Efficient Networks Siemens Sinamics S120 - Manual (Page 431)

Communication PROFIBUS DP/PROFINET IO
10.2 Communication via PROFIBUS DP
Drive Functions
Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
431
Commissioning in STARTER
Slave-to-slave communication is configured in HW Config and is simply an extension of an
existing telegram. Telegrams can be extended in STARTER (e.g. p0922 = 999).
Figure 10-40 Configuring the slave-to-slave communication links in STARTER
In order to terminate the configuration of slave-to-slave communication for the DOs, the
telegram data of the DOs in STARTER must be matched to those in the HW Config and
must be extended. The configuration is made centrally via the configuration of the respective
CU.
Procedure
1. In the overview for the PROFIBUS telegram, you can access the telegrams of the drive
objects, here SERVO_02. Select the telegram type "Free telegram configuration" for the
configuration.
2. Enter the telegram lengths for the input data and output data according to the settings in
HW Config. For slave-to-slave communication links, the input data comprise the standard
telegram and the slave-to-slave communication data.
3. Then set the telegram in the telegram selection to the standard telegram for drive objects
(in the example: standard telegram 2), which results in a split display of the telegram
types (standard telegram + telegram extension). The telegram extension represents the
telegram portion of slave-to-slave communication.