● Connection of a two-wire field device with external power supply without communication
resistor
● WirelessHART connection parallel to wired HART communication
Select which of these options you require for your installation.
6.2.2
Two-wire field device with power supply for the device
When you connect a two-wire field device, the following functions are possible via terminals 1
and 2:
● Power supply of the field device
● Current measurement in the range from 4 to 20 mA
● Digital HART communication
Connect up the WirelessHART adapter as illustrated:
:$57DGDSWHUZLWK
WHUPLQDOVWR
)LHOGGHYLFH
Figure 6-2
Connection of a two-wire field device and supplying the device with power
6.2.3
Four-wire field device
When you connect a four-wire field device, the following functions are possible via terminals 2
and 3:
● Current measurement in the range from 4 to 20 mA
● Digital HART communication
Connect up the WirelessHART adapter as illustrated:
Connecting
6.2 Wiring diagrams
WirelessHART Adapter SITRANS AW200
34
Operating Instructions, 02/2020, A5E02777161-AA
