Interface In The User Program - Siemens SIMATIC S7-CPs Manual

8.12

Interface in the user program

8.12.1 FC call interface
Change call parameters only after job confirmation
Notice
After the job is triggered, you may only change the call parameters on the FC call
interface of the FCs AG_SEND / AG_LSEND / AG_SSEND or AG_RECV /
AG_LRECV / AG_SRECV again after the FC has confirmed execution of the job
with DONE=1 or with ERROR=1.
If this is ignored, it is possible that the execution of the job will be aborted with an
error and resources could be permanently occupied on the CPU.
8.12.2 Programmed communication connections with FB55
IP_CONFIG
Downloading the configuration using FB55
FB55 allows program-controlled transfer of the configuration data.
Note
If the CP is in PG STOP mode, the configuration is downloaded using FB55; the
CP then changes automatically to RUN.
CP 443-1 for Industrial Ethernet / Manual Part B
Release 07/2010
C79000-G8976-C223−06
8 Further Notes on Operation
B−47