• State
  • Locked Locked
  • Replies 13 replies
  • Subscribers 52 subscribers
  • Views 2085 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

AFE031 powerline communication

Stephen Thomas
Intellectual 710 points
Other Parts Discussed in Thread: AFE031

Hi,

I d like to build a power line communication card.i was exploring AFE031.

I have a analog communication interface that employs a 4 wire analog communication interface that transmits/receivies Plain Tones  via telephone lines.

I d like such that the same analog interface card should be able to select whether to use the  telephone wires or Power Lines for communication as the transmission media.

In such a case what will be the simplest solution to achieve the same?

So say

1.if im using telephone wires i will be using 4 wire standard interface.

2.if im using power line communication interface then

Can the same 4wire/2wire interface can be used to communicate to another Power line Card (say for eg employing AFE031).I ve seen a two wire interface in the same..Can i use it?

or shall i use the decoded signals in the digital domain in the analog card and shall employ some digital communication standard to communicate with the AFE031 in the power line communication card?

Thanks for any help

Regards

Stephen

  • 0
    TI__Expert 6930 points

    Hi Stehpen,

    It should be possible to select between the two methods...it is probably best if you send to me a block diagram of the network showing your proposed 4 wire and 2 wire schemes.  Also when using PLC over the 2 wires what other voltages/signal will be present on those 2 wires?  Do you have any data rate requriements for the PLC and are you restricted to a particular range of carrier frequencies on the PLC?  Can you think of any coexistence concerns or coexistence requirements when operating over the 2 wire and 4 wire schemes simultaneously...i.e. do they both operate at the same time or always separate times?

    Regards,

    Ed Mullins

    mullins_ed@ti.com

     

  • 0 in reply to Edward Mullins
    Prodigy 65 points

    Hello Mullins Ed,

    we are building a Plc modem with afe031 and f28069. We a wondering that how to config the modem for a radial network (one master, multiple slaves). Is this in the data frame that we define the ip of each slave ?

    Secondly, what does TI means the Data concentrator ?

    With my best regards,

  • 0 in reply to Anh-Tuan Phung
    TI__Genius 9975 points

    Hello Anh-Tuan Phun,

    My apologies for the delay in the reply; I am checking with our systems team to answer your radial network question.

    You can find more about our data concentrator solutions at: http://www.ti.com/lit/ml/slyt431a/slyt431a.pdf

    Best,

    Jose Duenas

  • 0 in reply to Anh-Tuan Phung
    TI__Intellectual 2095 points

    Hi Anh-Tuan,

    You can set a device to master or device by configuring it via host messages. Please, refer to the attached message sequence for G3.  With F28069, G3 can be configured as mini-DC (supporting up to 30 nodes) or device. For PRIME, it can be run as service node (slave) only on F28069. You will need our SGI platform to run as master node (Data concentrator). Using SGI platform for G3 or PRIME DC will allow you to support up to 1000 nodes.

    The Data concentrator means master.

    4024.Host Message Sequence.pdf

     

  • 0 in reply to Wonsoo Kim
    Prodigy 65 points

    hi Kim,

    thank you for your response. Because we are at the beginning of the development so that some questions may be very stupid. I am wondering that using G3 or PRIME, we must only concentrate on the content that have to be transfered. What happen with we want to develop a software that allow users to manage their system using PLC. For example we develop a smart home management system. How to config this with G3 or Prime.

    Thank you.

  • 0 in reply to Anh-Tuan Phung
    Intellectual 830 points

    Have you found a sollution to this? Just a heads up: if you are developing for applications in Europe you have to operate within CENELEC B/C/D and not A. Prime is only able to operate within band A. 

  • 0 in reply to Christian Wilhelmsen
    TI__Genius 9975 points

    Hello Christian:

    I noticed you have been communicating with one of our applications engineers from the systems team regarding a software question and source code availability for our TMDSPLCKIT-V3. Is this question related to that conversation? Could you please elaborate on this forum question? I do not fully understand it.

    Best regards,

    Jose Duenas

  • 0 in reply to Jose Duenas
    Intellectual 830 points

    I am really sorry for the confusion, I see that I have accidentally posted this one here. This was meant to be at another thread. 

  • 0 in reply to Edward Mullins
    Prodigy 195 points

    Hi TI Employee

    Can I use TI's PLC solution for DC power line or cold wire (no AC power, no DC power)? How high of data rate could I use for the distance of 5km?

    Thank you for your help.

    Regards

    BinRua

  • 0 in reply to Bin Rua
    TI__Genius 9975 points

    Hello Bin Rua,

    TI's PLC solution can be used on AC power lines as well as DC power lines.

    The achievable data rate is heavily dependent on the channel conditions. For the 5km line you mentioned, do you know the characteristics of the noise present on the line? Also, do you know how much attenuation will such line introduce on the PLC signal?

    The paper “Developing robust power line communications (PLC) with G3” has a comparison on the maximum data rates available for different communication standards typically used in utility metering applications.

    http://www.ti.com/webemail/2012/email/MCU-Power-Line-Comm/slay021_pdf_redirect.shtml

    G3 and PRIME standards are supported on our TI Power Line Modem Developer's Kit (TMDSPLCKIT-V3): http://www.ti.com/tool/tmdsplckit-v3

    Please do not hesitate to contact me if you have any further questions.

    Best regards,

    Jose

  • 0 in reply to Jose Duenas
    Prodigy 100 points

    Hi Jose,
    I want to interface with AFE031 using 2 wires communication, in sboa130a.pdf file they give me a reference design . I want to khow that in the receiver , do we need to mount E_Rx_out to an ADC or connect it to GPIO directly? and one more question is if I use 2 wires communication, which is the maximum distance that they can work well?
    Regards,
    Toan  

  • 0 in reply to Toan dang
    TI__Genius 9975 points

    Hello Toan,

    E_Rx_out would be connected to an ADC input provided the ADC can sample the incoming signal fast enough to digitally construct the received signal. Note however that the two-wire blocks produce a binary amplitude shift keyed signal (BASK; also known as on-off keying or OOK) and an envelope detector may be a simpler solution. Please  note that the 2-wire blocks are not meant to transmit signals over a power line, rather, they are intended to transmit signals over an alternative set of two wires that are sometimes found in metering applications.

    The reach of the communication link depends on the noise conditions of the channel; unfortunately I do not have measured data for reach vs. bit error rate.

    Hope this helps.

    Best regards,

    Jose

  • 0 in reply to Jose Duenas
    Prodigy 100 points

    Hello Jose

    Thank you for replying me, It really help me . I just want to build a short connection within 100m with 2 wires block, Do you think 2-wire block can handle it? Actually I want to make it by SPI block but I just have more than a month to finish my school project and SPI seem like too complex with me , a newbie in electronic. Could you please give me some advises? Thanks!
    Regards,
    Toan