Webpage sending Telegram

[redkyna]

I hope i'm not asking stupid questions. i need to design a web interface for a Substation Integoration & Monitoring System (SIMS), is the web interface able to send and receive telegram out to the ethernet port?

Will appreciate any advices and comments.

[Webforumz Staff]

I'm not 100% sure what telegram is, but it sounds like it's not actually based on tcp/ip or anything similiar? You'll have to point me in the right direction on that one!

Normal http pages are transferred over port 80. In order to use the ethernet port for anything else, you'll have to use some sort of application. Flash can't do it, as it doesn't have access to hardware like that. Java *might* be able to do it, but I'm not sure. Last up is an activex control, which you would have to write yourself (or get a team to write). As far as I know, an active X control is written in C/C++, so it can do pretty much anything, but it'll be difficult and expensive to write.

I'm afraid that the web was never intended for this sort of use, and so you won't find any technology that'll do this easily.

I expect the easiest way would be to use a dedicated web server and actually call applications (dlls, exes, shell scripts, whatever) to do the work for you and output their progress as HTML.

Does anyone else have any idea of how this sort of thing is usually done?

[Rob]

ASPsock could do this, as could Winsock.

[redkyna]

Thanks guys.

Sirkent, do u mean a dedicated web server embedded in the SIMS? Can you explain more on that part of calling applications?

Rob, ASPsock and Winsock are able to do the telegram part or calling applications?

So now, I shall narrow my scope to Winsock, ASPsock and Active X? Wht kind of skills required in these?

Million thanks.

[Rob]

redkyna,

We still do not know what you mean when you say 'telegram', so we are just guessing what you mean.

Can you please let us know exactly what you mean, or are trying to do and we'll be able to help you better.

My skills extend to ActiveX, ASPSock and WinSock, so I should be able to help.

[redkyna]

We want to develop a web interface for a Substation Interogation Monitoring System (SIMS), which is a small device running on an Intel Processor. Its function is to control the settings of relays at power stations.


The web should have a database storing some parameters of each relays, the parameters will be used to establish a connection between the web and the relay through the SIMS. The SIMS would want to accept the parameters in the format of a telegram in order to make that connection.

Back to my question, I need to find out if by any web technology, some data in a telegram format can be sent out through the ethernet port? and also, to accept some kind of acknowledgement from the ethernet port in a telegram format?

Thank you guys for ur time.

[Rob]

Firstly, disregard 'ethernet port'. Let's assume your machines are connected to the internet, and so is SIMS.

You need to be passing data to SIMS over TCP and receiving an ACK back over TCP letting you know all was clear.

TCP would definitly be the best protocol to use because you have many tools at your disposal already to send / receive TCP info.

I would certainly recommend that you look into WinSock or another TCP component. Obviously you'll need to have some small application running on SIMS to listen, carry out tasks and send back the ACK's.

Hope I've given you some food for thought... let me know if you need any assistance.

[redkyna]

Yes, we have found a software that creat a virtual TCP link between SIMS and the relays. So the data will be through TCP.

I have start looking at the sites about winsock and it says it's a API that allow windows program to send data over any network transport protocol. My experience in web is only limited to an online database using ASP and ACCESS, will this still be useful since we will also have a database in this case...? I mean the ASP, ACCESS and winsock, will they work together?

There will be someone else looking after the the application on SIMS, we were discussing on the data format between the web interface and SIMS and that's where he raised the telegram issue.

What do you think?

Thanks again.