Siemens SIMATIC S7-1500 System Manual page 210

Configuring
9.11 Configuring the clock system
5. Configure the PROFIdrive frames for the drive axes, for example, frame 105.
Note
If you use a PROFINET IO drive system other than SINAMICS S120, adding and configuring
may differ from the description in certain respects. The frame is automatically preassigned in
line with the drive system.
Activating isochronous mode in the device configuration
You can operate PROFINET drives in isochronous or non-isochronous mode. Isochronous
mode, however, increases the quality of the position control of the drive and is therefore
recommended for drives such as SINAMICS S120.
Proceed as follows to activate isochronous mode for the drive:
1. Select the device view of the drive system.
2. In the properties window, select the tab "PROFINET Interface [X150]" > "Advanced options" >
"Isochronous mode".
3. Select the "Isochronous mode" check box.
4. In the properties window, select the tab "PROFINET Interface [150]" > "Advanced options" >
"Real-time settings" > "Synchronization".
5. Select "IRT" as the RT class.
Note
If you have configured a PROFIdrive frame at the drive that requires isochronous mode,
STEP 7 automatically sets "Isochronous mode" and the RT class "IRT".
Configuring the CPU as sync master and setting the send clock
1. Select the device view of the CPU.
2. In the properties window, select the tab "PROFINET interface [X150]" > "Advanced options" >
"Real-time settings" > "Synchronization".
3. Select "IRT" as the RT class if it has not already been set automatically.
4. Select "Sync master" from the "Synchronization role" drop-down list.
5. Click the "Domain settings" button.
6. Set the required send clock.
Selecting the drive in the configuration of the technology object
1. Add a new axis technology object.
2. Open the configuration "Hardware interface" > "Drive".
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SIMATIC Drive Controller
System Manual, 11/2023, A5E46600094-AD