Setting The Sampling Times - Siemens Sinamics S110 Function Manual

Safety Integrated Functions
8.7 Commissioning
Standard commissioning of the safety functions
1. A commissioned project that has been uploaded to STARTER can be transferred to
2. If the source and target devices have different software versions, the reference
3. Once the project has been downloaded to the target device, an acceptance must be
8.7.2.2

Setting the sampling times

Terminology
The software functions installed in the system are executed cyclically at different sampling
times.
Safety functions are executed within the monitoring clock cycle (p9300/p9500).
Communication on PROFIBUS is handled cyclically by means of the communication clock
cycle.
During the PROFIsafe scan cycle, the PROFIsafe telegrams issued by the master are
evaluated.
Rules for setting the sampling times
● The monitoring clock cycle (p9300/p9500) can be set between 500 μs to 25 ms.
● The monitoring cycle (p9300/p9500) must be an integer multiple of the actual value
Overview of important parameters (see SINAMICS S110 List Manual)
● p9300 SI motion monitoring clock cycle (Power Module)
● p9311 SI motion clock cycle actual value sensing (Power Module)
● p9500 SI motion monitoring clock cycle (Control Unit)
● p9511 SI Motion clock cycle actual value sensing (Control Unit)
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another drive unit including the existing safety parameterization.
checksums (p9799, p9899) may have to be adapted. This is indicated by the faults
F01650 (fault value: 1000) and F30650 (fault value: 1000).
carried out. This is indicated by fault F01650 (fault value: 2004).
However, the calculation time required for the Extended Functions in the Control Unit
depends on the monitoring clock cycle, that is, shorter clock cycles extend the calculation
time. The availability of a specific monitoring clock cycle therefore depends on calculation
time resources of the Control Unit.
Calculation time resources on the Control Unit are affected primarily by the enabled
extended functions and the selected technological functions.
update clock cycle (p9311/p9511).
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
Drive functions