Settings At The Profibus-Dp Master; General Information On The Dp Master - Siemens SIMODRIVE POSMO A User Manual

4 Communications via PROFIBUS–DP
4.4 Settings at the PROFIBUS–DP master
4.4 Settings at the PROFIBUS–DP master
4.4.1

General information on the DP master

Performance
features of
PROFIBUS devices
What is a
master device file
(GSD file)?
GSD file for "DP
slave
POSMO A"
Data transfer
consistent/
inconsistent
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PROFIBUS devices have different performance features.
The characteristic features of the slaves are summarized in a master
device file (GSD) so that all of the master systems can correctly ad-
dress the DP slave.
The features for the various master systems are summarized in a stan-
dardized master device file (GSD).
A master device (GSD file) describes the features of a DP slave in a
precisely defined, uniform format in accordance with EN 50 170, Vol-
ume 2, PROFIBUS.
GSD files are saved in the directory "\GSD".
The associated bitmaps are saved in the directory "\Bitmaps".
The master device file (GSD) for the "DP slave POSMO A" is available
as ASCII file as follows:
File name: SIEM8054.GSD
Where is the GSD file for the "DP slave POSMO A"?
From your local Siemens office (sales partner)
or
via the Internet http://www.profibus.com/products/gsd–files/
The PKW must be consistently transferred.
Consistent data include input/output data areas, which from the con-
tents, contain closed information which cannot be accommodated using
a byte, word or double–word structure.
For consistent data transfer, you require the SFC 14 and SFC 15
blocks in SIMATIC S7.
SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
E Siemens AG 2013 All Rights Reserved
05.13 02.99