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

28 Capacitive electrodes EL - 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
- the Siemens software PDM in conjunction
with an EDD (Electronic Device Descrip-
tion)
- the adjustment module MINICOM in the
sensor.
Adjustment with VVO on the PC
The adjustment program VVO enables user-
friendly adjustment of VEGA Profibus PA
sensors. All functions and options of sensor
adjustment are accessible. The program
runs under Windows
® on a PC with a
Profibus-Master-Class 2 interface card on
Profibus DP level as Master-Class 2 tool. The
VVO program accesses the VEGA PA sen-
sors via the DP bus, the segment coupler
and the PA bus. You can also directly access
the sensors via a 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 adjust-
ment program must be installed on a PC
which is equipped with a Profibus-Master-
Class 2 interface card (Softing) (see illustra-
tion on the next page).
The PC with the Profibus interface card can
be connected directly at any location on the
DP bus by means of 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. 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. The address setting
can be done in different ways:
- mini coding switch
- Minicom
- V V O
Address adjustment with the mini cod-
ing 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 or 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.