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maziar
Joined: 06 Jun 2001
Posts: 253
Helped: 4
Location: Islamic republic of Iran
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 20 Aug 2002 13:32 Power line communication [PLC] for mcu |
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i need chip or sch or info for 220v and 20kv power line communicaion for mcu
Thx of any help
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miketong
Joined: 07 Jul 2002
Posts: 15
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| 20 Aug 2002 13:59 Power Liner communicate for MCU ? |
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The Chip is Modem for PLC !!
Chip Type: ST7536
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jinboqiu
Joined: 25 Nov 2001
Posts: 39
Helped: 2
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| 20 Aug 2002 14:05 |
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Do you have any special requirement in the power line communication,such as speed,reliablity,etc?I just had finished a project
in this field.I think I can give you some information.
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maziar
Joined: 06 Jun 2001
Posts: 253
Helped: 4
Location: Islamic republic of Iran
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| 09 Sep 2002 20:35 |
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| jinboqiu wrote: |
Do you have any special requirement in the power line communication,such as speed,reliablity,etc?I just had finished a project
in this field.I think I can give you some information. |
my speed not very important for me i think .5 or 1kBPS is good in real it not bad if some lower
reliablity: important for me
easy and low price : very important for me
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jinboqiu
Joined: 25 Nov 2001
Posts: 39
Helped: 2
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| 15 Sep 2002 16:49 |
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Hey,maziar,
About the PLCC,i just have following to say:
First, if not need to transmit data over long distance ,for example,only in a house or a small building.
I think you can use commercial IC such as, Intellon's ssc p200,p300 with p111, National Semiconductor's LM1893,
ST's ST7536 .All these ICs are easy to use with microcontroller,and cheap if you order in volume.
Second,if the reliablity is very important to you,you need adopt some special method such as error detection and correction use Haming code,CRC or more powerful ECC
method such as Reed-Solomon code,use some reliable data frame synchoronise methods to protect and extract you data from power line which often be a noisy environment.
Third,if you have to transmmit data over long distance and have very low load impedance of the power line such as in some industrial power cable,you may need to build your own
circuit,just like me.
In my project, I use a CPLD(@ltera EPM7032S) to do a CPFSK modulation ,use some MOSFETs to construct a high power class D amplifier,and use PLL chip to demodulate the received
signal,use Motorola's MC68HC908GP32 to encode and decode data with CRC16 ,synchorinse data frame and do all the other protocol.
You can read National Semiconductor's LM1893 datasheet,ST' ST7536 datasheet and the coressponing application note and visit Intellon's web page(www.intellon.com)
to get more information about PLCC.
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joebazoka
Joined: 17 May 2001
Posts: 108
Helped: 1
Location: Argentina
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| 20 Sep 2002 1:57 |
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| In my project I use ST7537 with a COP8 mcu at 2400 bauds. I use HDLC protocol with CRC16 checksum. See the application notes for ST7537. Be careful with switching power supply connected to main power. This produce noise that produce errors in communications.
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ntfreak
Joined: 22 Feb 2002
Posts: 190
Helped: 5
Location: UK
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| 23 Sep 2002 15:08 |
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Also have a look at the ST7538 as this is a much better device than the ST7536/37. It has a built in driver stage reducing component count.
I have done a board with this and a ST7 micro with good results (using FEC).
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kemal
Joined: 14 Jul 2004
Posts: 1
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| 14 Jul 2004 8:08 Re: Power line communication [PLC] for mcu |
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I have a good idea for making a project with using st7537 or 7538
But I'm not good at making board design. If someone could help me I will very glad
Thanks from now
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ntfreak
Joined: 22 Feb 2002
Posts: 190
Helped: 5
Location: UK
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| 16 Jul 2004 18:51 Re: Power line communication [PLC] for mcu |
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Have alook at ww.st.com where you will find referance designs using 7536,37,38 devices.
Regards
NTFreak
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penrico
Joined: 28 Aug 2001
Posts: 227
Helped: 8
Location: Argentina
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| 16 Jul 2004 21:47 Re: Power line communication [PLC] for mcu |
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check it may help you
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pico
Joined: 30 Sep 2001
Posts: 261
Helped: 6
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| 20 Jul 2004 20:09 Power line communication [PLC] for mcu |
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You can get some information here.
http://www.qbc.clic.net/~metricom/
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Rezamasih
Joined: 03 Jul 2007
Posts: 3
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| 11 May 2008 11:12 Re: Power line communication [PLC] for mcu |
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Dear Friends
I bought a PLC modem module. my module has two ICs. the part numbers has cleared by scraping. but its clear that one of chips is a PLC modem and another one is a Atmel microcontroller. based on my assumption the question is that what is the duty of microcontroller in the circuit?
the part# for the module is ATL90115-1 a product of Archnetco
http://www.archnetco.com/english/product/ATL90.htm
it has Tx1 Rx1 also Tx2 Rx2 I sent and communicate over Tx1 and Rx2
pins of two modules perfectly but I don't know what are Tx2 and Rx2 presented for?
can anyone suggest a method for sending ans receiving multimedia(Audio/Video)
over power?
there are Ethernet modems for this purpose but is there anything out of protocols?
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