Like I said, it works great using the TMEX API. I use LabVIEW with it.
Colin
On Thu, Jul 10, 2014 at 2:36 PM, Colin Reese <colin.re...@gmail.com> wrote:
> Understood, but that's fine. Pretend I included the provision that the
> devices are not in parasite mode.
>
> Colin
>
>
>
> On Thu, Jul 10, 2014 at 11:50 AM, Eric Vickery <eric...@hobby-boards.com>
> wrote:
>
>> Colin,
>>
>> Unless the devices are externally powered that won’t work reliably. For
>> instance a DS19S20 requires a strong pull-up during the entire conversion
>> time so if you are issuing more Match ROM commands during the conversion
>> time the bus activity may keep the DS18S20 from completing the conversion
>> successfully.
>>
>> Eric
>>
>> On Jul 10, 2014, at 1:09 PM, Colin Reese <colin.re...@gmail.com> wrote:
>>
>> Hello,
>>
>> After talking with iButtonLink, it was brought to my attention that
>> without
>> additional power, it is possible to have unsuccessful simultaneous read if
>> too many sensors are on the network, due to current draw during the
>> conversion.
>>
>> Using the TMEX API, I can perform a match ROM and then issue a conversion
>> command, and then come back later to read the converted value. This way I
>> can issue conversion commands for, say, 20 ROMs without waiting for
>> conversion more than once.
>>
>> Is there an analogous feature in owfs, e.g. a 'simultaneous' with a
>> specified group of ROMs?
>>
>> Thanks,
>> Colin
>>
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>> Edition
>> Quickly connect people, data, and systems into organized workflows
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Turn processes into business applications with Bonita BPM Community Edition
Quickly connect people, data, and systems into organized workflows
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http://p.sf.net/sfu/Bonitasoft
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