2
3
1
4
~
=
Power supply
VEGACONNECT 3
PACTware /
TM
F
ig
.
21
:
C
onnecting the
PC
via
HART
to the signal cable
1
RS
232
connection
2
VEGAFLEX
65
3
HART
adapter cable for
VEGACONNECT
3
4
HART
resistor
250
Ω
N
ecessary components
:
l
VEGAFLEX
65
l
PC
with
PACT
ware and suitable
VEGA DTM
l
VEGACONNECT
3
with
HART
adapter cable
(
art
.
no
.
2
.
25397
)
l
HART
resistor approx
.
250
Ω
l
P
ower supply unit
N
ote
:
W
ith power supply units with integrated
HART
resistance
(
internal resistance approx
.
250
Ω),
an additional external
resistance is not necessary
.
T
his applies
,
e
.
g
.
to the
VEGA
instruments
VEGATRENN
149
A
,
VEGADIS
371
,
VEGAMET
381
).
A
lso usual
E
x separators are most of the time equipped
with a su
ffi
cient current limitation resistor
.
I
n such cases
,
VEGACONNECT
3
can be connected parallel to the
4
…
20
m
A
cable
.
7
.
2
P
arameter adjustment with
PACT
ware
F
urther setup steps are described in the operating instructions
manual
"
DTM C
ollection
/
PACT
ware
"
attached to each
CD
and
which can also be downloaded from our homepage
.
A
detailed
description is available in the online help of
PACT
ware and the
VEGA DTM
s
.
C
onnection via
HART
36
VEGAFLEX
65
•
4
…
20
m
A
/
HART
7
S
etup with
PACT
ware and other adjustment programs
31845
-
EN
-
080716