6 Commissioning Promag 53 PROFIBUS-DP/-PA
90 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 for-
mat and supported transmission rate so that it can integrate the field devices into the
bus system.
This data is contained in a PROFIBUS description 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 Profil 3.0 PROFIBUS description file (GSD) allows field devices from various manu-
facturers to be exchanged without having to repeat the configuration process.
Generally, a distinction can be made between three different types of GSD (Factory set-
ting: 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 pos-
sible to exchange devices that are supplied by various manufacturers. It is, however,
essential that the cyclic proces values follow the same sequence.
Example:
Promag 53 supports Profile GSD PA039741.gsd (RS 485) or PA139741.gsd (IEC 61158-
2). This GSD file contains two AI blocks and a totalizer block. The first AI block is always
assigned to the volume flow. This guarantees that the first measured variable agrees
with the field equipment of other manufacturers. The second AI block can be freely
selected as Promag 53 is capable of producing a calculated mass flow (see configura-
tion example on Page 98 ff.).
Profile GSD (multivariable) with the ID number 9760
Hex
: This GSD contains all func-
tion blocks such as AI, DO, DI.... This GSD is not supported by Promag.
Note:
• A decision should be made with respect to which GSD is to be used before configu-
ration takes place.
• The configuration can be altered using the local display or a Class 2 master!
Configuration using the local display
→ Page 86 ff.
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