Siemens SIMODRIVE POSMO A User Manual

4
4.1 General information about PROFIBUS–DP
4-102
E Siemens AG 2013 All Rights Reserved
SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
The telegrams for cyclic data transfer have the following basic struc-
ture:
Net data (PPO)
Parameter
ID value
(PKW)
Process
data
(PZD)
Report
frame
(header)
Report
frame
(trailer)
Fig. 4-2 Telegram structure for cyclic data transfer
There are 5 defined PPO types (PPO1 to PPO5).
For SIMODRIVE POSMO A, only PPO type 1 (PPO1) can be used.
PPO1 is structured as follows:
S 4 words for the parameter area (PKW area)
S 2 words for the process data area (PZD area)
Table 4-2 Structure of Parameter Process Data Object 1 (PPO 1)
Net data
PKW
S Refer to Chapter 4.3
PZD
S Refer to Chapter 4.2
PKE IND PWE
PZD
1
PZD
2
...
1st
word
2nd
word
3rd
word
4th
word
1st
word
2nd
word
...
PPO1 ...
Abbreviations:
PPO Parameter Process data Object
PKW Parameter ID value
PKE Parameter ID
IND Sub–index, sub–parameter number, array index
PWE Parameter value
PZD Process data
Telegram structure
for cyclic
data transfer
PPO types
4 Communications via PROFIBUS–DP
02.99

Siemens SIMODRIVE POSMO A Specifications

General

Brand	Siemens
Model	SIMODRIVE POSMO A
Category	Engine
Language	English