Siemens SINUMERIK 828D Function Manual page 1085

CALL FB 2, DB 110 (
Req :=
NumVar :=
Addr1 :=
Line1 :
Addr2 :=
Line2 .
RD1 :=
RD2 :=
Here the call still remaining in OB 1 is displayed:
CALL FB 2, DB 110 (
Req :=
Error :=
NDR :=
State :=
Note
Owing to this measure, a shorter cycle time is achieved in OB 1, because the static
parameter values need not be copied in the instance DB in each OB-1 cycle.
The savings of this variant:
The cyclic copying effort of 3 integer values and 4 ANY parameters with respect to the instance DB, which results
from 3 time loading of a constant in the instance data block. In case of each ANY transfer, constants are loaded
in the data block 4 times with subsequent transfer.
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
FALSE,
2,
NCVAR.C1_RP_rpa0_0
W#16#1
NCVAR.C1_RP_rpa0_0
W#16#2
P#M 4.0 REAL 1,
P#M 24.0 REAL 1,
M0.0,
M1.0,
M1.1,
MW 2,
P3: Basic PLC Program for SINUMERIK 840D sl
13.15 Programming tips with STEP 7
//Read 2 variables
1085