Siemens SIMOTION D410 Commissioning Manual page 72

Parameter assignment / addressing
4.4 Configuring PROFINET (only for D410 PN)
The basis for the system clocks is generated internally if the PROFINET interface is not
operated with RT class IRT or if IRT is set and no data are being transferred. This also applies
if the PROFINET interface is operated as synchronization master with RT class IRT 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. 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.
Rules for SIMOTION D410 PN
As a general rule for SIMOTION D410, the send cycle (D410 PN) forms the basic clock of the
task system. All cycles longer than this basic clock must be an integer multiple of the basic
clock.
This rule also applies to SINAMICS cycles, if one of the successive cycles is longer than the
basic clock:
● Speed controller p115[1]
● Flow controller p115[2]
● Setpoint channel p115[3]
● Position controller p115[4]
● Positioning p115[5]
● Technology controller (p0115[6])
● Onboard I/O p0799
● Terminal module I/O p4099
The corresponding cycle must be an integer multiple of the basic clock.
If any change to the send cycle violates this rule you must also change the SINAMICS cycles.
In order to change the cycles in the Expert list of SIMOTION SCOUT, select the "Control_Unit"
from "SINAMICS_Integrated" in the Project Navigator, and then open the "Expert List" by
selecting the "Expert" command from the shortcut menu.
Example:
A default value of 4 ms is set at the SINAMICS setpoint channel. If the send cycle is to be set
to 3 ms, the fact that an integer multiple value is required means that you will need to set 3 ms
or 6 ms (for example) for the setpoint channel.
Note
An overview of errors reported by the SINAMICS Integrated is provided in the
Parameter Manual.
72
SINAMICS S
SIMOTION D410
Commissioning Manual, 04/2014