VEGA VEGASON 51P…53P Profibus PA User Manual
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VEGASON 51P … 53P
Product description
The VEGA adjustment program VVO can
access the entire spectrum of adjustment
options of VEGA sensors and, if necessary,
can update the complete sensor software. To
do this, the adjustment program must be
installed on a PC which is equipped with a
Profibus-Master-Class 2 interface card
(Softing) (see diagram on following page).
The PC with the Profibus interface card can
be connected directly at any point on the DP
bus with the standard RS 485 Profibus cable.
The adjustment and parameter data can be
saved with the adjustment software on the
PC and protected by passwords. If neces-
sary, the adjustments can be transferred
quickly to other sensors.
In practice, the adjustment program VVO is
often installed as a tool on an engineering
station or an adjustment station. VVO then
accesses via the Profibus interface card
(e.g. from Softing) as Master-Class 2 directly
via the bus, from the DP level via the seg-
ment coupler on PA level and finally to the
individual sensor, all VEGA sensors.
No DD necessary for adjustment with VVO
In addition to the instrument master file
(GSD), with which a sensor is logged into the
Profibus system, the majority of all Profibus
sensors also requires along with the specific
adjustment software a so-called EDD (Elec-
tronic Device Description). This is not the
case with VVO. The adjustment software
VVO can communicate at any time with all
VEGA sensors without requiring a special
database. Of course, all other VEGA sensors
can be adjusted with the adjustment software
as well (4 … 20 mA sensors or VBUS sen-
sors). With VEGA sensors, it is not neces-
sary to go looking for the latest EDD. This is
the essential requirement of a manufacturer-
independent adjustment program anticipated
by many users.
The above mentioned program PACTware
TM
is
such a manufacturer-independent automa-
tion/configuration tool through which access
to instruments of different manufacturers
(Krohne, Pepperl + Fuchs, VEGA, VIKA-
Bürkert…) is possible. The VEGA adjustment
software VVO works as an independent tool
or as a subprogram of PACTware
TM
. Depend-
ing on the sensor/instrument currently being
accessed, PACTware
TM
activates the neces-
sary menu options.