Setting The Send Cycles And System Clocks - Siemens SIMOTION D410 Series Commissioning Manual

3.4.3

Setting the send cycles and system clocks

Prerequisite
The SIMOTION system clocks (servo/IPO/IPO2) are based on the SINAMICS Integrated DP
cycle or the PROFINET send cycle, depending on the PROFINET real-time class and the
type of data transfer. The cycle clock source can be generated "internally" by the
SIMOTION D410; otherwise, it is obtained "externally" from the clock signals received at the
PROFINET interface.
Table 3- 4 Basis for the SIMOTION system clocks/cycle clock source
Real-time class in which the
PROFINET interface is
operated
RT communication
IRT communication
(high flexibility)
IRT communication
(high performance)
If the PROFINET send cycle forms the basis for the SIMOTION system clocks, the SINAMICS Integrated DP cycle and
1)
the servo cycle are equal.
Synchronized data traffic, e.g. by means of:
2)
- Controller-controller slave-to-slave communication
- I/O device in separate I/O system
Setting the DP cycle in HW Config
Set the DP cycle of SINAMICS Integrated in HW Config. In HW Config, double-click the
SINAMICS drive at the integrated PROFIBUS. The "DP Slave Properties" dialog box opens.
You can synchronize the DP cycle of SINAMICS Integrated in the "Isochronous mode" tab.
Table 3- 5
DP cycle
Grid
SINAMICS Integrated always operates in isochronous mode. The cyclic tasks of SIMOTION
are therefore always in synchronism with SINAMICS Integrated.
D410
Commissioning Manual, 05/2009
Data transfer
The D410 is the SYNC master
in the I/O system;
synchronized data traffic takes
place
2)
The D410 is the SYNC slave
in the I/O system;
synchronized data traffic takes
place
2)
No synchronized data traffic
Range of values for SIMOTION D410 PN
3.4 Configuring PROFINET (only for D410 PN)
Basis for the SIMOTION system
clocks
DP cycle
(Integrated) send cycle
X
X
X
2)
≥ 1 ms
0.125 ms
Configuring SIMOTION D410
Cycle clock source
PROFINET
1)
Internal
Internal
X Internal
X External
Internal
(as substitute value)
Internal
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