Siemens Simatic S7-1500 Function Manual page 33

Cyclic program execution
3.2 Cycle time
1510SP(F)-1 PN
Bit operations, 72 ns
typ.
Word operations, 86 ns
typ.
Fixed-point arith- 115 ns
metic, typ.
Floating-point 461 ns
arithmetic, typ.
Bit operations, typ.
Word operations, typ.
Fixed-point arithmetic, typ.
Floating-point arithmetic, typ.
Note
Instruction "RUNTIME"
You can measure the runtimes of program sequences with the instruction "RUNTIME".
32
ET 200SP
1512SP(F)-1 PN
48 ns
58 ns
77 ns
307 ns
1516pro(F)-2 PN
10 ns
12 ns
16 ns
64 ns
1515SP(F)-PC
30 ns
36 ns
48 ns
192 ns
ET 200pro
Cycle and response times
Function Manual, 10/2018, A5E03461504-AD