Siemens Sinamics G120 Series Parameter Manual page 201

STX
PZD transmits a control word and setpoint or status word and actual values.
The number of PZD-words in a USS-telegram are determined by parameter P2012, where the first two words are
either:
a) control word and main setpoint or
b) status word and actual value.
When P2012 is greater or equal to 4 the additional control word is transferred as the 4th PZD-word (default setting).
STW
ZSW
PZD1
STW
ZSW
PZD
p2013[0...1] USS PKW length / USS PKW length
Access level: 3
Quick comm. NO
Can be changed: U, T
Min
0
Description: Defines the number of 16-bit words in PKW part of USS telegram.
The PKW area can be varied.
Depending on the particular requirement, 3-word, 4-word or variable word lengths can be parameterized.
The PKW part of the USS telegram is used to read and write individual parameter values.
Values: 0:
3:
4:
127:
© Siemens AG 2007 All Rights Reserved
SINAMICS G120 Control Units CU240S, Edition 05/2007
USS telegram
Parameter
LGE ADR
PKW
PKE IND
STX Start of text
LGE Length
ADR Address
PKW Parameter ID value
PZD Process data
BCC Block check character
HSW
HIW
PZD2 PZD3
p2012
Control word
Status word
Process data
No words
3 words
4 words
Variable
Process data
PZD
PWE PZD1 PZD2
Parameter ID
PKE
Sub-index
IND
Parameter value
PWE
STW2
PZD4
Main setpoint
HSW
Main actual value
HIW
P-Group: Communications
Active: NO
Max
127
Parameters
List of Parameters
BCC
PZD3 PZD4
Data type: Unsigned16
Data set: -
Factory setting
127
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