Determining The Drive Object Numbers - Siemens SINAMICS S120 Series Function Manual

3.4.3

Determining the drive object numbers

Further information about the drive system (e.g. drive object numbers) can be determined as
follows using parameters p0101, r0102, and p0107/r0107:
1. The value of parameter r0102 ("Number of drive objects") for drive object/axis 1 is read
via a read request.
Drive object 1 is the Control Unit (CU) which is a minimum requirement for each drive
system.
2. Depending on the result of the initial read request, further read requests for drive object 1
are used to read the indices for parameter p0101 "Drive object numbers", as specified by
parameter r0102.
Example:
If the number of drive objects is "5", the values of indices 0 to 4 of parameter p0101 are
read. Of course, the relevant indexes can also be read at once.
3. Following this, parameter r0107/p0107 ("Drive object type") is read for each drive
object/axis (indicated by the drive object number).
Depending on the drive object, parameter 107 can be either an adjustable parameter or a
display parameter.
The value in parameter r0107/p0107 indicates the drive object type. The coding for the
drive object type is specified in the parameter list.
Communication
Function Manual, 12/2018, 6SL3097-5BD00-0BP0
Communication according to PROFIdrive
3.4 Acyclic communication
59