Siemens SIMATIC S5-100U System Manual page 221

S5-100U
"DO" Operation
Table 8-25 and the example that follows explain the processing operation.
Operation Operand
DO =
Formal operands
1
As actual operands, function blocks cannot have block parameters.
Example:
Function Block Call
STL
:JU FB 35
NAME :DO
D5 : DB 5
DW2 : DW 2
D6 : DB 6
DW1 : DW 1
Q4 : QW 4
MOT5 : FB 36
:BE
EWA 4NEB 812 6120-02b
Table 8-25. "DO" Operation
Process formal operand
The substituted blocks are called unconditionally.
Actual operands permitted
1
DB, PB, SB, FB
Program in Function Block FB35
:DO =D5
:L =DW2
:DO =D6
:T =DW1
:T =Q4
:DO =MOT5
:BE
STEP 5 Operations
Meaning
Parameter
type
B
Executed Program
:C DB
:L DW
:C DB
:T DW
:T QW
:JU FB
:BE
Data
type
5
2
6
1
4
36
8-63