VEGA VEGAFLEX 67 (-200…+400°C) Foundation Fieldbus User Manual

Page 10

Fig. 2: Interface measurement

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

Upper medium

The interface is directly processed by the sensor and outputted as
digital output signal.

The indication of the indicating and adjustment module and PACTware
output 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:

via an H1 interface card in the control system and additional power
supply

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

3 Product description

32314

-EN

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