Limitations Of Use; Maximum Number Of Terminal Modules - Siemens SIMOTION TM15 Commissioning Manual

Configuration/programming

2.7 Limitations of use

2.7 Limitations of use
Overview
The maximum possible number of terminal modules per SIMOTION D, SINAMICS Control
Unit or CX32 depends on the following factors:
● Maximum number of terminal modules
● Maximum number of drive objects
● Maximum permissible message frame length
● Other limitations
2.7.1

Maximum number of terminal modules

The following maximum quantity structures apply when using Terminal Modules:
● The total number of TM15 (without the TM15 DI/DO variant) and TM17 High Feature
● The total number of all TM15 and TM17 High Feature Terminal Modules permitted per
● The total number of all TM15 and TM17 High Feature Terminal Modules permitted per
Note
For details of any other applicable restrictions, refer to the SIMOTION D and SINAMICS
Manuals.
The TM15 and TM17 High Feature Terminal Modules require a DRIVE CLiQ cycle time of at
least 125 µs.
At present, the DRIVE CLiQ cycle time always corresponds to the currently set current
controller cycle clock. If a TM15, for example, is operated in conjunction with vector drives
with a DRIVE CLiQ cycle time > 125 µs, the resolution/accuracy of inputs of measuring
inputs or outputs of output cams deteriorates (resolution/accuracy identical to the DRIVE
CLiQ cycle time). Resolution and accuracy on the TM17 High Feature are not related to the
cycle time in use.
The computing load of each TM15/TM17 High Feature must be considered equivalent to one
half of a SINAMICS axis, which can lead to a reduction in the number of axes on the part of
drive control (does not apply for TM15 DI/DO).
40
Terminal Modules permitted per DRIVE CLiQ line is 3. This also applies when using a
DRIVE CLiQ Hub Module DMC20. If there are more than three TM15 or TM17 High
Feature Terminal Modules connected to a Control Unit in total, the maximum number of
TM15 or TM17 High Feature Terminal Modules that can be installed on one DRIVE CLiQ
line is two.
SIMOTION D4x5, SINAMICS CU320 or CX32 is 8.
SIMOTION D410 or SINAMICS CU310 is 3.
TM15 / TM17 High Feature Operating Manual
Commissioning Manual, 05/2009