamp, when the read error was “acknowledged”. If no time stamp is available for the error status “acknowledged” (see also the description of output STATE), no value is written to this output. In this case, the output value remains at the default value DT#1970-01-01-00:00.

CODE   DWORD \    (code)

CODE outputs the code number of the read error. The structure of the error encoding is as follows: