Siemens SINAMICS G120 - Data Structure of the Parameter Channel

Configuring the fieldbus
7.3 PROFIdrive profile for PROFIBUS and PROFINET
Inverter with CU230P-2 Control Units
124 Operating Instructions, 11/2013, FW V4.6.6, A5E02430659B AG
Freely selecting the signal interconnection of the telegram
The signals in the telegram can be freely interconnected.
Procedure
Proceed as follows to change the signal interconnection of a telegram:
1. Using STARTER or an operator panel, set parameter p0922 = 999.
2. Using STARTER or an operator panel, set parameter p2079 = 999.
3. Interconnect additional PZD send words and PZD receive words with signals of your
choice via parameters r2050 and p2051.
You have freely interconnected the signals transferred in the telegram.
Parameter
Description
p0922
PROFIdrive telegram selection
999:
Free telegram (message frame) configuration
p2079
PROFIdrive PZD telegram selection extended
999:
Free telegram (message frame) configuration
r2050[0…11]
PROFIdrive PZD receive word
Connector output to interconnect the PZD (setpoints) in the word format received
from the PROFIdrive controller.
p2051[0…11]
PROFIdrive PZD send word
Selection of the PZD (actual values) in the word format to be sent to the PROFIdrive
controller.
For further information refer to the function block diagrams 2468 and 2470 of the List
Manual.
7.3.1.4
Data structure of the parameter channel
Structure of the parameter channel
The parameter channel consists of four words. 1st and 2nd word transfer the parameter
number and index as well as the type of job (read or write) The 3rd and 4th word contains
the parameter contents. The parameter contents can be 16-bit values (such as baud rate) or
32-bit values (e.g. CO parameters).
Bit 11 in the 1st word is reserved and is always assigned 0.
You can find examples of telegrams at the end of this section.