Honeywell XNX, Technical Manual

Page: 38 / 200

XNX Universal Transmitter
Section 2 - Installation and Operation 36
2.2.3 POD Connections
This illustration shows the connections available on each of the
terminal blocks for each type of personality board�
J1 - Remote HART ® Connector Only
P
ersonality
Boards
Option
Boards
A
B
C
D
E
F
Figure 35. XNX Personality Board Terminal Block Legend
Each of the personalities use a single terminal block for
connection with the exception of the IR personality, which
requires a second terminal block�
The personality boards also provide a dedicated pair of jumper
switches to define output of the transmitter as isolated 4-20mA,
Sink 20mA, or Source 20mA as well as a service jumper to allow
power to the loop to continue when the transmitter is being
serviced� A separate connector is used to activate local HART
(see Section 2�3�1 )�
Local HART provides an external access to control the
transmitter� An intrinsically safe (IS) barrier inside the transmitter
allows the user to attach an external hand-held interrogator
for programming and configuration� The external interface is
intrinsically safe� It is installed in the transmitter’s lower left
cable/conduit port�
Table A Table B
Board Type Function S1 S2 Board Type Connection Function
EC Personality
4-20mA
Output
Source
 
EC Personality
TB1
Power, 4-20mA
mV
Personality
Sink
 
mV Personality
Power, 4-20mA,
Sensor
IR
Personality
Isolated   IR Personality
Power, 4-20mA,
IR Power and
Signal
Table C Table D
Board Type Function S3 S4 Board Type Connection Function
IR
Personality
IR 4-20mA
Input
Source
 
EC Personality J2 EC IS Barrier
Sink   IR Personality TB2 Com A and B
Table E Table F
Board Type Connection Function Board Type Connection Function
Relay TB4
Remote Reset
Connector
Relay TB3 Relay Output
Modbus SW5
Bus Loop
Terminators
Modbus TB3 Data Connection
Foundatin
Fieldbus
SW5 Simulation Mode
Foundation
Fieldbus
TB3 Data connection
Note:
Open loop faults are not available due to HART, Modbus, and
Foundation Fieldbus interfaces where a 4-20 signal cannot be used.
In this case, open loop, 0mA must be used as the diagnostic.
The Option circuit boards vary depending upon the option
selected when ordered� Only one of the three available interface
options (relays, Modbus , or Foundation Fieldbus) can be
attached to the XNX transmitter� When installed, connections to
the options are made to connectors at the bottom of the POD�