Emerson FB3000 Instruction Manual page 61

Figure 3-10
HART channel only communicates to a single HART device. You choose whether a given channel
serves as an input or output in FBxConnect. The 24V internal loop power supply powers the HART
devices. The HART interface only sinks current, it cannot source current. As an output, each
channel simultaneously provides an analog current signal output (sink current only at 4-20 mA)
and a HART signal modulated on top of it.
Figure 3-10. HART Wiring – Point-to-Point Mode
HD
Figure 3-11
power from an external power supply.
Figure 3-11. HART Wiring – Point-to-Point Mode – External Power Supply
HD
P
I/O Configuration and Wiring
shows how to wire all four HART channels in point-to-point mode. In this case, each
HART Device
shows how to wire a HART channel for devices which do not use loop power but get
HART Device
External 24V Power Supply
Emerson FB3000 RTU Instruction Manual
D301851X012
October 2022
51