How to set or edit a rule from the fleet board
Set or change the limit rule for a site from the fleet board's rule editor: metric, comparison, threshold, height, label, source document and optional email alert.
ON THIS PAGE
Steps
Open the fleet board
Go to /fleet. The board needs an Ops or Enterprise plan. On Starter or Pro the page shows The fleet board is on Ops., and you can reach the same rule editor from the Alerts page at /alerts instead.
Open the rule editor for a site
On a wide screen, click the pencil button at the end of the site's row, named Edit rule for and the site name. On a phone, use the Set a rule or Edit rule link under the site. A panel opens titled Name your limit. for a new rule or Edit the rule. for an existing one.
Tip: The sub-heading reminds you to use the limit from your own document. The Wind Agent never supplies a statutory limit.
Choose the metric and comparison
In Metric, pick Gust (the default for a new rule) or Mean speed. In Breach when, pick at or above (≥) or at or below (≤). Most wind limits use at or above.
Enter the threshold
Type your limit in Threshold, using the unit named in the field label, which follows your unit preference. It must be greater than zero.
Set the asset height
In Asset height enter the working height in metres, from 1 to 500. It starts at the site's saved height, or 10 m.
Name the limit and cite its source
In Label (up to 120 characters) give the rule a name such as the example Tower crane TC-2 in-service limit. In Source document (up to 300 characters, optional) record where the limit comes from. A blank label is saved as Gust limit or Wind limit.
Decide on email alerts
Tick Email me when the forecast breaches this rule if you want alerts. Then set Alert look-ahead in hours, from 1 to 72, with 24 as the default. The look-ahead box stays greyed out until the tick is in place.
Tip: Email alerts need a Pro plan or above. A new rule starts with the tick off.
Save the rule
Click Save rule. It shows Saving… and the board reloads that site's row. To discard changes, use the Close rule editor button at the top of the panel. The trash button Remove rule appears only when a rule exists.
01The parts of a rule
A rule is built from a metric (gust or mean speed), a comparison (at or above, or at or below), a threshold, an asset height and an optional source document, plus a label that names it. The threshold is stored internally in mph. The board compares the forecast against the rule to decide each site's lamp. Until a site has a rule, its lamp reads UNKNOWN with the reason No rule set with a prompt to add a limit and its row shows No rule. See what the lamps mean.
02Where the rule is used
On the fleet board, the rule is checked at the asset height you set: the board interpolates the model levels at 10, 80, 120 and 180 m, takes ensemble odds from the nearest ensemble level (10, 80, 100 or 120 m), and always takes gust odds at 10 m. Alerts are different: they evaluate the 10 m model level only, whatever height the rule names. The Alerts page says this when your height is not 10 m. A rule can therefore show STOP on the board without an alert email, and the other way round.
03Gust or mean speed
Choose whichever your own document uses. Gust compares the models' gust figure, which exists only at 10 m. If your height is not 10 m the editor reminds you that gust is scaled by the mean-speed ratio and the ensemble odds stay at 10 m. Mean speed compares the model's mean wind at your asset height. Heights below 10 m or above 180 m are extrapolated, and the editor warns that confidence is low. The board marks such sites EXTRAPOLATED.
04What saving and removing do
Saving always writes the rule, the asset height and the alert settings together. That means saving replaces any quiet period that was set elsewhere, so check alerts afterwards. Remove rule deletes the rule and also clears the alert settings and look-ahead for that site, so you would need to tick the email box again for a new rule. Removing a rule does not remove the site from the board; it simply goes back to UNKNOWN.
05Errors and limits
The editor refuses a threshold that is empty or zero with Enter your threshold from the governing document. It refuses a height outside 1 to 500 m with Height must be between 1 and 500 m. and a look-ahead outside 1 to 72 with a message that the alert look-ahead must be between 1 and 72 hours The server also caps the threshold at 250 mph. If saving fails you see the server's message, for example Email alerts start on Pro., or the fallback Could not save the rule. A failed removal shows Could not remove the rule. Try again and use /contact if it repeats.
Questions
What is the difference between Gust and Mean speed?
Gust compares your limit with the forecast gust at 10 m. Mean speed compares it with the forecast mean wind at your asset height. Your equipment document says which one applies, so follow it.
Can each site have its own rule?
Yes. Every site has its own metric, comparison, threshold, height, label and source. Open the editor from that site's row.
How does the rule change the lamps?
The lamp is STOP if the primary forecast reaches the limit or ensemble odds reach 70% in the shift window. It is WATCH at 40% odds or within 5 mph of the limit, GO if neither applies, and UNKNOWN when data or a rule is missing. See the shift window for the hours considered.
What happens if I remove a rule?
The site stays on the board but shows UNKNOWN, No rule and an empty lamp reason. Its alert settings are wiped too, so alerts stop until you save a new rule with the email box ticked.
Where do my limits come from?
From your own documents: a manufacturer's chart, a flight manual, a method statement or a permit. The editor says plainly that it never supplies a statutory limit. See set your limit and arm an alert rule.