Emerson FB3000 Manuale di installazione - Pagina 9
Sfoglia online o scarica il pdf Manuale di installazione per Apparecchiature industriali Emerson FB3000. Emerson FB3000 14. Remote terminal unit (rtu)
Anche per Emerson FB3000: Manuale di installazione sul campo (12 pagine), Manuale di installazione sul campo (6 pagine), Manuale di installazione sul campo (18 pagine)
Figure 3
shows how to wire a HART channel for devices which do not use loop power but get power
from an external power supply.
Figure 3. HART Wiring – External Power Supply
HD
HART Device
P
External 24V Power Supply
Analog Input Mode (HART Communication Disabled)
If you have an unused HART channel, you can use it as a 4-20mA analog input (AI current mode).
In FBxConnect, you must Enable the 250 Ohm Termination Resistor and set the HART Comm Mode
to Disabled.
Figure 4
shows two examples for wiring a HART channel as a 4-20mA analog input. In the figure, an
externally powered current loop transmitter connects to Channel 1 and a loop powerd current loop
transmitter connects to Channel 4.
FB3000 RTU HART
®
I/O Module Field Installation Guide
D301918X012
June 2021
7