Siemens SIMATIC S7-200 System Manual page 571

Execution Times for the STL Instructions (in µs) (continued)
Table F-4
Instruction
ORB
ORD
ORW
OW < =, =, >=, >, <, <>
PID
PLS
R
RCV
RET
RETI
RI
RLB
S7-200 Programmable Controller System Manual
A5E00066097-02
Description
Basic execution time
Basic execution time
Basic execution time
Basic execution time
Basic execution time
Adder to recalculate (K T
c
PID calculation. Recalculation occurs if the value of K
or T has changed from the previous execution of this
s
instruction, or on a transition to auto control.
Basic execution time:
PWM
PTO single segment
PTO multiple segment
For length=1 and specified as a constant (e.g. R V0.2,1)
Execution time for operand = C
Execution time for operand = T
Execution time for all other operands
Otherwise,
Total execution time=Basic execution time +(Length LM)
Basic execution time for operand = C, T
Basic execution time for all other operands
Length multiplier (LM) for operand = C
Length multiplier (LM) for operand = T
Length multiplier (LM) for all other operands
If the length is stored in a variable instead of being
specified as a constant, increase the basic execution time
by adding:
Basic execution time
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)
Basic execution time
Total = Basic time + (Length LM)
Basic execution time
Length multiplier (local output)
Length multiplier (expansion output)
If the length is stored in a variable instead of being a
constant, increase the basic execution time by adding:
Total = Basic time + (Length LM)
Basic execution time
Length multiplier (LM)
Execution Times for STL Instructions
/T ) and (K T /T ) prior to the
s i c d s
c
S7-200 CPU
(in µs)
37
55
48
45
750
1000
, T , T ,
s i
57
67
92
17
24
5
19
28
8.6
16.5
0.9
29
80
13
21
14
18
20
23
18
22
32
30
42
0.6
F-7