LabVIEW software for EKM-OmniMeter I v.3

General questions and discussions focused around the EKM Metering System. Discuss your meters, installations, and meter communications here.
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alejandroandreatta
Posts: 1
Joined: Thu Apr 16, 2015 9:49 pm

LabVIEW software for EKM-OmniMeter I v.3

Post by alejandroandreatta » Thu Apr 16, 2015 10:11 pm

Hi All,
I have developed vis to read data directly from the Omnimeter I. Perhaps it also works with other models.
I took on the project because the OmniMeter is part of a system to get electricity from a modified diesel engine that runs on syngas (Hydrogen and Carbon monoxide). The system automation involves collection engine parameters and power output to optimize the amount of syngas going into the engine and add diesel if necessary. It also collects data from several other sensors to automate the entire system from biomass input, gasification control, char output and engine control. It is a complex automation program I did in LabVIEW thus the need to get and process the OmniMeter data in real time.

Here is a screen shot:
EKM powermeter LabVIEW.PNG
EKM powermeter LabVIEW.PNG (59.67 KiB) Viewed 5933 times
The software is located here: http://documents.ekmmetering.com/LabVIE ... eter_I.zip

The vis were created using LabVIEW 2011

Perhaps someone else can find this useful.
Alejandro Andreatta

Jameson
Posts: 764
Joined: Fri Nov 04, 2011 7:42 pm
Location: Santa Cruz, CA
Contact:

Re: LabVIEW software for EKM-OmniMeter I v.3

Post by Jameson » Fri Apr 17, 2015 1:05 pm

Hello Alejandro,

Thank you very much for sharing this with our customers, I have already let a few customers know about this that had inquired about integrating our meters with LabVIEW.

And thank you too, for sharing what you are using the meter data for, it sounds like a very cool project. Please do keep us posted with your progress.

If anyone uses this, please chime in and let us know how it works for you.

Regards,
Jameson
EKM METERING
http://www.ekmmetering.com
831.425.7371

json2040
Posts: 1
Joined: Fri Apr 17, 2015 7:47 pm

Re: LabVIEW software for EKM-OmniMeter I v.3

Post by json2040 » Fri Apr 17, 2015 7:57 pm

Jameson,

I really appreciate you remembering and reaching out to me to notify me of this development. I'm surprised you remembered! Thanks!

Alejandro,

thanks a LOT for developing this VI and sharing it with us. I too have an experimental setup that requires simultaneous DAq from several instrument, the OmniMeter being one. I was breaking my head trying to figure out how to read the data via LabVIEW and your VI came to the rescue!

Anyways, I tried running the VI, albeit I had to save it to a previous version (2009) as that's what we have in the lab. The code runs without error but doesn't output any data. It even writes the data files with the headers, but that's that, no actual numbers. Any clue as to what might be going on? Do I have to specify the meter number in LabVIEW for the code to be able to recognize the meter and read data?

Would really, really appreciate any inputs/suggestions you can provide.

Again, thanks a bunch for sharing this!
Jignesh

Daniel_Ch
Posts: 6
Joined: Mon Jan 11, 2016 12:02 pm

Re: LabVIEW software for EKM-OmniMeter I v.3

Post by Daniel_Ch » Mon Jan 11, 2016 12:17 pm

Hi,

I want to receive data to this labview interface , but I'm not sure how to get it, in the interface, the meter communicates with rs485 protocol, do I need any converter to a rs232 or usb ?

Jameson
Posts: 764
Joined: Fri Nov 04, 2011 7:42 pm
Location: Santa Cruz, CA
Contact:

Re: LabVIEW software for EKM-OmniMeter I v.3

Post by Jameson » Mon Jan 11, 2016 12:47 pm

Hello Daniel,

Welcome to the forum.

I have never used this software, but yes I imagine that you will need either a USB to RS485 converter, or an RS232 to RS485 converter if you have an older computer with a DB9 port (we have these converters for sale on our website). They create a COM Port on your computer, so that your computer is able to interface with the meters over RS485.

Thanks,
Jameson
EKM METERING
http://www.ekmmetering.com
831.425.7371

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