Detailed Description
2.12 Block descriptions
PLC Basic Program Solution Line (P3 sl)
2-104 Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Call example
Writing of three channel-specific machine data of channel 1:
Select the three data with NC VAR selector and store in the file DB120.VAR:
Area Block Name Type Byte S7 Name
C[1] RP rpa[5] double 4 rpa_5C1RP
C[1] RP rpa[11] double 4 rpa_11C1RP
C[1] RP rpa[14) double 4 rpa_14C1RP
Entry NCVAR for DB 120 with the S7 SYMBOL Editor:
Symbol Operand Data type
NCVAR DB120 DB120
File DB120.AWL must be compiled and transferred to the PLC.
Call and parameterization of FB 3 with instance DB 111:
DATA_BLOCK DB 111 //Unassigned user DB, as instance
for FB 3
FB 3
BEGIN
Function FC "VariablenCall": VOID
END_DATA_BLOCK
U I 7.7; //Unassigned machine control panel
key
S M 100.0; //Activate req.
U M 100.1; //Done completed message
R M 100.0; //Terminate job
U I 7.6; //Manual error acknowledgment
U M 102.0; //Error pending
R M 100.0; //Terminate job
Call fb 3, db 111(
Req := M 100.0,
NumVar := 3, //Write 3
variables
Addr1 := NCVAR.rpa_5C1RP,
Addr2 := NCVAR.rpa_11C1RP,
Addr3 := NCVAR.rpa_14C1RP,
Error :=
M102.0,
Done := M100.1,
State := MW104,
SD1 := P#DB99.DBX0.0 REAL 1,
SD2 := P#DB99.DBX4.0 REAL 1,
SD3 := P#M110.0 REAL 1);
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