Vega VEGACOM 557 Modbus protocol Bedienungsanleitung PDF herunterladen (Seite 13)

VEGACOM 557 Modbus 13

on

557

BA

PC

Voltage supply

Fault signal

1.7 Indicating and adjustment ele-

ments

As diagnostic aid, VEGACOM 557 is

equipped with three LEDs. These are located

on the instrument front panel. In addition, the

basic board, as well as the additional board

of VEGACOM 557 are equipped with a

number of switches (DIP switch or hook

switch) for configuration of the available inter-

faces.

Indicating elements/Diagnostics LEDs

Modbus activity

Front of VEGACOM 557

2 3 4

ON

1

DIL switch

on additional

board

DIL switch

on basic board

Side view of VEGACOM 557

Product description

Meaning of the LEDs:

VEGA ASCII active:

- green LED lights in case of valid data ex-

change

Fault signal:

- red LED flashing: DISBUS/LOGBUS-error

- irregularly flashing: no PC/DCS outputs

assigned

- permanent light: hardware error or special

function "Freeze Mode“

Voltage supply:

- green LED lights, operating voltage on.

Adjustment elements

The adjustment elements are located on the

basic board. A 6-pole DIL switch block on

the basic board is used for adjustment of the

front PC interface.

Special function “Freeze Mode“

For diagnostic purposes on VEGA process-

ing systems VEGAMET and VEGALOG, the

process image can be “frozen“ in VEGACOM

557 with the adjustment software VVO. This

enables the possibility of carrying out mainte-

nance work on the VEGA system without

disturbing the higher-priority processing

system.

For activating the Freeze Modes, a PC must

be connected directly to the PC interface of

VEGACOM 557 and the Freeze Mode must

be switched on under VVO in the menu "Con-

figuration - Measuring system“.

Attention:

Before activating this function, it must be

ensured that during this mode, no disastrous

consequences are to be expected for pro-

duction processes (during this mode, no

level values, etc., are updated).

Basic board

Additional

board

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