Siemens SIMATIC S5 Manual page 160

STEP 5 Operations
DO operation
Table 3-25 and the example that follows explain the processing operation.
Operation Operand
B =
Formal operand
1 As actual operands, function blocks cannot have block parameters.
Example:
Function Block Call
STL
:JU FB 35
NAME :PROCES
D 5 : DB 5
DW 2 : DW 2
D 6 : DB 6
DW 1 : DW 1
Q 4 : QW 4
MOT 5 : FB 36
:BE
3-64
Table 3-25. DO Operation
Process formal operand.
The substituted blocks are called unconditionally.
Actual Operands Permitted
DB, PB, SB, FB
1
Program in Function Block FB35
:DO =D
:L =DW
:DO =D
:T =DW
:T =Q
:DO =MOT
:BE
Meaning
Parameter
Type
B
Executed Program
:
5 C
2 :L
6 :C
1 :T
4 :T
5 :JU
:BE
EWA 4NEB 811 6149-02
S5-115F Manual
Data
Type
DB 5
DW 2
DB 6
DW 1
QW 4
FB 36