55
10 Supplement
VEGABAR 51 • Probus PA
36714-EN-130321
10.2 InformationonProbusPA
Instrumentmasterle
The instrument master le (GSD) contains the characteristic data of the Probus PA instrument.
These data are, e.g. the permissible transmission rates as well as information on diagnostics values
and the format of the measured value outputted by the PA instrument.
A bitmap le is also provided for the Probus network planning tool. This le is installed automati-
cally when the GSD le is integrated. The bitmap le is used for symbolic indication of the PA instru-
ment in the conguration tool.
Ident number
Each Probus instrument gets an unambiguous ident number (ID number) from the Probus user
organisation (PNO). This ID number is also included in the name of the GSD le. For VEGABAR 51
the ID number is 0x076F(hex) and the GSD le BR__076F.GSD. As an option to this manufactur-
er-specic GSD le, PNO provides also a general so-called prole-specic GSD le. For VEGABAR
51 you have to use the general GSD le PA139701.GSD. If the general GSD le is used, the sensor
must be set to the prole-specic ident number via the DTM software. By default, the sensor oper-
ates with the manufacturer-specic ID number.
Note:
When using the prole-specic GSD le, the PA-OUT value as well as the temperature
value are transmitted to the PLC (see block diagram "Cyclical data trac").
Cyclicaldatatrac
The master class 1 (e.g. PLC) cyclically reads out measured values from the sensor during opera-
tion. The below block diagram below shows which data can be accessed by the PLC.
bar
% Lin%
Min-Max
adjustment
Linearization
PROFIBUS PA-output
Primary
Value
Secondary
Value 1
Secondary
Value 2
Target
Mode
Failure
mode
AlarmsScaling
Source for
scaling
t
i
Damping
Sensor
characteristics
PA-Out
TB
FB
Select additional cyclic
value
Sensor mounting
correction
Fig. 28: VEGABAR 51: Block diagram with AI (PA-OUT) value and Additional Cyclic Value
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