Honeywell enCore FC Series - HART Measurement Transmitter (Eex D) Via MFE7 Board (Multi-Master, Without Barrier) - Multidrop Mode (from Basic System 03-25)

6 Assembly Instructions
enCore FC
Operating Instructions
Page 77 of 120
6.4.15 HART Measurement Transmitter (EEx d) via MFE7 Board
(Multi-Master, without barrier) – Multidrop Mode (from Basic
System 03-25)
Hazardous Area Safe Area enCore device 1
MFE7 board
A1+ or A2+
A1− or A2−
SH
HART pressure
transmitter, EEx d
(multidrop)
enCore device 2
MFE7 board
A1+ or A2+
A1− or A2−
SH
+
−
(so urce mode;
primary master)
(sink mode;
secondary master)
+
−
HART temperatur
transmitter, EEx d
(multidrop)
Abb. 6-20: HART pressure and temperature transmitter (EEx d)
via MFE7 (primary and secondary master) – example
Characteristics MFE7:
• a galvanically isolated input safe circuit for a transmitter with HART
interface for every device; protocol converter integrated in input
− 1
st
device in source mode: