Uss Pzd Length - Siemens MICROMASTER 440 Parameter Manual

Parameter Description
P2012[2]

USS PZD length

CStat: CUT
P-Group: COMM
Defines the number of 16-bit words in PZD part of USS telegram.
Index:
P2012[0] : Serial interface COM link
P2012[1] : Serial interface BOP link
Notice:
USS protocol consists of PZD and PKW which can be changed by the user via parameters P2012 and
P2013 respectively.
STX LGE
PKE
STX
LGE
ADR
PKW
PZD
BCC
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 (P2012 >= 2) are either:
- control word and main setpoint or
- status word and actual value.
Restrictions:
- If the above serial interface controls the inverter (P0700 or P0719) then the 1st control word must be
transferred in the 1st PZD-word.
- If the setpoint source is selected via P1000 or P0719, then the main setpoint must be transfered in the
2nd PZD-word,
- When P2012 is greater than or equal to 4 the additional control word (2nd control word) must
transferred in the 4th PZD-word, if the serial interface controls the inverter (P0700 or P0719).
STW
ZSW
PZD1
STW Control word
ZSW Status word
PZD Process data
196
Datatype: U16
Active: first confirm
USS telegram
Parameter
ADR
PKW
IND PWE
Start of text
Length
Address
Parameter ID value
Process data
Block check character
HSW
STW2
HIW
PZD2 PZD3 PZD4
P2012
HSW
HIW
Min:
Unit: - Def:
QuickComm.: No Max:
Process data
BCC
PZD
PZD1 PZD2 PZD3
PKE Parameter ID
Sub-index
IND
Parameter value
PWE
Main setpoint
Main actual value
MICROMASTER 440
Issue 01/06
Level
0
3
2
8
PZD4
Parameter List
6SE6400-5BB00-0BP0