Cycle Clock Scaling Of External Profibus Interface To Internal Profibus Interface - Siemens SIMOTION D410-2DP/PN Installation Manual

Current controller cycle clock
With the SIMOTION D410-2, the following current controller cycle clocks p0115[0] can be
configured for the SINAMICS Integrated:
● for servo: 125 μs (default) or 250 μs
● For vector and vector V/f:
– For blocksize Power Modules: 250 μs or 500 μs (default)
– For chassis Power Modules: 375 μs.
See also
Using vector drives (Page 171)
6.3.6 Cycle clock scaling of external PROFIBUS interface to internal PROFIBUS
interface
Definition
Cycle clock scaling means that an external PROFIBUS interface of the SIMOTION D410‑2 DP
(X21/X24) or SIMOTION D410‑2 DP/PN (X21) can be operated in an integer multiple of the
internal PROFIBUS interface. This reduces the CPU load, thereby allowing you to operate
more axes, for example. The settings of the scaled cycle clocks for the external DP interfaces
are made in HW Config.
Supplementary conditions
The following supplementary conditions are applicable to cycle clock scaling:
● An external DP interface of the D410‑2 is used as an isochronous slave interface. Only in
this case can an integer cycle clock scaling of isochronous external DP slave interface to
internal interface be specified. This is checked during compilation and an error message
is output in the event of noncompliance. If the external DP interfaces are configured as
equidistant interfaces but none are configured as slaves and cycle clock scaling is specified
for these interfaces, an error is output during compilation.
● For SERVO, IPO, and IPO2, settings can also be made for all permissible cycle clocks.
Master and slave axes can run in different IPO levels. Different cycle clocks and phase
offsets are tolerated by the system.
Note
The IPO cycle clock of the IPO in which the synchronous operation technology object runs
must be set equal to the cycle clock of the isochronous external DP slave interface.
SIMOTION D410-2
Commissioning and Hardware Installation Manual, 01/2015
Parameter assignment / addressing
6.3 Configuring PROFIBUS DP
119