VEGA VEGAFLEX 66 (-110…+400°C) Foundation Fieldbus - Manual (Page 37)

2
3
1
4
~
=
Power supply
VEGACONNECT 3
PACTware / TM
Fig. 19: Connecting the PC via HART to the signal cable
1
RS232 connection
2 VEGAFLEX 66
3 HART adapter cable for VEGACONNECT 3
4 HART resistor 250 Ω
Necessary components:
l
VEGAFLEX 66
l
PC with PACTware and suitable VEGA DTM
l
VEGACONNECT 3 with HART adapter cable (art. no.
2.25397)
l
HART resistor approx. 250 Ω
l
Power supply unit
Note:
With power supply units with integrated HART resistance
(internal resistance approx. 250 Ω), an additional external
resistance is not necessary. This applies, e. g. to the VEGA
instruments VEGATRENN 149A, VEGADIS 371, VEGAMET
381). Also usual Ex separators are most of the time equipped
with a sufficient current limitation resistor. In such cases,
VEGACONNECT
3 can be connected parallel to the 4 … 20 mA
cable.
7.2 Parameter adjustment with PACTware
Further setup steps are described in the operating instructions
manual "DTM Collection/PACTware" attached to each CD and
which can also be downloaded from our homepage. A detailed
description is available in the online help of PACTware and the
VEGA DTMs.
Connection via HART
VEGAFLEX 66 • Foundation Fieldbus 37
7 Setup with PACTware and other adjustment programs
32765
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EN
-080716