Drive Controller-Specific Properties Of Sinamics Integrated - Siemens SIMATIC S7-1500 System Manual

Application planning
6.3 Drive Controller-specific properties
Drives without isochronous mode
There are applications where the drives do not require isochronous mode, for example:
• If the Motion Control functionality is implemented directly in the drive system (e.g. with
the EPos basic positioner)
• If axis telegrams are used that do not require isochronous mode (e.g. PROFIdrive
telegrams of application classes 1 and 3).
Since the SINAMICS Integrated is always isochronous, an OB servo or isochronous OB must be
assigned to the process image.
Tip:
If you implement the Motion Control technology via the drive system and do not use any
Motion Control technology objects in the CPU, you can force the automatic creation of the OB
servo by inserting a cam.
Since a cam does not generate any relevant additional CPU load, this solution is more
efficient than, for example, creating a virtual axis.
Additional information
You can find more information on the clock systems of the SIMATIC Drive Controller in the
Configuring clock systems (Page 197) section.
6.3.3

Drive Controller-specific properties of SINAMICS Integrated

Supported functions
The automatic speed control integrated in the SIMATIC Drive Controller supports only a
functional subset of the SINAMICS S120 CU320-2 drive functions. Free function blocks
(FBLOCKS), for example, are not supported by SINAMICS Integrated. For details, see
SINAMICS Integrated functions (Page 91).
Online functions with SINAMICS Integrated
SINAMICS Integrated is connected to the CPU over an internal PROFIdrive subnet. From the
point of view of an external PROFINET/PROFIBUS interface, SINAMICS Integrated is connected
to a lower-level network. Please therefore note the following aspects:
• Online functions with SINAMICS Integrated are only possible if the SIMATIC Drive
Controller (CPU and SINAMICS Integrated) are configured in the TIA Portal and the
network configuration has first been loaded to the CPU.
• If only Startdrive is installed (and not STEP 7 Professional), SINAMICS Integrated can be
configured offline. Online functions are not possible. STEP 7 Professional and Startdrive
need to be installed for this purpose.
• A subnet needs to be configured for the interface to which you are connecting the
programming device. Routing to the SINAMICS Integrated is only possible if a subnet is
configured.
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SIMATIC Drive Controller
System Manual, 11/2023, A5E46600094-AD