Rules For Simotion D410 Pn - Siemens SIMOTION D410 Series Commissioning Manual

Configuring SIMOTION D410
3.4 Configuring PROFINET (only for D410 PN)
Setting the send cycle in HW Config
The PROFINET send cycle always forms the basis for the SIMOTION cycles if the "IRT
communication" real-time class is set and data are being transferred. Set the send cycle in
the "Domain Management" dialog box of HW Config. Open this dialog by selecting the "Edit"
> "PROFINET IO" > "Domain Management ..." command in HW Config.
The set PROFINET send cycle is displayed in SIMOTION SCOUT as "Bus cycle" in the
"System Clocks - D410..." dialog box. Select the SIMOTION D410 PN in the project tree, and
then select the "Set system clocks" option in the "Target system" > "Expert" menu.
The PROFINET interface supports send cycle times within the range 0.5 ms < send cycle <
4 ms. The maximum configurable resolution is 0.125 ms.
The table below shows which ratios you can set for the system clocks of SIMOTION D410
PN based on the DP cycle of SINAMICS Integrated or on the PROFINET send cycle.
Table 3- 6
Servo cycle: DP cycle/send cycle
1 to 4, 8
The minimum servo cycle length that can be set is 2 ms.
3.4.4

Rules for SIMOTION D410 PN

Rules for using the PROFINET send cycle
If the PROFINET send cycle is the basis for the cycles, ensure that the DP cycle of the
SINAMICS Integrated and the servo cycle are equal.
The timebase for the system clocks are generated internally if the PROFINET interface is not
operated with RT class IRT with high performance or IRT with high performance is set, but
no data is being transferred. This even applies if the PROFINET interface with real-time
class "IRT with high performance" is being operated as the synchronization master and data
are being transferred. The SIMOTION device does not have to synchronize itself with an
external cycle.
The basis for system clocks is derived from the clock signals received at the PROFINET
interface if this interface is operated as synchronization slave with RT class IRT with high
performance. The SIMOTION device does not have to synchronize itself with this external
clock.
A substitute clock of a duration equivalent to the configured clock is generated internally if
the PROFINET interface has not received a clock signal.
The clock settings are included in the project download to the SIMOTION device and are
adjusted according to specification.
54
Possible factors for setting the system clocks
IPO cycle: Servo cycle
1 to 6
Commissioning Manual, 05/2009
IPO2 cycle: IPO cycle
2 to 64
D410