Programming FCs (Functions) and FBs for S7 Ethernet CPs

5.3.2FC6 AG_RECV / FC60 AG_LRECV

Meaning of the Block

The AG_RECV / AG_LRECV function receives the data transferred on a configured connection from the Ethernet CP.

The data area specified for the receive data can be a process image area, a bit address area or a data block area.

Error-free execution is indicated when the data could be received from the Ethernet CP.

Note:

Unless otherwise stated, all the following information applies to both the FCs AG_RECV and AG_LRECV.

Call

Call interface in LAD representation

AG_RECV / AG_LRECV

INT WORD ANY

NDR

IDERROR

LADDR STATUS

RECV LEN

BOOL BOOL WORD INT

Example in STL representation

STL

 

 

Explanation

 

 

 

 

call fc 6

 

//AG_RECV/AG_LRECV block call

ID

:=

MW 40

//Connection

ID acc. to configuration

LADDR

:=

W#16#0100

//=LADDR 256

dec. in hw configuration

RECV

:=

P#M 0.0 BYTE 100

//Buffer for

received data

NDR

:=

DB 110.DBX 0.6

//Receive code

ERROR

:=

DB 110.DBX 0.7

//Execution code

STATUS

:=

DB 110.DBW 2

//Error code

 

LEN

:=

DB 110.DBW 4

//Status code

 

 

 

 

 

 

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Siemens S7 appendix 2 FC6 Agrecv / FC60 Aglrecv, Agrecv / Aglrecv

S7 specifications

The Siemens S7 series represents a cornerstone in the realm of programmable logic controllers (PLCs), developed by Siemens, a leading company in industrial automation. Widely used across various industries, the S7 series offers robust solutions for controlling machinery and processes, thanks to its reliable performance, flexibility, and scalable architecture.

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