Siemens SINAMICS DCM Operating Instructions Manual page 626

Descriptions of functions
10.33 CPU time load with SINAMICS DCM
Example 2:
Project B is a single drive connected to an S7 via PROFINET. 3 TM31 modules are used for
terminal expansion. The sampling rates of the TM modules (p4099) are set to 4000 ms. In
addition, a configured DCC application in the drive is running, which comprises 50 blocks
and runs in the 6 ms time slice.
Base load
CBE20
3 × TM31 with p4099[1,2,3] = 500
DCC application: 50 blocks @ 1 ms
Calculated CPU time load =
The CUD is 82% utilized.
Note
The available CPU time can be expanded by equipping the SINAMICS DCM with a 2nd CUD
(right-hand mounting slot). See Chapter "Expanding the SINAMICS DCM to include a
second CUD (Page 590)".
624
70%
+1%
+6%
+5%
82%
SINAMICS DCM Control Module
Operating Instructions, 12/2018, A5E34888669A