Configuring The Profibus Interface As Isochronous - Siemens SIMATIC S7-1500 System Manual

3. Select the "PROFIdrive" entry from the "Drive type" drop-down list.
4. Select a drive axis of the PROFINET drive unit from the "Drive" list.
Only drives for which you have configured a suitable PROFIdrive frame are available for
selection. You can find out which PROFIdrive frames are supported by the SIMATIC Drive
Controller in the S7-1500T Motion Control function manuals
(https://support.industry.siemens.com/cs/ww/en/view/109751049).
Using the "Device configuration" button, you can switch to the drive device view, for
example, to configure drives or set other PROFIdrive frames (for example 39x frame for
the X122/X132 IOs of a CU320-2).
Setting the clock system
You have configured an external drive as isochronous on PROFINET using the example of the
SINAMICS S120 CU320-2 PN. Next, set the clock system.
• Choose between independent and coupled isochronous mode.
• Set the required send clock.
• Assign the "MC Servo" OB the clock system of the PROFINET interface X150.
You can find more information in Setting the clock system (Page 210).
9.11.5

Configuring the PROFIBUS interface as isochronous

You can find out how to configure isochronous mode for distributed I/O on the PROFIBUS DP
in the Isochronous Mode (https://support.industry.siemens.com/cs/ww/en/view/109755401)
function manual.
Note
Isochronous coupling of the PROFIBUS interface with other clock systems is not possible.
If you want to expand the drive configuration limits with distributed drive systems, connect
those distributed drive systems over the PROFINET IO interface X150. Only the PROFINET IO
interface X150 can be connected isochronously alongside the MC Servo to the clock system
of SINAMICS Integrated and the X142 technology I/Os.
SIMATIC Drive Controller
System Manual, 11/2023, A5E46600094-AD
Configuring
9.11 Configuring the clock system
209