Honeywell XNX Technical Manual

XNX Universal Transmitter
Appendix A - HART
®
Protocol
171
Figure 237. XNX Multidrop HART Network Wiring - XNX Source

S1
S1
Source
Sink
Isolated
S2
S2
+V 1-1
EC TB-1
4-20mA
HART
16-32 VDC
6.2W max.
1-2
-V 1-3
1-4
+mA 1-5
-mA 1-6
S1
S1
Source
Sink
Isolated
S2
S2
+V 1-1
EC TB-1
4-20mA
HART
16-32 VDC
6.2W max.
1-2
-V 1-3
1-4
+mA 1-5
-mA 1-6
S1
S1
Source
Sink
Isolated
S2
S2
+V 1-1
EC TB-1
4-20mA
HART
16-32 VDC
6.2W max.
1-2
-V 1-3
1-4
+mA 1-5
-mA 1-6
250 Ω
minimum
XNX
Address 1
XNX
Address 2
XNX
Address 7
Emerson
Field Communicator
NOTE: Only addresses greater than 0 are valid for multidrop HART networks.
Other loop
powered
HART
devices
-
+
S1
S1
Source
Sink
Isolated
S2
S2
+V 1-1
1
6.
+
24
VDC
-
External HART
Automation Equipment

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