Line of Sight Infrared Hydrocarbon Gas Detector AutroPath HC800 , 116-P-HC800/IGB, Rev. A, 2016-03-03
P/N 95-8744, v4.2 , rev. 3/16
Autronica Fire and Security AS
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appEnDix D
HART COMMUNICATION
Digital communication with the AutroPath HC800 is necessary to monitor internal status and to modify the factory
settings. This appendix provides guidance on establishing HART communication, and describes the communication
menu structure when using the AutroPath HC800 with the HART Handheld Communicator.
INteRCoNNeCtING tHe HARt CommuNICAtoR wItH tHe AutRoPAtH HC800
Connect the HART Communicator to the AutroPath HC800. Press the “on” key to switch on the HART Communicator.
The Online menu is the first menu to appear when the Communicator is properly connected to the AutroPath
HC800. This menu is structured to provide important information about the connected device immediately on
powering up the Communicator. This menu displays up-to-date device information including primary variable,
analog output, lower range value, and upper range value.
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The HART protocol incorporates a concept called the “Device Description Language” that enables all
suppliers of HART instruments to define and document their products in a single consistent format. This
format is readable by handheld communicators, PC’s and other process interface devices that support DDL.
DDL enables full interoperability of devices, regardless of manufacturer, allowing full functionality from any
HART device.
In the event that your Communicator does not establish communications with the AutroPath HC800, you may need
to ensure that the appropriate DDL’s for the AutroPath HC800 are included within your Communicator. To review
the device descriptions programmed into your HART Communicator:
1. From the Main menu, press to access Offline menu.
2. From the Offline menu, press New Configurations to access the list of device descriptions programmed into
your HART Communicator. The Manufacturer menu displays a list of each manufacturer with device descrip-
tions currently installed in your Communicator’s Memory Module. The standard 12 MB Memory Module is
recommended, as it allows for more device descriptions.
3. Select a manufacturer, and the Model menu displays, containing a list of currently installed device models
provided by the selected manufacturer.
4. Review the different manufacturers and models to determine the installed HART-compatible devices in your
Communicator.
If you cannot find the AutroPath HC800 device on your Communicator, the device revision you are looking for is
not programmed into the Memory Module. In this instance, you are limited to what is available using the generic
interface built into your HART Communicator.
The HART Communication Foundation (www.ccsi.com/hart) manages a library of Manufacturer Device Descriptions,
which are distributed to programming sites for inclusion in master devices. A complete listing of the HCF DD Library
is available for download in manufacturer and device type sequence.
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If a device is found, the HART Communicator displays the online menu. If no device is found, the Communicator
displays the Main menu. If no device is found, check the connections, verify the presence of a minimum of
250 ohms load resistance in series in the loop, and retry by selecting “online.” To poll multiple devices in the
loop, refer to the HART Communicator manual.
