48
7 Set up with PACTware and other adjustment programs
VEGAPULS 66 • 4 … 20 mA/HART - two-wire
28438-EN-170927
•
VEGACONNECT
•
Power supply unit or processing system
4
1
2
3
Fig. 34: Connecting the PC via HART to the signal cable
1 VEGAPULS 66
2 HART resistance 250 Ω (optional depending on evaluation)
3 Connection cable with 2 mm pins and terminals
4 Processing system/PLC/Voltage supply
Necessary components:
•
VEGAPULS 66
•
PC with PACTware and suitable VEGA DTM
•
VEGACONNECT
•
HART resistance approx. 250 Ω
•
Power supply unit or processing system
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. Common 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
For parameter adjustment of the instrument via a Windows PC, the
configuration software PACTware and a suitable instrument driver
(DTM) according to FDT standard are required. The latest PACTware
version as well as all available DTMs are compiled in a DTM Collec-
tion. The DTMs can also be integrated into other frame applications
according to FDT standard.
Note:
To ensure that all instrument functions are supported, you should
always use the latest DTM Collection. Furthermore, not all described
functions are included in older firmware versions. You can download
the latest instrument software from our homepage. A description of
the update procedure is also available in the Internet.
VEGACONNECT via HART
Prerequisites