Remoting parallel data over LAN

syndetic1 · Joined: 02 Jan 2007 Posts: 76

I have an application where I want to take 8 data bits into a microcontroller at one location and send them over a LAN to another location and present them as 8 relay outputs at a second location.

Can the Easy TCP/IP board do this?

Any examples of software that would help me along the way?

Thanks in Advance

Arera · Joined: 23 Sep 2007 Posts: 386 Location: Wuppertal, Germany

Hi,
yes, Easy TCP/IP can do that. But you will need some knowledge and experience in the world of bits and bytes to get it working. May I ask you how much experience you have? Your question about the "parallel" transmission of 8 bits seems a little "unexperienced" to me.
I can give you an example Proggi, but it´s of no use for you, when you don´t know the basics, I´m afraid.
I suggest you to start your project by building an 8-Bit remote control, using the serial transmission (UART). The next step will be to replace serial transmission by TCP/IP.

Develop your system step by step and ask a lot of detailed questions here in the forum!
Have fun!

syndetic1 · Joined: 02 Jan 2007 Posts: 76

Hi Arera,

I think I have the basics in hand. I can do this function over RS485. RS485, as you no doubt know is a 2 wire half duplex serial interface.

The advantage of doing it across the LAN is that most buildings have LAN everywhere whereas with RS485, I would have to run dedicated wiring.

I used the word parallel because I was going to read a port (8 bits) and send them across the LAN. Of course they get sent serially but they are read in in one go - ie in parallel.

Any help with the Easy TCP/IP would be appreciated as I have very limited experience with TCPIP. For a start, which protocol would Easy TCPIP use to send these messages?

Thanks

Arera · Joined: 23 Sep 2007 Posts: 386 Location: Wuppertal, Germany

I spend over an hour to almost write a book how to use TCP/IP.
When I submitted, I was forced to log in again (timeout?), and alll my text was gone Evil or Very Mad

What you need to buy: MCS 7010A whith addon: assembled an tested.
Easy TCP IP mainboard.

Don´care about the TCP/IP protocol, all you need to know is how to use the SOCKETS.

Once a connetion is established, you can sen and receive ASCII strings, thats easy!

Most important is to care about the status of the socket!

To see how that works try this progie (read all the dokumentation carefully!)