VEGA VEGAFLEX 67 (-40…+150°C PFA insulated) Foundation Fieldbus - Manual (Page 9)

TS
d1
h1
h2
d2
1
L2
L1
Fig. 2: Interface measurement
1 Reference plane
d1 Distance to the interface
d2 Distance to the level
TS
Thickness of the upper medium (d1 - d2)
h1 Height - Interface
h2 Height - Level
L1
Lower medium
L2 Upper medium
The interface is directly processed by the sensor and outputted as
digital output signal.
The display of PLICSCOM and PACTware outputs the distance to the
interface (d1) in m(d).
Power is supplied via the H1 Fieldbus. A two-wire cable according to
Fieldbus specification serves as carrier of both power and digital data
for multiple sensors. This cable can be operated in two versions:
l via an H1 interface card in the control system and additional power
supply
l via a Linking device with HSE (High speed Ethernet) and
additional power supply according to IEC 61158-2
The DD (Device Descriptions) and CFF (capability files) necessary for
planning and configuration of your FF (Foundation Fieldbus) commu-
nication network are available in the download area of the VEGA
homepage www.vega.com under "S
ervices - Downloads - Software -
Foundation Fieldbus". The appropriate certificates are also available
there. A CD with the appropriate files and certificates can be ordered
via e-mail under [email protected] or by phone from one of the VEGA
agencies under the order number "DRIVER.S".
The backlight of the indicating and adjustment module is powered by
the sensor. Prerequisite is a certain level of operating voltage.
Output signal
Power supply and bus
communication
DD/CFF
VEGAFLEX 67 • Foundation Fieldbus 9
3 Product description
32306
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EN
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