Siemens SINAMICS V20 Operating Instructions Manual page 283

Parameter Function
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 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 (de-
fault setting).
P2013[0...1] USS PKW length
Defines the number of 16-bit words in PKW part of USS telegram. The PKW area can be varied. Depend-
ing 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.
0
3
4
127
Example:
P2013 = 3
P2013 = 4
P2013 = 127
Index: [0]
[1]
Notice: USS protocol consists of PZD and PKW which can be changed by the user via P2012 and P2013 respec-
tively. P2013 determines the number of PKW-words in a USS-telegram. Setting P2013 to 3 or 4 deter-
mines the length of the PKW words (3 = three words and 4 = four words). When P2013 set to 127
automatically adjusts the length of the PKW words are required.
SINAMICS V20 Converter
Operating Instructions, 10/2019, A5E34559884-012
Range Factory
default
0 - 127 127
No words
3 words
4 words
Variable
U16 (16 Bit)
X
X
X
USS on RS485
USS on RS232 (reserved)
Can be Scaling
changed
U, T -
Data type
U32 (32 Bit)
Parameter access fault
X
X
Parameter list
8.2 Parameter list
Data Data Acc.
set type Level
- U16 3
Float (32 Bit)
Parameter access fault
X
X
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