-more info?, ok.
- select positive pressure button, fan turns on and adds air into
target room. If the difference in values between the two atmospheric
pressure is greater than prescribed, then turn down fan.
- select negative pressure button, fan reverses and sucks air out of
target room. If value between sensors is greater than prescribed then
turn down fan.
As for BACnet, the controller TS7390 will have a BACnet stack
communicating with the two sensors and actuator which is controlling
the fan. If the controller board goes down, the actuator should have
enough smarts to gather input data from the sensors via BACnet to
continue or fall into a preset default state.
Obviously, the sensors and actuator will need to be equipped with baby
boards capable of holding assembly code for BACnet and some operations.
Any suggestions on which board would work best for a typical sensor
and/or actuator? These baby boards would need to be low cost.
Thanks
Rob
--- In "Rod Nussbaumer" <> wrote:
>
> --- In "Robert" <robert@> wrote:
> >
> > Thank you PJE,
> >
> > I'm looking to control an actuator in a 2-way fan system by measuring
> > the atmosphere pressure between two rooms. In other words, a special
> > room has to be either positive air pressure or negative air pressure,
> > at the user's command on the controller board. Also, I'm looking at
> > using BACnet as the protocol of choice with the TS-7390.
> >
> > If you can help me with links or anything, I would appreciate it.
>
> I don't think that information is very useful to determine how to
> prototype a GUI (or other) interface. However, I would be interested
> to know about your plans for interfacing to BACnet. Will you be using
> an open source BACnet stack, commercial stack, other? Will your
> TS-7390 become a BACnet device with its own pressure transducer, or
> will you simply be monitoring a BACnet device/object that does the
> pressure measurement?
>
> --- rod.
>
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