Oceanic OCS: No gaschange events

[Florian Klink]

Am 17.03.2014 07:48, schrieb Jef Driesen:
> On 16-03-14 23:04, Florian Klink wrote:
>> a friend of me diving with an Oceanic OCS recently started using
>> subsurface to log her dives.
>>
>> Unfortunately, it seems like the atom2 parser doesn't support tank
>> switch events on Oceanic OCS yet.
>>
>> We dumped all dives using the "universal test application".
>> .
>> In the xml sample at the time of the gas switch (at 21:45), there are
>> two <vendor></vendor> elements generated, one starting with "AA", which
>> looks like the gas switch event. The switch was done from air to EAN 52
>> (the 2nd mix):
>>
>> <sample>
>>
>>     <time>21:45</time>
>>
>>     <vendor type="5" size="8">AA0221296A033400</vendor>
>>
>>     <vendor type="5" size="8">024E74039B000001</vendor>
>>
>>     <temperature>25.56</temperature>
>>
>>     <depth>16.84</depth>
>>
>> </sample>
>>
>>
>> I attached the XML of this dive (sample from 21:45 starts at line 540)
>> and the memory dump.
>>
>> What about the "34" at the end meaning 52% oxygen in the newly
>> switched gas?
>> Do you have other samples to verify that this theory or should I ask
>> about some more dives with gaschanges to mixes with other amounts of
>> oxygen?
> 
> The 0xAA sample indicates a tank switch (for models with support for
> multiple tank pressure sensors). But it's certainly possible that it can
> also contain a gas switch. Gas switches are indeed not parsed yet for
> the Oceanic devices. Is the OCS an air integrated model (hosed or
> wireless), because in that case a tank switch sample doesn't make much
> sense.
The OCS does not have any air integration at all (wired/wireless).
However, it's able to calculate saturation, deco etc. with up to 3
different gases (starting always with gas one). On this dive, a switch
from gas 1 (air) to gas 2 (EAN52) was done at 21:45
> 
> Can you provide a full memory dump (together with the logfile), rather
> just one dive. That's a bit easier to work with.

> 
> I think I do have some other data from an OCS, but I have no idea
> whether there are any gas changes or not. I'm a bit in a hurry right
> now, but I'll have a look later at what data I have available.
I will ask if she also has some other dives with gas changes logged on
this DC, but this will also take some time :-)

Florian

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