6 Commissioning PROline Prosonic Flow 93 PROFIBUS-DP/-PA
96 Endress+Hauser
6.4 System integration
The device will be ready for system integration once commissioning has been effected
via the local display or the Class 2 master (Commuwin II). The PROFIBUS-DP system
will require a description of the device parameters, e.g. output data, input data, data
format and supported transmission rate so that it can integrate the field devices into the
bus system.
This data is contained in a Device Master File (GSD file) which will be placed at the
disposal of the PROFIBUS-DP master while the communication system is being
commissioned.
Device bitmaps, which appear as symbols in the network tree, can also be integrated.
The Profile 3.0 Device Master File (GSD) allows field devices from various producers to
be exchanged without having to reconfigure.
Generally, a distinction can be made between three different types of GSD (factory
setting: manufacturer-specific GSD):
Manufacturer-specific GSD: This GSD guarantees the unlimited functionality of the
field device. Device-specific process parameters and functions are therefore available.
Profile GSD: This GSD is different in terms of the number of Analog Input Blocks (AI)
and the measuring principles. If a system is configured with profile GSDs, it will be
possible to exchange devices that are supplied by various manufacturers. It is,
however, essential that the cyclic process values follow the same sequence.
Example:
Prosonic Flow 93 supports Profile GSD PA039741.gsd (RS 485) or PA139741.gsd (IEC
61158-2 (MBP)). This GSD comprises two AI Blocks and one Totalizer Block. The AI
Blocks are assigned to the following measured variables:
AI 1 = Volume flow, AI 2 = Sound velocity channel 1.
Profile GSD (multi-variable) with the ID No. 9760
Hex
: This GSD contains all function
blocks such as AI, DO, DI.... This GSD is not supported by Prosonic Flow 93.
!
Note!
A decision should be made with respect to which GSD is to be used before
configuration takes place.
The configuration can be altered using the local display or a configuration program
(Class 2 master). Configuration using the local display
Page 85 ff.