VEGA VEGAPULS 45 Profibus PA - Manual (Page 8)

8 VEGAPULS 42, 44 and 45 – Profibus PA
24908-EN-041227
Adjustment with the PC
Generally, the set-up and adjustment of radar
sensors is most conveniently carried out on
the PC with the adjustment program
PACTware
TM under Windows ® . The program
leads quickly through adjustment and pa-
rameter setting by means of pictures, graph-
ics and process visualisations.
The adjustment software PACT ware TM acc. to
the FDT concept (Field Device Tool) operates
as an independent adjustment program on
any PC, engineering station or process con-
trol computer.
The adjustment program requires for the
communication with Profibus sensors either a
Profibus-Master-Class2 interface card or the
interface adapter VEGACONNECT 3. The PC
with the Profibus interface card can be con-
nected directly to any point on the DP bus
with the standard RS 485 Profibus cable. In
conjunction with the adapter
VEGACONNECT, the PC can be connected
directly to the sensor. VEGACONNECT com-
municates via a small plug directly with the
individual sensor.
The adjustment and parameter data can be
saved at any time on the PC with the adjust-
ment software and can be protected by
passwords. If necessary, the adjustments
can be transferred quickly to other sensors.
In practice, the adjustment software
PACT
ware TM is often installed as a tool on an
engineering station or an operating station.
As a Master Class 2 operating through the
Profibus interface card (e.g. from Softing), it
then accesses VEGA sensors directly over
the bus, from the DP level to the PA level via
the segment coupler.
Beside the instrument master file (GSD), with
which a sensor is logged into the Profibus
system most Profibus sensors require a so-
called EDD (Electronic Device Description),
in order to be accessed and adjusted from
the bus levels.
The disadvantages of the HART ® environment
are well known: for each sensor/participant,
an individual DD must be loaded, which in
addition, must always be the latest and most
up-to-date DD. Special adjustment options
such as e.g. the output of an echo curve, are
available neither with HART
® nor with PDM.
User-friendly adjustment is out of the ques-
tion. With VEGA’s adjustment software VVO,
those restrictions belong to the past.
The legitimate wish of many Profibus users
for a manufacturer-independent adjustment
tool without EDD has been realised in the
form of PACTware
TM . An association of a
number of process technology companies
developed PACTware
TM : a P P P P Process A A A A Automa-
tion C C C C Configuration T T T T Tool that can run different
manufacturer software tools under a stand-
ardized user interface and adjustment struc-
ture. Specialists call this technology Field
Device Transcription (FDT). Just as different
Windows printer drivers enable operation of
completely different printers under a single
user interface, PACTware
TM enables operation
of all field instruments under a single user
interface. Instrument-specific databases
(EDD), like those with SIMATIC PDM, are not
required.
As a result of this development, four adjust-
ment media are available for VEGA Profibus
sensors:
- adjustment with the PC and the adjustment
program VVO (VEGA Visual Operating) as
stand-alone tool, on the segment coupler or
directly on the sensor
- adjustment with the detachable adjustment
module MINICOM in the sensor
- adjustment with the SIMATIC PDM adjust-
ment program (requires EDD instrument
databases) from the process control
center
- adjustment with the manufacturer-inde-
pendent user interface PACTware TM on the
sensor, from the process control or on the
segment coupler.
Product description