Connecting A Hart Field Communicator - GasTech D-Guard2S Operator's Manual

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D-Guard
16.

Connecting A HART Field Communicator

For D-Guard-2 detectors that are fitted with HART communications, interaction with the detector may be done via a
HART master communication device such as a HART field communicator / configurator or a system controller.
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HART enabled D-Guard detectors are fitted with an IP68 rated connector (communications port) to allow connection
of a field communicator.
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A suitable cable to connect between a standard field communicator and the D-Guard is available from GasTech.
Connections at the communicator are polarity independent.
To start communications, open the communications port waterproof cap and plug the data connector into the port.
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D-Guard is by default set to polling address 0 and is set for point to point (variable current loop) operation.
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D-guard does not use Device Description type files and will be discovered as a generic device to a field communicator.
Once successful communication has been established, the HART communication icon will start to flash (refer to
section 13.1.1).
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For complete details regarding D-Guard HART communications, refer to the D-Guard HART specification document
(This document is available from the Gastech website www.gastech.com.au).
Remove the waterproof cap to access the communications port. Note that the detector is rated IP68 ONLY if this cap or the
mating connector are in place. Without the cap or connector fitted rating is IP66 only.
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