Programming FCs (Functions) and FBs for S7 Ethernet CPs

6.5FB55 IP_CONFIG for Programmed Communication Connections

Meaning of the Block

Connections can be specified in a DB (configuration DB) and transferred to the CP with an FB.

You can use this variant of programmed communication connections as an alternative to connection configuration with STEP 7.

Depending on the size of the configuration DB, the data may be transferred to the CP in several segments. This means that the FB must continue to be called until the FB signals complete transfer by setting the DONE bit to 1.

Call

Representation ...

IP_CONFIG

INT

 

 

ACT

DONE

 

 

 

 

 

 

WORD

 

 

 

LADDR

ERROR

 

 

 

 

 

 

 

ANY

 

 

 

CONF_DB STATUS

 

 

 

 

 

 

 

INT

 

 

 

LEN

EXT_STATUS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BOOL BOOL WORD WORD

Example in STL representation

STL

 

 

Explanation

 

 

 

call fb 55

 

//IP_CONFIG block call

ACT

:=

M 10.0

//Job triggered by memory bit<

LADDR

:=

W#16#0100

//=LADDR 256 dec. in hardware configuration

CONF_DB :=

P#db99.dbx10.0 byte 240

//Data block with connection data

LEN

:=

MW 14

//Length info for connection data

DONE

:=

M 10.1

//Executed code

ERROR

:=

M 10.2

//Error code

STATUS

:=

MW 16

//Status code

EXT_STATUS :=

MW 18

//Cause of error in connection data

 

 

 

 

SIMATIC NET NCM S7 for Industrial Ethernet

197

Release 6/2003

C79000–G8976–C129–07

Page 197
Image 197
Siemens NCM S7 appendix FB55 Ipconfig for Programmed Communication Connections

NCM S7 specifications

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