S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD
STL
(not S7-1200)
SCL
✔ ✔ ✔
floating-point number into physical
units between a low limit and a high limit and
convert it into an integer (unscaling).
Program control operations
Branch conditionally multiple times
Run in counting loop with step width
Run if condition is met, the CPU checks the
condition at the start of the loop
Run if condition is not met.
The CPU checks the condition at the end of the
loop, i.e. the CPU runs the loop at least once.