Setup With Pactware; Connect The Pc - Siemens SITRANS LG240 Operating Instructions Manual

Via the interface adapter
directly on the sensor
Connection via HART
46
7

Setup with PACTware

7.1

Connect the PC

Fig. 20: Connection of the PC directly to the sensor via the interface adapter
1 USB cable to the PC
2 Interface adapter
3 Sensor
1
5
Fig. 21: Connecting the PC via HART to the signal cable
1 Sensor
2 HART resistance 250 Ω (optional depending on evaluation)
3 Adapter cable for HART modem
4 Processing system/PLC/Voltage supply
5 HART modem
Note:
For power supply units with integrated HART resistance (inner resist-
ance approx. 250 Ω), there is no additional external resistance neces-
sary. Standard Ex separators are often provided with a sufficiently
high current limitation resistance. In such cases, the modem can be
connected in parallel to the 4 ... 20 mA cable.
SITRANS LG240 - Operating Instructions
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PBD-51041037