VEGA VEGAFLEX 61 4 … 20 mA_HART four-wire - Manual (Page 35)

N ecessary components:
l VEGAFLEX 61
l PC with PACTware and suitable VEGA DTM
l VEGACONNECT
l P ower supply unit or processing system
1
5
2 4
3
OPEN
TWIST USB
LOCK
Fig. 18: Connecting the PC via HART to the signal cable
1 VEGAFLEX 61
2 HART resistance 250 Ω (optional depending on processing)
3 Connection cable with 2 mm pins and terminals
4 Processing system/PLC/Voltage supply
N ecessary components:
l VEGAFLEX 61
l PC with PACTware and suitable VEGA DTM
l VEGACONNECT 4
l HART resistance approx. 250 Ω
l P ower supply unit or processing system
Note:
W
ith 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. C
ommon Ex separators are
also usually equipped with a sufficient current limitation resistance. In
such cases, VEGACONNECT 4 can be connected parallel to the
4 … 20
mA cable.
7 .2 Parameter adjustment with PACTware
F
urther setup steps are described in the operating instructions manual
"DTM C ollection/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 61 • 4 … 20 mA/HART four-wire 35
7 S et up with PACTware and other adjustment programs
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EN
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