Displaying + Controlling Electricity Consumption via CBus

Is there a way to get electricity consumption information for a project, so that it can be displayed on a Touchscreen? If this is possible .... how? I've looked everywhere, my boss is telling me that other companies are doing it, but I can't find anything that is only CBus based. If it is possible, I can then use a touchscreen with logic engine built in or a Pascal controller to keep electricity use at the customers required usage. Just haven't been able to find anything yet, does anyone know if this able to be achieved?

Thanks for any help.
Ltlbigchief

 

All you have to do is to find a electricity metering device with alogue output. Then using a 4 channel general input unit, you can pass the data to C-bus. For example using this 3 phase meter http://www.submetering4less.com/industrial.htm with the optional anolog output D-A CONVERTER http://www.submetering4less.com/accessories.htm you will get the desired result.

 

For displaying electricity usage, you could scan the electricity bill and then use it as a JPG for wallpaper on the Touch Screen.

What you are describing is termed "load shedding", and is more usually a function of a proper BMS (Building management System) than a simple light control system like C-Bus. The lighting represents a small proportion of the peak load in most commercial projects, and if you are actually able to turn off lights at times of peak demand then those lights mustn't be useful and therefore should have been switched on in the first place.
I hope that logic makes sense

 

Thanks guys!



The scanned electricity bill idea sounds good.

 

There is also a modbus gateway that is going to be released some time, or is probably out already, that can interface to a modbus power meter. I haven't tried it yet but it should work. That is my next project if time allows.

 

If you want to use the modbus gateway you will need also a computer for running the interface.

 

1-10v current Sensor

Hi Guys,

I am new to the site. we have a product that may do what you want. its a din rail mounted current clam. you pass your active cable through the unit and it will give you a 1-5v output up to 22A.

Specifications :
Supply Voltage : 10 to 30 Vdc
Consumption : 0.015 W
Current Monitoring Range : 200mΑ to 22A 50/60 Hz
Output : 0 to 5 Vdc
Insulation Voltage : 5 KVrms
Operating Temperature : 0?C to 70?C
Dimensions (W x H x D) : 1 DIN modules, 17.5mm Χ 88.5mm Χ 58mm


Price $110 Aus

Regards
Mike

 

If the meter has not already been installed, you can get an electronic from the authorities and most of them have either an RS232 interface or a pulsed output for every kWh.

I have an older P3 and a P1 from e-mail at the moment with both.

Getting the Empwin software to understand the RS232 data is proving impossible as they want over $1000 for it. They used to have a read only version for customers to use, but they discontinued that a few years ago and I cant find it anywhere.

A CT is a good way to go for a retrofit. 22 Amps may be a little small, but you can get bigger. You can also get 4-20ma output which I would say would be preferred if you mount the transducer a distance away from the general input module

Mick

 

Can you provide any more information in regards to this product? Where to buy.. etc...

 

current Meter

The Product is available from us direct. [email protected]

We are based in Melbourne and will send all over Australia. We are currently in the middle of revamping the web site for an upcoming media release on our products. I can be contacted directly on 0447315711.

Mike

 

did anyone already try this product with GI?