rs 232 to adsl

Soon,

I see you are not getting much information on your request. I would suggest you try to provide a little more detail of exactly what you are trying to do. From what I've read, it looks like what you need to do is look into a "remote desktop" setup. This would allow you to view and control the remote computer from any other computer that has internet access, then you would be able to control the RS-232 comm port on your remote computer from any other computer with an internet connection. Here in the US where I am, there's a company called "go to my pc" that allows people to connect remotely between two computers (for a monthly fee), perhaps there is something similar where you are?

If you need a better answer, you are going to need to provide more detail of what you are trying to do.

Tom

Hi Tom,

i have a controller locate on the road side. The controller have a rs 232 com port.

Now i need to upload the data from the controller to my pc in my office throught this rs 232 com port,how should i link up.

Soon,

Do you have an internet connected computer available at your remote location? The easiest way to do this is to have a computer at the remote location, running software to access the controller, then, using "Remote Desktop" or similar application, you can connect to the remote computer and access it from any other internet-connected computer.

If you are trying to do this without a an internet connected host computer at the remote site, I'm sure it can be done, but it's going to be much more difficult and involved, and it will take someone with more network knowledge than I have to assist you. Good luck.

Tom

hi tom,

I do no have any internet connected computer in my remote location.

But i have a adsl telco line at the remote location to my desktop. so with the rs 232 com port will possible to link up with my desktop.

Thanks.

Sorry Soon, I won't be much help to you on this one, I don't have that kind of networking experience. Good luck with your project.

Tom

Overview:
Connect to the controller through a telephone line, telephone modem and appropriate software.

Step 1
You need software on your PC that can communicate with the controller. What software is available from the controller's manufacturer for getting data from their controller? Does this software provide the information you require?

Some controller software is suitable only for configuration of the controller, not for data reporting.

If the manufacturer does not have the software that does the data reporting you need, who does? Citect? Wonderware? Intellution?

Does the software support connection via modem? If not, will it function in the manner necessary to connect to the controller?

Step 2
Inquire as to whether the software publisher/manufacturer recommends a telephone modem that has tested compatible for the software. If there's a tech note or applications note for modem communication over phone lines, follow the recommendations for a modem.

Step 3
Establish that a phone line is available for connection through a modem to your controller. What is its telephone number? If you dial the number now, what happens? (I've been told phone lines exist when they don't) If a person/fax answers, how will the modem connect to the controller?

While you're at it, establish that your PC can actually get an outside line, dial a number and that an analog modem will work over the phone line available. This is not a given in the world of digital compression and VOIP company phone systems, like it was in the POTS analog phone era.

Step 4
Acquire an industrial grade phone modem that meets the environmental requirements (temperature) and the telephone electrical requirements along with whatever accessory items like power supply and surge arrestor are required. Will it fit in the controller's enclosure?

Step 5
Install the modem. Connect the modem's RS-232 port to the controller, plug in the phone line. Dial the modem from your PC software and see what happens. Call the modem support guy when the modem doesn't answer. Consider that the support from the modem supplier is critical. Skimp on that and you are your own modem support team.

Step 6
Report back here with your experiences so that others can learn from your mistakes.

If this is all Greek to you, hire a systems integrator.

Hi friends,

i m connecting my controller to the pc throught a adsl telco line with a adsl modem.

so i don't need to dial a number.

so to check with u ,is there any modem in the market convert rs 232 to adsl .

thanks.

hi Carl E,

i have set up my controller to comminicate with my pc with the help of rs232 to adsl convertor . but now i need to put this pc at my office which is distance away.

what are the detail i need to let my telco provider know in order to link up this by telco line.

Thanks.

chew