Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Power Meter Parameters (EATON IQ100 Series)

Power Meter Parameters (EATON IQ100 Series)

Power Meter Parameters (EATON IQ100 Series)

Hi all,

I was hoping somebody could help me understand the difference between the parameters being read from an EATON IQ 100 Power meter. I am putting together a Modbus template to poll various parameters from the meter. The Modbus map is attached. The site we the meter is installed is a diesel power microgrid. We are interested in using the meter data to calculate fuel consumption from the Diesel gens onsite. The meter provides a number of parameters that can be polled (see attached Modbus map). I was wondering if somebody could help to explain the difference between the following parameters W-hours, Delivered , W-hours, W-hours, Net, W-hours, Total. Which parameter should we be polling bearing in mind that we are interested in fuel consumption of the diesel Gen (i.e power being delivered by the generators).

Maybe a dumb question but with the meter offering so many options its a little confusing.

Thanks in advance.

RE: Power Meter Parameters (EATON IQ100 Series)

If I understand things correctly, you have registers for Whr-Del, Whr-Net & Wrh-Total. I think you forgot to attach the register list.

You would have to look at where the CT's are located, such as at the gen breaker, or at the utility interconnection breaker or perhaps some other location. Does the gen have any aux loads? Are they metered separately? Do you anticipate importing power? Once you have the answers that would help.

I would guess the meter would also have a Wrh-Receive register. I would think you want you calculations to be based on what the gen exports, minus the aux loads (if any). All of this depends on where the CT's are located and "seeing".

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close