Ident number, Cyclical data traffic – VEGA VEGABAR 67 Profibus PA - climate compensated User Manual

Page 60

10 Supplement

VEGABAR 67 • Profibus PA - climate compensated

39445-EN-130321

A bitmap file is also provided for the Profibus network planning tool. This file is installed automati-

cally when the GSD file is integrated. The bitmap file is used for symbolic indication of the PA instru-

ment in the configuration tool.

Ident number

Each Profibus instrument gets an unambiguous ident number (ID number) from the Profibus user

organisation (PNO). This ID number is also included in the name of the GSD file. For VEGABAR 67

the ID number is 0 x 076F(hex) and the GSD file BR__076F.GSD. As an option to this manufactur-

er-specific GSD file, PNO provides also a general so-called profile-specific GSD file. For VEGABAR

67 you have to use the general GSD file PA139701.GSD. If the general GSD file is used, the sensor

must be set to the profile-specific ident number via the DTM software. By default, the sensor oper-

ates with the manufacturer-specific ID number.

Note:

When using the profile-specific GSD file, the PA-OUT value as well as the temperature

value are transmitted to the PLC (see block diagram "Cyclical data traffic").

Cyclical data traffic

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

Alarms

Scaling

Source for

scaling

Damping

Sensor

characteristics

PA-Out

Select additional cyclic

value

Sensor mounting

correction

Fig. 33: VEGABAR 67: Block diagram with AI (PA-OUT) value and Additional Cyclic Value