VEGA Capacitive electrodes EK Profibus PA - Manual (Page 28)

28 Capacitive electrodes EK - Profibus PA
Setup
4 Setup
4.1 Adjustment media
All VEGA Profibus sensors operate in profile
3 and can be adjusted with:
- the adjustment program VVO on a PC with
Profibus card
- VVO via VEGACONNECT 3
- the adjustment program PACTware
TM ,
under which VVO runs as a subprogram
- Siemens-Software PDM in conjunction with
an EDD (Electronic Device Description)
- the adjustment module MINICOM in the
sensor.
Adjustment with VVO on the PC
The adjustment program VVO enables user-
friendly ajustment of VEGA Profibus PA
sensors. All functions and options of sensor
adjustment are accessible. The program
runs under Windows
® on a PC with a Profi-
bus-Master-Class 2 interface card on Profi-
bus DP level as Master-Class 2 tool. The
VVO program accesses the VEGA PA
sensors via the DP bus, the segment coupler
and the PA bus. You can also directly access
the sensors via VEGACONNECT 3.
The adjustment program VVO from VEGA
makes the full range of functions of VEGA
sensors available and can update the entire
sensor software if necessary. The adjustment
program must be installed on a PC which is
equipped with a Profibus-master-Class 2
interface card (Softing) (see figure on the
next page).
The PC with Profibus interface card can be
connected directly at any location on the DP
bus by means of the standard RS 485 Profi-
bus cable.
The adjustment and parameter data can be
saved with the adjustment software on the PC
and protected by passwords. On request, the
adjustment can be also transferred 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 over the bus all VEGA sensors via
the Profibus interface card (e.g. from
Softing) as Master-Class 2, from the DP level,
through the segment coupler, on the PA level
right down to the individual sensor.
Setting the Profibus PA address
Since each bus participant must have its own
address by which it is identified on the bus,
the address must be adjusted before setup
of the meas. instrument. Depending on the
instrument version, this is done either with
the:
- mini coding switch
- Minicom
- V V O
Address adjustment with the mini
coding switch
The transmitter is delivered with the address
set as shown (all switches position "on").
1 2 3 4 5 6 7 8 on
If the mini coding switch is set to address
126 and higher (factory setting), the address
can be modified via software (with VVO) or
with the adjustment module MINICOM. We
recommend adjusting the address of the
sensor via the hardware (switch) before
connecting to the bus.