Cumulus.ini (preserving history): Difference between revisions

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====Introduced for problems with Fine Offset family:====
*These parameters were introduced for Cumulus 1 to cope with Fine Offset stations and their clones, but a few of the parameters below may be found to be useful more widely.
*Some parameters are set on screens, other attributes do not appear in the '''cumulus.ini''' file unless they are added using an external editor, but the values still have a recommended default value as explained below.
*Apart from the 2 synchronising parameters, none apply to MX.
 
{| class="wikitable" border="1"
*1 = Enabled, Cumulus will restart if it detects that a Fine Offset station is unplugged. '''Note:''' Unless the station has been manually plugged in again, a Cumulus restart has no benefit; normally the station should be checked to be plugged in before Cumulus is ever started and the station then left plugged in.
 
Not applicable to MX
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|SyncFOReads=0
A Fine Offset station will be writing to its memory every 48 or 60 seconds (depending on model); Cumulus can attempt once a day to identify when this update of memory occurs, and thereafter try not to read the memory at update time, by using what is called a synchronisation mode of operation. See next parameter.
 
Cumulus 1 and MX
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|FOReadAvoidPeriod=3
|Add this line to cumulus.ini [Station] section if you wish to change the default, this parameter used to fine-tune the previous parameter.
*2 Minimum value
 
*3 = default value
Sets the interval (in seconds) during each 48 (or 60 for some models in Cumulus 1) second of station logging period when Cumulus will avoid reading the station data to try and minimise lock ups. If the clock drifts more than this value in 24 hours, then Cumulus may cause the station to lock up when reading the data. The actual station clock drift gets logged to the diags file when the re-synchronise (see last parameter) takes place, this will give an idea of whether it would be useful to adjust this setting.
 
Applicable to both Cumulus 1 and MX. MX applies both 48 and 60 second avoidances regardless of model.
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|ReportLostSensorContact=0
*1 = reporting on (default)
Option to turn off reporting of 'lost sensor contact' for Fine Offset stations. (added Cumulus 1.9.4 b.1070)
 
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|UseZeroBearing=0
|Selected on same screen as other parameters. Intended for weather stations that do not supply a wind bearing, so Cumulus has to calculate it from reported compass direction.
*0 = Disabled, Cumulus displays the current bearing read from the station (i.e. the last direction the wind was blowing from before it became calm). Note that the average wind bearing will always display zero bearing if there has been no wind for the last N minutes (where N is defined by previous parameter if present but defaults to 10), as the average bearing takes wind speed into account.
*1 = Enabled, Cumulus display a bearing of zero (and '---' for the compass point) when the wind is calm (note when not calm, bearing is 360 for true North)
|-
|EWdisablecheckinit=0
*1 = Ignores part of memory (see [[FAQ#When_I_start_Cumulus.2C_I_get_the_error_message_.22The_station_is_not_initialised.22]]).
 
Not applicable to MX.
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|EWduplicatecheck=0
For example one problem is that "55 AA" repeats at the start of the second line of data. Those bytes are only supposed to appear at the start of the first line (or so I am told).
 
Not applicable to MX
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|EWpressureoffset=x.y
Got a pressure problem with a Fine Offset station when the pressure 'offset' that Cumulus reads is garbage, so Cumulus just uses zero?
 
Tell Cumulus what offset to use, by using an external text editor to insert this parameter where x.y is your pressure offset in in mb or hPa [i.e. your station (absolute) pressure subtracted from the sea-level (relative) pressure]. Applies to Cumulus 1 and MX.
 
|}
 
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