Specifications

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Local IS HART Port (Optional)
Description Provides externally accessible IS connections to the XNX transmitter to enable HOT connection of HC275/375 HART or equivalent hand held configurator.
Installation Fitted to one of the cable entries on the XNX transmitter.
Environmental Protection Terminals protected by cover to IP 66 when not in use
Relay Module (Optional)
Description Provides three fully user configurable relay outputs that can be switched based on the current gas level and/or status of the transmitter. Provides 2 x SPCO
alarm and 1 x SPCO fault relays. Single Pole Double Throw SPDT. Option PCB Factory installed in display module.
Installation Fitted into housing base either at the factory or in the field by qualified service engineer.
Rating Maximum: 240 VAC, 5A (non inductive load) / 24 VDC 5A CES Minimum: 5V, 10mA (non inductive load)
Electrical Connections Fault: Common, Normally Open, Normally Closed
Alarm 1: Common, Normally Open, Normally Closed
Alarm 2: Common, Normally Open, Normally Closed
Configuration Default Configurable Options
Fault Relay: Fault Relay:
Normally energized Normally energized / normally de-energized
Non latching None
Signal inhibit as fault Enable/disable
Alarm 1 / 2 Relays: A1 / A2 Relays:
Normally de-energized Normally energized / de-energized
Non latching Latching / non latching
Alarm rising on gas reading Alarm on rising / falling
Alarm level 20% and 40% of scale Alarm level 10% to 90% of full scale
Hysteresis of 2% of scale
Re-setting of Latched Relays Easily accessible interface on display (if used) or via HART interface (local or remote)
Note Use of the Relay Module or ‘Other’ Communications Module (E.g. Foundation Fieldbus) is mutually exclusive. However, relay function may be used in conjunction
with standard communication output i.e. 4-20mA with HART.
Relay Specific Functions via Relay status information / Reset of latched conditions / Configuration of relays Forcing of relay state
HART Interface Reset through non intrusive User Interface. Remote Switch closure using Remote Reset input Remotely through HART
Modbus RTU Module (Optional)
Description The Modbus output module provides an Isolated RS485 output to enable the connection of the XNX transmitter to a multi-drop Modbus network
Installation Fitted into housing base either at the factory or in the field by qualified service engineer.
Connections RS485+, RS485-, Drain
Physical Layer Isolated RS485, 1200 to 19.2K Baud
Maximum No. of Nodes 254 XNX compatible transmitters only
Protocol Modbus RTU
Functions Supported As per Foundation Fieldbus Module (Optional) - see above Foundation Fieldbus Module (Optional)
Description Foundation Fieldbus compliant digital communications interface enables connection of the XNX transmitter to a multi-drop Foundation Fieldbus H1 network.
Installation Fitted into housing base either at the factory or in the field by qualified service engineer.
Connections Sig+, Sig- and Screen
Physical Layer Conforms to IEC 1158-2 and ISA 50.02, 31.25Kbits/s
Maximum No. of Nodes 32
Functions Supported Gas Reading Detailed Sensor Information Including: Detailed Fault and Warning Information:
Gas Name and Units of measurement Optical Signal Level Fault and Alarm History
Instrument status (OK, warning, fault, over-range) Dynamic Reserve (Excel Only) Zero Calibration
General/Device Information Raw reading
Remote zero and span calibration (detector dependent) 24V supply voltage
Temperature
RTC (Excel Only)
Calibration and Configuration status
Further information is available upon request.
* Not available at time of publication. Please call your Honeywell Analytics sales person.
XNX
TM
is a registered trademark of Honeywell International.
HART
®
is a registered trademark of the HART Communication Foundation.
MODBUS
®
is a registered trademark of Schneider Automation Inc.
Foundation
TM
is a trademark of Fieldbus Foundation.