Vega VEGACOM 557 VEGA ASCII protocol Bedienungsanleitung PDF herunterladen (Seite 4)

4 VEGACOM 557 VEGA ASCII

Product description

1 Product description

1.1 Application

The VEGACOM 557 is an efficient and easy-

to-use interface converter (Gateway) for your

measurement applications. It is used for

conversion of the VEGA-specific protocols of

DISBUS and LOGBUS into standard data

formats.

The existing version is used for connection of

level or pressure measuring systems to

Profibus DP systems such as

- processing systems (DCS)

- personal computers (PC)

- stored program control (PLC).

In addition, it is used for connecting a PC for

configuration or visualisation via the VEGA

adjustment software.

If connection is made to external systems,

there is the possibility of calling up measure-

ment data and status information of the meas-

uring systems via the master of the external

system. The coupling of the external system

is made via the connections on the rear of the

instrument. This data traffic requires that

special measures (described in this manual)

be taken in setting up the master of the exter-

nal system. The data received in the master

can be visualised there or further processed

for control purposes. In restricted volume,

signal conditioning instrument-specific pa-

rameters can be outputted, modified and

returned again.

Via the PC interface on the front of VEGA-

COM 557, the VEGA visualisation software

"Visual VEGA“ or the VEGA configuration

software "VEGA Visual Operating“ (VVO) can

be operated. For these applications, the

coupling between VEGACOM 557 and a PC

is made directly with the connection cable

between the RS 232 interface (PC) on the

front of VEGACOM 557 and a standard Port

(e.g. COM1) of your PC. There is also the

possibility to provide a connection via mo-

dems.

VEGACOM 557 connections

1.2 Configuration

The component VEGACOM 557 is designed

in 19" technology with 5 TE width (1 TE = 5.08

mm) acc. to DIN 41 494. It can be used:

- in carrier BGT 596

- in VEGALOG 571 carrier BGT LOG 571

- in housing type 505.

The electrical connection of supply voltage,

DISBUS and Modbus is made via a plug

connection acc. to DIN 41 612 on the rear of

the component. The connection to LOGBUS

is made via an additional 5-pole plug-con-

nector mounted to the DIN-socket.

A 9-pole SUB-D plug marked “PC” is located

on the front panel of VEGACOM 557. It is

used for connection of a PC via RS 232C to

VEGACOM 557.

The component consists of two boards:

- the basic board

- the additional board.

On the basic board, you will find the power

supply unit, the PC interface, the DISBUS/

LOGBUS interface as well as the connections

for the VEGA ASCII interface.

The additional board is screwed to the basic

board and includes the hardware of the

VEGA ASCII interface as well as the protocol

specific programs.

PC

interface

DISBUS

LOGBUS

Modbus

Supply

Basic board

Additional board

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