- √ - Performance on 1-Wire plugin?

[Rasmus7700]

Hello.
I was wondering, what is the performance on the 1-Wire plugin? Will there be long reaction time eg. from an input is detected to it has transmittet a telegram to the KNX bus?

I read in the plugin that:

"'Cycle’ = timeperiod between two sensor cycles. Default 300 seconds. If you decrease the cycle to much you could destabilise the bus, because of the increased power consumption."

[2ndsky]

According to the plugin source code, normal sensors have a cycle time of 300 seconds, IOs of 5 seconds and iButtons of 0.5 seconds.

[Rasmus7700]

According to the plugin source code, normal sensors have a cycle time of 300 seconds, IOs of 5 seconds and iButtons of 0.5 seconds.

Meaning that IO's will take at least 5 seconds to be registrated and processed?

[2ndsky]

I think so, yes. 1Wire is useful for something like reed contacts but not for light switches.

[Rasmus7700]

Argh okay... That doesn't work for me that long delay....
I must move on with the arduino project....

[StefanW]

Just for Information, this is not a limitation of 1-Wire itself.

Last Friday, we showed on a regular's table in Munich, our new 1-Wire Professional Busmaster with 150 Sensors and 150 LEDs attached.

In Group of five LEDs, the LEDs run as a moving light within 0,8 seconds from left to right. Instead of LEDs, one could also use REED-contacs. Checking 150 REEDs in less than a second is not to bad. And we're working on some more improvements.


Regards

Stefan

[Rasmus7700]

Okay, that sounds pretty amazing, concidering the whole running from a one wire installation ... Then I'm curious of what it then is that makes this lousy performance?

[Bernator]

because onwire cannot send active, its necessary to poll and this is done in a fix time interval....