http://sourceforge.net/p/owfs/mailman/message/19829236/
Em terça-feira, 28 de outubro de 2014, Roberto Spadim <robe...@spadim.com.br> escreveu: > There's a command to convert temperature of all sensors in the bus, that's > the simultaneous conversion > Check owfs file system there's a file just for this > Check ds1820 datasheet too , that's interesting when you need speed > > Em terça-feira, 28 de outubro de 2014, Coudy <co...@chovan.net > <javascript:_e(%7B%7D,'cvml','co...@chovan.net');>> escreveu: > >> Hi, what do you mean with "do a simultaneous conversion and read the >> values after the conversion is done on all sensors." ? >> Could you please add example ? >> I read data with cat /mountpoint/sensor/temperature. >> >> If temperature sensor is powered, then reading is faster compared to >> parasitic power ? >> >> >> 2014-10-28 11:40 GMT+01:00 Jan Kandziora <j...@gmx.de>: >> >>> Am 27.10.2014 um 18:08 schrieb Coudy: >>> > I have in Zabbix Timeout 15 seconds. I want to try restart server every >>> > hour, then I'll post results >>> > >>> Sampling 19 temperature sensors one-by-one takes up to 19 seconds. This >>> is due to the lengthy A/D conversion process. >>> >>> Either increase the timeout, sample 9-bit or 10-bit only, or power the >>> sensors, then do a simultaneous conversion and read the values after the >>> conversion is done on all sensors. The latter takes about 2 seconds for >>> 20 sensors in 12-Bit mode on a DS9097. >>> >>> Kind regards >>> >>> Jan >>> >>> >>> >>> >>> ------------------------------------------------------------------------------ >>> _______________________________________________ >>> Owfs-developers mailing list >>> Owfs-developers@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/owfs-developers >>> >> >> > > -- > Roberto Spadim > SPAEmpresarial > Eng. Automação e Controle > > -- Roberto Spadim SPAEmpresarial Eng. Automação e Controle
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