Siemens SIMATIC PROFINET Function Manual page 165

3. Navigate to the device of the required sync domain in the Inspector window.
Figure 5-48 IRT configuring sync domain
4. Enter all necessary settings in the tables:
– Select an IO system.
– Set the synchronization role "sync master" for the IO controller.
– Set the RT class for the IO devices to "IRT". The IO devices will then automatically be
You can now load the configuration to the relevant devices with PROFINET IRT.
PROFINET with STEP 7 V14
Function Manual, 09/2016, A5E03444486-AG
assigned the synchronization role "sync slave".
Functions
5.5 Real-time communication
165