Siemens SIMATIC S7-300 Product Information page 155

You can determine the response times for your configuration using the following tables.
The values in the tables are based on the set system clocks. By using the actual times,
you can calculate the response time in milliseconds.
The following abbreviations are used in the tables:
IS
DP
MC_MeasuringInput
-> ready to detect the measuring edge
Detection of the measuring edge
-> result in the Technology CPU for further processing
Total
-> minimum time between 2 measurements*)
*) Any system limitations must also be considered.
MC_MeasuringInput
-> ready to evaluate the measuring range (start of the measuring window)
Start of the measuring window on the axis is reached (mechanical)
-> ready to detect the measuring edge
Detection of the measuring edge
-> result in the Technology CPU for further processing
Total
-> minimum time between 2 measurements*)
*) Any system limitations must also be considered.
MC_MeasuringInput
-> ready to evaluate the measuring range (start of the
measuring window)
Start of the measuring window on the axis is reached (mechanical)
-> ready to detect the measuring edge
Start of the measuring window on the axis is reached (mechanical)
-> reset: "Ready to detect the measuring edge"
Total
-> minimum time between 2 measurements*)
*) Any system limitations must also be considered.
Connection of the SINAMICS S120 to the Technology CPU
Product Information, 09/2011, A5E00480378-04
Description
Interpolator or position-control cycle
Cycle time on the PROFIBUS DP
Measuring without measuring window
Measuring with measuring window: Measuring edge is detected in the window
Measuring with measuring window: No measuring edge in the window
5.6 Measuring Function
Supplementary information
Can be selected during the configuring of the
measuring input
Can be set in HW Config
Expert Functions
3 (IS) + 7 (DP)
2 (IS) + 10 (DP)
5 (IS) + 17 (DP)
2 (IS)
2 (IS) + 7 (DP)
2 (IS) + 10 (DP)
5 (IS) + 17 (DP)
2 (IS)
2 (IS) + 7 (DP)
2 (IS) + 7 (DP)
7 (IS) + 24 (DP)
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