Output Description

DONE

Data_Type	Default_Value	Range	Unit
BOOL	-	TRUE / FALSE	-

Output DONE indicates the state of execution.

It has the value TRUE when the execution is finished and the outputs are valid. When DONE becomes FALSE other outputs are not valid any more.

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

IP_ADR   DWORD \    (IPaddress)

Output IP_ADR displays the IP address of the sending device which transmitted the received data package. Each byte in IP_ADR represents one octet of the address.

Example:

IP address 192.15.24.2,

IP_ADR (hex) 16#C00F1802,

IP_ADR (dec) 3222214658

LEN   WORD \    (length)

Output LEN displays the length of the received data package in bytes.

LEV_BY   WORD \    (level \ in bytes)

Output LEV_BY displays the filling level of the receive buffer in bytes. The displayed value is updated as long as EN is TRUE and applies to the input values read with the rising edge at input EN.

One data package occupies output LEN + 6 bytes in the receive buffer (4 bytes for the IP address of the sending device, 2 bytes for the specification of the length).

LEV_DS   WORD \    (level \ in data \ sets)

Output LEV_DS displays the filling level of the receive buffer in data records. The displayed value is updated as long as EN is TRUE and applies to the input values read with the rising edge at input EN.