Vega VEGABAR 81 Profibus PA - Operating Instructions Bedienungsanleitung PDF herunterladen (Seite 67)

11 Supplement

VEGABAR 81 • Probus PA

45020-EN-131107

11.2 CommunicationProbusPA

Instrumentmasterle

The instrument master le (GSD) contains the characteristic data of the Probus 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 Probus 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 conguration tool.

ID number

Each Probus instrument gets an unambiguous ident number (ID number) from the Probus user

organisation (PNO). This ID number is also included in the name of the GSD le. Optionally to this

manufacturer-specic GSD le, PNO provides also a general so-called prole-specic GSD le. If

the general GSD le is used, the sensor must be set to the prole-specic ident number via the DTM

software. By default, the sensor operates with the manufacturer-specic ID number. When using the

instruments on a segment coupler SK-2 or SK-3, no special GSD les are required.

Module of the PA sensors

For the cyclic data trac, VEGABAR 81 provides the following modules:

•

AI FB1 (OUT)

– Out value of the AI FB1 after scaling

•

AI FB2 (OUT)

– Out value of the AI FB2 after scaling

•

AI FB3 (OUT)

– Out value of the AI FB3 after scaling

•

Free Place

– This module must be used if a value in the data telegram of the cyclical data trac should not

be used (e.g. replacement of temperature and Additional Cyclic Value)

A maximum of three modules can be active. By means of the conguration software of the Probus

master you can determine the conguration of the cyclical data telegram with these modules. The

procedure depends on the respective conguration software.

Note:

The modules are available in two versions:

•

Short for Probus master supporting only one "Identier Format" byte, e.g. Allen

Bradley

•

Long for Probus master only supporting the "Identier Format" byte, e.g. Siemens

S7-300/400

Examplesoftelegramconguration

In the following you will see how the modules can be combined and how the appendant data tel-

egram is structured.

Example 1

•

AI FB1 (OUT)

•

AI FB2 (OUT)

•

AI FB3 (OUT)

1 2 ... 62 63 64 65 66 67 68 69 70 71 72 ... 83 84

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