Siemens SINAMICS V20 Operating Instructions Manual page 266

Parameter list
8.2 Parameter list
Parameter Function
P2011[0...1] USS address
Sets unique address for inverter.
Index: [0]
[1]
Note: You can connect up to a further 30 inverters via the serial link (i.e. 31 inverters in total) and control them
with the USS serial bus protocol.
P2012[0...1] USS PZD length
Defines the number of 16-bit words in PZD part of USS telegram. In this area, process data (PZD) are con-
tinually exchanged between the master and slaves. The PZD part of the USS telegram is used for the main
setpoint, and to control the inverter.
Index: [0]
[1]
Notice: USS protocol consists of PZD and PKW which can be changed by the user via P2012 and P2013 respec-
tively.
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 (default
setting).
266
Range Factory
default
0 - 31 0
USS on RS485
USS on RS232 (reserved)
0 - 8 2
USS on RS485
USS on RS232 (reserved)
Can be Scaling
changed
U, T -
U, T -
Operating Instructions, 11/2016, A5E34559884-006
Data Data Acc.
set type Level
- U16 2
- U16 3
SINAMICS V20 Inverter