3 Function and System Design
Field Xpert
12
Hauser
3.3
Connecting to FOUNDATION fieldbus devices
Caution!
• Proof of intrinsic safety must be checked when additional devices are introduced into a loop.
3.3.1
FFblue Bluetooth modem
Field Xpert communicates with a FOUNDATION fieldbus device via the FFblue Bluetooth modem.
The connection between the Field Xpert and the modem is wireless. The modem can be connected
at any point on the H1 fieldbus segment, or directly to the fieldbus terminals of the device itself. The
modem can also be used in explosion hazardous areas, provided that the Field Xpert used with it is
also certified for Ex applications.
Fig. 3-7: Connection of FFblue modem to FOUNDATION fieldbus H1 segment
3.3.2
WiFi – FOUNDATION fieldbus connection via gateway
Fig. 3-8 shows the equipment architecture, whereby the Field Xpert communicates with the
SFC162 gateway via a WiFi access point. The SFC162 gateway is connected in parallel to the
controller. it has four channels, each of which may be connected to a different FOUNDATION
fieldbus H1 segment.
Fig. 3-8: Equipment architecture for FOUNDATION fieldbus network (Non-Ex)
F5
F1
F2
F3
F4
OK
Field Xpert
Controller
with fieldbus power
conditioner
FFBlue
FOUNDA
TION fi
eldbu
s
FF/H1 Blu
etooth
Status
Traffic
SFC162 Visitor
with
power supply
SCADA visualization
F5
F1
F2
F3
F4
OK
WiFi
access
point
Field Xpert
Ethernet
ON
RS-232
ETH
FOUNDATION fieldbus H1
Controller
Channel 1...4
.
