Setting The Dp Cycle And System Cycle Clocks - Siemens SIMOTION D4x5-2 Commissioning And Hardware Installation Manual

You set these PROFIBUS addresses individually for each device with the PG/PC using HW
Config. Some PROFIBUS DP slaves have a switch for this purpose.
Note
The PROFIBUS addresses set at the devices using these switches must correspond with the
address settings in HW Config.
Recommendation for PROFIBUS addresses
Reserve PROFIBUS address "0" for a service programming device and "1" for a service HMI
device, which will be connected to the subnet if required.
Recommendation for the PROFIBUS address of the SIMOTION D4x5‑2 in case of replacement
or service:
Reserve address "2" for a SIMOTION D4x5‑2. This prevents duplicate addresses when
installing a SIMOTION D4x5‑2 with a default setting on the subnet (e.g. when a
SIMOTION D4x5-2 is replaced). You should therefore assign addresses greater than "2" to
additional units on the subnet.
6.3.4

Setting the DP cycle and system cycle clocks

All cycle clocks for the SIMOTION D4x5‑2 are based on the DP cycle of SINAMICS Integrated,
which must be set in HW Config.
To do so, click the SINAMICS block on the integrated PROFIBUS. The "DP Slave Properties"
dialog box opens. You can adjust the DP cycle of the SINAMICS Integrated on the
"Isochronous mode" tab.
Table 6-2
DP cycle
Grid
Min. IPO cycle clock
External DP interfaces can only be operated with a DP cycle of ≥ 1 ms.
SINAMICS Integrated always runs in isochronous mode. The DP cycle setting of the
SINAMICS Integrated is displayed as the "Bus data cycle" in the "System Cycle Clocks" dialog
box. In SIMOTION SCOUT, select the SIMOTION D Control Unit and then select the "Set
system cycle clocks" option in the "Target system" > "Expert" menu.
SIMOTION D4x5-2
Commissioning and Hardware Installation Manual, 03/2018, A5E33441636B
SIMOTION D4x5‑2 value range
D425-2 DP
D425-2 DP/PN
D435-2 DP
≥ 0.5 ms (DP internal
)≥ 1.0 ms (DP external)
0.125 ms
≥ 0.5 ms
Parameter assignment / addressing
6.3 Configuring PROFIBUS DP
D435-2 DP/PN
D445-2 DP/PN
D455-2 DP/PN
≥ 0.25 ms (DP internal)
≥ 0.5 ms (DP internal, < V4.5)
≥ 1.0 ms (DP external)
0.125 ms
≥ 0.25 ms
≥ 0.5 ms (< V4.5)
135