Specifications

Execution Times for STL Instructions
F-4
S7-200 Programmable Controller System Manual
C79000-G7076-C233-01
Table F-4 Execution Times for the STL Instructions (in µs)
Instruction
S7-200 CPU
(in µs)
Description
CALL With no parameters:
Execution time
With parameters:
Total execution time =
Basic time + Σ (input operand handling time)
Basic execution time
Input operand handling time (bit operand)
Input operand handling time (byte operand)
Input operand handling time (word operand)
Input operand handling time (Dword operand)
15
32
23
21
24
27
CRET Total execution time =
Basic time + Σ (output operand handling time)
Basic execution time
Output operand handling time (bit operand)
Output operand handling time (byte operand)
Output operand handing time (word operand)
Output operand handling time (Dword operand)
13
21
14
18
20
CRETI Basic execution time 23
CTD Basic execution time on transition of count input
Basic execution time otherwise
48
36
CTU Basic execution time on transition of count input
Basic execution time otherwise
53
35
CTUD Basic execution time on transition of count input
Basic execution time otherwise
64
45
DECB Basic execution time 30
DECD Basic execution time 42
DECO Basic execution time 36
DECW Basic execution time 37
DISI Basic execution time 18
DIV Basic execution time 119
DTCH Basic execution time 18
DTR Basic execution time
Maximum execution time
60
70
ED Basic execution time 15
ENCO Minimum execution time
Maximum execution time
39
43
END Basic execution time 0.9
ENI Basic execution time 53
EU Basic execution time 15
FIFO Total = Basic time + (LM)<(Length)
Basic execution time
Length multiplier (LM)
109
14