Honeywell XNX User Manual

XNX Universal Transmitter Quick Start Guide
37
Warning: Power
externally supplied.
Disconnect at source
prior to servicing.
3-5
3-4
3-3
3-2
3-1
3-6
3-7
3-8
3-9
C
NC
TB4
Remote
Reset SW
Relay Ratings
250VAC 5A
24VDC 5A
NO
C
NC
NO
NC
C
NO
Fault Level 2 Level 1
TB-3 RELAY
TB3 Relay Connections
Warning: Power externally
supplied, disconnect at source
prior to servicing
Relay Contact Ratings:
250 VAC 5 amps
24 VDC 5 amps
Relay
TB3
1 NC
2 C
3 NO
4 NC
5 C
6 NO
7 NC
8 C
9 NO
TB4
1 1
2 2
1
2
3
4
5
6
7
8
9
TB3
1
2
TB4
Figure 24. XNX relay option board and terminal block
5.3 Modbus
®
Modbus
®
connections to the XNX are made through a pluggable terminal block
on the Modbus® interface circuit board. A loop termination point (SW5) is
included on the Modbus® interface board to provide termination of the Modbus®
loop.
Terminals 3-1 through 3-4 are provided to facilitate bus wiring;
there is no internal connection to other XNX circuitry. Terminal
3-1 is connected internally to 3-2. Similarly, terminal 3-3 is
connected to 3-4
3-5
3-4
3-3
3-2
3-1
3-6
3-7
3-8
3-9
3-10
A
-
-
+
+
A
B
B
S
TB-3 Modbus
S
Use shorting jumper
supplied to maintain
connection during
service
S5 EOL Term
Out
In
R
T
=120
TB3 Modbus Connections
Use Jumper
to maintain
connection
during service
SW5 - Loop Termination
Modbus
®
TB3
1 +
2 +
3 -
4 -
5 A
6 A
7 B
8 B
9 S
10 S
1
2
3
4
5
6
7
8
9
10
Figure 25. XNX Modbus
®
option board, terminal block, and jumper switch

Honeywell XNX Specifications

General

Ingress Protection	IP66/67
Product Type	Universal Transmitter
Enclosure Rating	IP66/67
Display	LCD
Communication Protocols	HART, Modbus, Foundation Fieldbus
Power Supply	24 VDC nominal, 18-32 VDC
Operating Temperature	-40°C to +65°C (-40°F to +149°F)
Material	Aluminum or Stainless Steel
Gas Types	Toxic, Oxygen, and Combustible gases
Output	4-20 mA
Relays	3 programmable relays
Approvals	ATEX, IECEx, UL, CSA
Sensor Compatibility	Electrochemical, catalytic, infrared, and other sensor types