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Data transfer to the PLC
7.2 Control program example
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
157
7.2.4
Read data sets
General
Data sets are used for transferring larger data volumes outside the process image and they
are executed using the standard function SFC59, "RD_REC".
Step 1 Call block
To call the block, type in the line "Call SFC59" with return in program code.
Note
If block SFC59 is not yet included in the block folder, it is automatically copied from the
standard library of STEP7.
Help via "F1" when the cursor is in the line "CALL RD_REC".
Network 6
Intermediate result after entering "Call SFC59"
CALL "RD_REC"
REQ :=
IOID :=
LADDR :=
RECNUM :=
RET_VAL:=
BUSY :=
RECORD :=