Siemens SIMATIC S7 - Page 343

Program instructions
7.13 Program control
S7-200 SMART
System Manual, V2.3, 07/2017, A5E03822230-AF
343
Example: FOR-NEXT loop
LAD
STL
When I2.0 is ON, the outside
loop (Network 1 - 4) is exe-
cuted 100 times.
Network 1
LD I2.0
FOR VW100, +1,
+100
The inside loop (Network 2 -
3) is executed twice for each
execution of the outside loop
when I2.1 is on.
Network 2
LD I2.1
FOR VW225, +1, +2
End of inside loop
Network 3
NEXT
End of outside loop
Network 4
NEXT