Hello,
I'd like to figure out what might be the best way to intelligently
graph HVAC thermostat for a project I am working on. I have an RRD file with
temperature, cooling setpoint, heating setpoint, cool flag (are we cooling 1/0)
and then heat flag (are we heating 1/0).
Anyone have some examples they can share or suggestions on how I might setup
the def's to graph what I need. Thinking about a line for heating/cooling
setpoints, but I'd like to see some indicating of when we are cooling or
heating. I've experimented with using a CDEF and multiplying the temperature by
the heating/cooling value, but its not working as I expect. I don't get an
instant jump when calling for cool.. It kind of steps up and I assume this is
due to the averaging. I would have expected to graph temperature when not
cooling or heating, graph cooling in a different color when cooling and same
for heat.
It would be nice to just throw a vline when calling for cool or heat, but I
don't think it is possible to capture the "transition" of the values and
determine the time to put the vline at.
thanks,
-jr
_______________________________________________
rrd-users mailing list
rrd-users@lists.oetiker.ch
https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
