Siemens SINAMICS G120XA - Specify User Data of Telegram; USS Telegram - User Data Structure

Telegram part Description
ADR
6SHFLDO
WHOHJUDP
0LUURU
WHOHJUDP
%URDGFDVW
ELW
$GGUHVV

● Bit 7 = 0: Normal data exchange.
Bit 7 =1, to transfer telegrams that require a net data structure different from
the device profile.
● Bit 6 = 0: Normal data exchange.
Bit 6 = 1: Testing the bus connection: The converter returns the telegram
unchanged to the master.
● Bit 5 = 0: Normal data exchange.
(Bit 5 = 1: Not supported in the converter.)
● Bits 0 ... 4: Address of the converter.
User data Specify user data of telegram (Page 169).
BCC Checksum (exclusive or) across all telegram bytes – with the exception of BCC.
6.2.4.4 Specify user data of telegram
Overview
The user data of the telegram consist of the following elements:
● Parameter channel (PIV) for writing and reading parameter values
● Process data (PZD) for controlling the drive
3,93='VWUXFWXUH
'DWDE\WH
/RJGDWD
3DUDPHWHUFKDQQHO3,9
/RJZRUGV
YDULDEOHOHQJWK
3URFHVVGDWD3='
3.(,1'3:(3:(3:(P
3.:3.:3.:3.:3.:P3='3='3='
+6:
+,:
3='3='
S S 
S 
S 
S 
S 
3

3

3

3

3


3

3

3

33






67:
=6:
67:
=6:
Figure 6-9 USS telegram - user data structure
Function description
Parameter channel
You specify the length of the parameter channel in parameter p2023:
● p2023 = 0
With this setting, no parameter values are transferred.
● p2023 = 3
You can select this setting if you only want to read or write 16-bit data or alarm signals.
Advanced commissioning
6.2 Drive control
SINAMICS G120XA converter
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB 169