Rules On The Sampling Times; Rules For Setting The Sampling Time - Siemens SINAMICS S120 Function Manual

Basic information about the drive system
13.10 System rules, sampling times and DRIVE-CLiQ wiring
Terminal Modules:
Control Unit CU320-2:
● In total a maximum of 16 drive objects of the types TM15 Base, TM31, TM15, TM17,
TM41, TM120 or TM150 can be operated concurrently.
● A maximum of one F Terminal Module (TM54F) can be connected (in addition).
Control Unit CU310-2:
● In total a maximum of eight drive objects of the types TM15 Base, TM31, TM15, TM17,
TM41, TM120 or TM150 can be operated concurrently.
● A maximum of three drive objects of the types TM15, TM17 and TM41 may be operated
concurrently in each case.
● A maximum of one F Terminal Module (TM54F) can be connected (in addition).
DRIVE-CLiQ Module (HUB):
● A maximum of eight drive objects can be operated concurrently for a DRIVE-CLiQ
Module (DMC20 or DME20). (DMC20/DME20 do not count twice here.)
13.10.3

Rules on the sampling times

13.10.3.1

Rules for setting the sampling time

The following rules apply when setting the sampling times:
General rules:
● All set sampling times must be a multiple of 125 μs.
● There are a maximum two possible cycle levels on the Control Unit, where the lowest
sampling times are not integer multiples of one another. All sampling times set must be
an integer multiple of the smallest sampling time from one of these two cycle levels.
Example 1:
– Smallest sampling time cycle level 1: Active Line Module with 250 µs
– Smallest sampling time cycle level 2: One VECTOR drive object with 455 µs
This setting is permitted.
Additional sampling times must be integer multiples of 250 µs or 455 µs.
Terminal Modules, Terminal Board, Control Unit:
● For the digital and analog inputs/outputs of these components the minimum sampling
time (p0799, p4099, p0115) set must be 125 µs.
848
(p0113 = 1.098 kHz)
Function Manual, (FH1), 04/2014, 6SL3097-4AB00-0BP4
Drive functions