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PROFIBUS MODULE (CB15/CB155)
English
Operating Instructions
14
5. COMMISSIONING
5.1 Data Communication via PROFIBUS-DP
The structure of the user data is designated as parameter process data objects (PPO) in the PROFIBUS variable
speed drives profile:
Figure 2: Structure of the User Data in the PROFIBUS-DP Message Frame
U s e r D a t a
Parameter (PKW)
Process Data (PZD)
Protocol Frame
(Header)
Protocol Frame
(Trailer)
There is user data with a parameter area (PKW) and a process data area (PZD) and user data that consists
exclusively of process data. The PROFIBUS variable speed drives profile defines five PPO types. The PPO type is
defined in the PROFIBUS-DP master parameter settings.
PKW
PZD
PKE
IND
PWE
PZD1
STW1
ZSW1
PZD2
HSW
HIW
PZD
3
PZD
4
PZD
5
PZD
6
PZD
7
PZD
8
PZD
9
PZD1
0
1st
Word
2nd
Word
3rd
Word
4th
Word
1st Word
2nd
Word
3rd
Word
4th
Word
5th
Word
6th
Word
7th
Word
8th
Word
9th
Word
10th
Word
PPO1
PPO2
PPO3
PPO4
PPO5
PKW:
PZD:
PKE:
IND:
PWE:
STW1:
ZSW1:
HSW:
HIW:
Parameter identifier value
Process data
Parameter identifier
Index
Parameter value
Control word 1
Status word 1
Main setpoint
Main actual value
Figure 3:
Parameter Process Data Object (PPO Types)
Note
The CB15/CB155 only supports PPO types 1 and 3.