Fig. 169 Setting The Sampling Rate In Twincat - Beckhoff EL3632 Documentation

Commissioning
4. "Sync Unit Cycle Time" is indicated; on the basis of the above table...
5. Select the oversampling factor. The "Sample Cycle Time (µs)" indicates the reciprocal value of the
sampling rate. The SM automatically activates all process data entries thereafter.
Fig. 169: Setting the sampling rate in TwinCAT
Loading the configuration data (ESI) from the terminal
If the online description is used, the DC/Oversampling dialog is not displayed in the TwinCAT Sys-
tem Manager.
To use the dialog, copy the XML Description into the designated TwinCAT/Io/EtherCAT folder be-
fore the TwinCAT System Manager is started.
Application with external masters
The oversampling function can also be activated manually: The oversampling factor should be specified
depending on the required sampling rate and cycle time.
For each required channel the status word and the corresponding number of samples have to be entered in
object 0x1C13. Activate PDOs "Next Sync1 Time" and/or "Sample Counter", if necessary. To this end,
initially set subindex 0 to 0 and at the end to the number of entered values.
The sync interrupts should be parameterized as follows: Sync0: CycleTime/Oversampling Factor, set Enable;
Sync1 Cycle Unit Cycle, set Enable.
The master must support Distributed Clocks.
Selection of the process data
No longer necessary with TwinCAT.
128 Version: 2.8 EL3632