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Ti Emeter MSP430F6779 UART communication protocol

YUVARAJOO SUBRAMANIAM
Prodigy 115 points

Hi,


I have went through the emeter firmware source code and GUI source code. I am having difficulty to understand some of the parts.

I just require to get the calibrated meter readings on voltage,current, active power, reactive power and power factor for 3 phase with neutral current. I am writing a .net c# application to communicate with the meter. If someone can send me the protocol to read the meter without using the calibrator GUI will much appreciate.

Hope someone can help.

  • 0
    TI__Expert 4215 points

    Hi,

    I have assigned someone to help you with a method to read the meter, in the meantime, have you consulted the AppNote?
    www.ti.com/.../slaa577g.pdf

  • 0
    TI__Intellectual 2595 points

    I am not clear what you are looking for. The protocol we use is based on the packet structure used for DL/T645 communication, and various other protocols. If you look at the code which constructs these frames, in the example meter application source code, it should be easy to see how the elements of a frame are assembled, and the sumcheck is calculated and added at he end. The meter acts passively, and simply responds to requests from the host side. One host request ellicits ones response from the meter. The source code for the software is provided. It should be easy to follow how the messages are assembled in that, and write your own code to match the structure of the existing messages.

  • 0 in reply to Steve Underwood
    TI__Expert 4215 points
    Hi all,

    Closing this thread due to no response, feel free to re-open if an issue comes up.

    Sincerely,
    Sean

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