User Manual

2 4

OPEN

TWIST

USB

LOCK

Fig. 28: Connecting the PC via HART to the signal cable

1 Sensor

2 HART resistance 250 Ω (optional depending on processing)

3 Connection cable with 2 mm pins and terminals

4 Processing system/PLC/Voltage supply

5 Interface adapter, for example VEGACONNECT 4

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, VEGAMET 381, VEGAMET 391. Common Ex separators are

also usually equipped with a suﬃcient current limitation resistance. In

such cases, the interface converter can be connected parallel to the

4 … 20 mA cable (in the previous illustration dashed).

7.2 Parameter adjustment with PACTware

As an alternative to the indicating and adjustment module, the sensor

can also be conﬁgured via a Windows PC. For this purpose, the

conﬁguration software PACTware and a suitable instrument driver

(DTM) according to the FDT standard are required. The actual

PACTware version as well as all available DTMs are compiled in a

DTM Collection. Furthermore the DTMs can be integrated in other

frame applications according to the 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. The latest instrument

software can be also downloaded from our homepage. A description of

the update procedure is also available in the Internet.

Further setup steps are described in the operating instructions manual

"DTM Collection/PACTware" attached to each DTM Collection and

which can also be downloaded from the Internet. Detailed descriptions

are available in the online help of PACTware and the DTMs.

Via the interface adapter

and HART

Prerequisites

VEGAPULS 62 • 4 … 20 mA/HART two-wire 43

7 Setup with PACTware

36503-EN-100607