Siemens NCM S7 - Page 159

Programming FCs (Functions) and FBs for S7 Ethernet CPs
159
SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
Example of AG_SEND
Below you will find an executable example of an FC5 (AG_SEND) call and
parameter evaluation.
The OB100 listed below belongs to the FC100 selected here in which the send call
takes place; OB100 sets the ACT bit correctly when the CPU starts up.
To function correctly, a DB100 with a size of at least 240 bytes must be loaded.
The program requires a CP at address 256 and a configured connection of the
type ISO Transport / ISO-on-TCP or TCP with ID=1 (please adapt your
configuration where necessary !).
//––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
FUNCTION FC 100: VOID
TITLE = SENDE_DEMO
AUTHOR : Tester
FAMILY : S7300
NAME : FC5_Demo
VERSION : 1.0
//––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
BEGIN
CALL FC 5 (
ACT := M100.0,
ID := 1,
LADDR := W#16#100,
SEND := P#DB100.dbx0.0 BYTE 240,
LEN := 240,
DONE := M100.1,
ERROR := M100.2,
STATUS := MW102 );
//––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
R M100.0;
SET;
A M100.1;
JC done;
SET;
A M100.2;
JC err;
//
//
//
//
//
//
//
Reset parameter ACT for all further FC5 calls;
Test whether DONE = TRUE
Test whether ERROR = TRUE
//––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
BEU; //
//
Neither DONE nor ERROR is set, the job is
still running.
//––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
done S M100.0;
BEU;
//
//
Job completed without error. Set ACT = TRUE so
that the following call can trigger the new
job.
//–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––