CAN Sensor Network deployment?

[Doug Johnson-3]

Hi all..
I have a requirement for sensor/control nodes that measure
temperature, RH, and fan speed inside IT server racks.
There can literally be hundreds of these racks in a data
center.
All this data needs to be collected & made available to the
IT guys that run these data centers.

The Sensor data is pretty simple (maybe 8 parameters 2bytes
each) but
there may end up being a bi-directional requirement where
the sensor/control nodes will need some set-up by the IT guy
(like to set a temperature alarm point or such).

My limited networking knowledge is telling me that CAN (or
possibly CANOPEN) might make a good Fieldbus choice, as it
seems there are lots of choices addressing the Ethernet
connection requirement.

I'm looking for opinions about using CAN for this type of
network deployment, and advice on any "pre-canned" solutions
that might help me with this application.
Thanks for your consideration...
Doug


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[YAP-2]

On Thu, Jul 10, 2008 at 5:29 PM, Doug Johnson <doug@...> wrote:

> Hi all..
> I have a requirement for sensor/control nodes that measure
> temperature, RH, and fan speed inside IT server racks.
> There can literally be hundreds of these racks in a data
> center.
> All this data needs to be collected & made available to the
> IT guys that run these data centers.
>
> The Sensor data is pretty simple (maybe 8 parameters 2bytes
> each) but
> there may end up being a bi-directional requirement where
> the sensor/control nodes will need some set-up by the IT guy
> (like to set a temperature alarm point or such).
>
> My limited networking knowledge is telling me that CAN (or
> possibly CANOPEN) might make a good Fieldbus choice, as it
> seems there are lots of choices addressing the Ethernet
> connection requirement.
>
> I'm looking for opinions about using CAN for this type of
> network deployment, and advice on any "pre-canned" solutions
> that might help me with this application.
> Thanks for your consideration...
> Doug

CANOPEN might be the right way to go but also have a look at VSCP
(http://www.vscp.org) that will handle such a thing easy.

Cheers
/Ake

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[Torsten Krahl]

Hi Doug,
> My limited networking knowledge is telling me that CAN (or
> possibly CANOPEN) might make a good Fieldbus choice, as it
>  
CANopen is a good choice for this kind of application. You should take a
look at the CAN in Automation website http://www.can-cia.org. There you
will also find a list of manufacturers providing such "temperature
monitoring / controlling nodes" with CAN(open) interface
http://www.can-cia.de/pg/canopen/categories/index.html

 
Mit freundlichen Gruessen
With best regards

Torsten M. Krahl


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