Siemens SINUMERIK 840D sl Configuration Manual page 98

Configuring networks
4.5 Configuring PROFINET IO with IRT
3. In the "IO devices" table, define the synchronization roles and RT classes of all devices of
the sync domain:
– Define the role of the PLC by opening the dropdown list in the "Synchronization role"
Figure 4-9
– Check whether the synchronization role is set to "Sync slave" for all desired devices.
4. In the "Sync-Domain_1" section, enter a value in the "send clock" dropdown list
appropriate for the "Equidistant DP cycle" setting.
Note
The send clock of the sync domain and the DP cycle for SINAMICS Integrated must
match!
If you have not set the same values for these settings, an error message will be issued
when the configuration is compiled. In this case, match the values and compile the
project again.
The "Equidistance DP cycle" setting is contained under "Equidistance" in the properties of
the PROFIBUS Integrated subsystem. (default setting: 2 ms; minimum value: Version-
dependent)
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column and selecting "Sync master".
Selecting the sync master
See also: Configuring PROFINET IO IRT devices (Page 92)
SINUMERIK STEP 7 Toolbox V14 SP1
Configuration Manual, 05/2017, A5E41846325