Response times
5.2 Response times for the ET 200S
IM151-1 FO STANDARD interface module (6ES7151-1AB05-0AB0)
60
Manual, 02/2010, A5E01075965-03
5.2
Response times for the ET 200S
Calculating the response time with the IM151-1 FO STANDARD
The following equation enables you to make an approximate calculation of the ET 200S
response time:
Response time [μs]* = 28 ·
m + 9 · b + 350
Explanation of the parameters:
●
m: Sum total of all configured modules
●
b: Sum total of all input and output bytes (without bit granular modules)
Example for calculating the ET 200S response time (as of 6ES7151-1AB05-0AB0)
'6
'6
'6
30($&
30('&9
','&9
','&9
'2'&9
'2'&9
'2'&9
'2'&9
30'
','&9
'2'&9
'2'&9
$,867
$,867
$2,67
$2,67
52
30('&9
,0
Figure 5-2
Example setup for calculating the response time with the IM151-1 FO STANDARD
Calculation method:
m = 21; b = 16
Response time = 28 ·
m + 9 · b + 350
Response time = 28 · 21 +9 · 16 + 350
Response time = 1082 μs
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