Revision as of 20:49, 11 July 2015

Alarm message

An Alarm message indicates that a feed in to Darwin has stopped, or has re-started.

The alarms sent are as follows:

Alarm	Meaning
tdAreaFail	Darwin has detected that no data has been received from a single TD for a period of time
tdFeedFail	Darwin has detected that no data has been received from any TD for a period of time
tyrellFeedFail	Darwin has detected that its connection to Tyrell has failed

Each alarm has a unique identifier, and may be cleared with an alarm being received with a 'clear' element and the same unique identifier.

<alarm>
  <al:set id="20669">
    <al:tdFeedFail />
  </al:set>
</alarm>

<alarm>
  <al:clear>
    20669
  </al:clear>
</alarm>

Network Rail Open Data Feeds
Data Feeds	About the Feeds • Account States • Durable Subscriptions • Example Code ( PHP / C# / Java / Ruby / Node.js) • Advanced Uses • FAQ • Release Notes
RTPPM	RTPPM Feed
Train Movements	Train Movements Feed • Train Activation • Train Cancellation • Train Movement • Train Reinstatement • Change of Origin • Change of Identity • Change of Location • TSPEED Field • Planned Cancellations • Cancellation Codes
TD	TD Feed • C-Class Messages • S-Class Messages • Train Describers • TD Berths
VSTP	VSTP Feed
TSR	TSR Feed • Route Codes
SCHEDULE	SCHEDULE Feed • TIPLOC Records • Schedule and Location Records • Association Records • CIF Codes • How Scheduling Works • Allowances
Reference Data	Reference Data Feed • TOC Codes • CIF Codes • Delay Attribution Codes • Identifying Locations (STANOX, TIPLOC, NLC and 3-Alpha Codes) • STANOX Geographical Areas • Train Planning data (BPLAN)

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 </alarm>
 </pre>
+{{Navtable-DataFeeds}}
+[[Category:National Rail Enquiries Data Feeds]]