Vega VEGACOM 557 Profibus DP Bedienungsanleitung PDF herunterladen (Seite 7)

VEGACOM 557 Profibus DP 7

Function VEGACOM 557

Product description

DISBUS

LOGBUS

Profibus

DP

Buffer

memory

Proc-

ess

image

Emis-

sion

memory

Test

conver-

sion

VEGACOM 557 on Profibus DP

The data communication between VEGACOM

557 and Profibus DP-Master is only carried

out if initiated by the master , which can en-

quire the requested information by means of

special control commands.

The data from DISBUS/LOGBUS are first

written in a buffer memory of VEGACOM 557.

The data set is transferred from this buffer

memory into a process image. The protocol

conversion software enquires the stored data

cyclically from the individual storage areas.

The data sets are checked and converted

into the Profibus DP data format. After the

conversion, the data are transferred into the

emission memory and are sent from there to

the Pr ofibus DP. The PROFIBUS DP transmits

the data to the DP-Master .

VEGACOM 557 with VVO or VV

Direct connection

As an alternative to the Profibus DP commu-

nication, a PC can be connected via the PC

interface (SUB-D-plug in the front panel of

VEGACOM 557). By means of the adjustment

and indicating software VEGA Visual Opera-

ting (VVO), the parameter adjustment can be

made on the signal conditioning instruments

connected to VEGACOM 557. The adjust-

ment concept includes the user -friendly con-

figuration and parameter adjustment of the

measuring system or the sensor with the

following instruments:

- VEGAMET series 500/600 signal condi-

tioning instruments

- VEGALOG 571 processing system

- VBUS ultrasonic/radar sensors.

The adjustment is menu-driven and window

orientated. No matter if a radar sensor , sev-

eral connected signal conditioning instru-

ments or a VEGALOG should be adjusted via

the PC, the procedure is always the same.

As another possibility , measur ed values and

fault signals of the entire processing facility

can be recorded and shown graphically by

means of the visualisation software VISUAL

VEGA (VV). T ools for pr ocessing and analy-

sis of history data are also available.

The configuration of the measurement loop

comprises, depending on the connected

instruments, e.g. the determination of output

functions or the configuration of individual

outputs or inputs. The user orientated editing

of measurement loops is supported by

graphic means, such as e.g. vessel draw-

ings and pictographs that adapt to the se-

lected general conditions and options.

With the graphic support also more complex

parameter adjustments such as e.g. the input

of a linearisation curve by means of index

markers can be done with ease.

Connection via modem

The PC interface supports, beside the direct

connection of a PC, also the operation via

modems. With this additional function, remote

parameter adjustment or remote diagnostics

of VEGA systems via VVO are possible.

Together with the visualisation softwar e Visual

VEGA, even remote visualisations can be

carried out.

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