Sending and receiving data through internet

[ductuan.mta]

Hi everyone,

I have cRIO 9031 and some NI modules such as NI 9234, 9236, NI 9201,...

I want to send collected real-time data from this cRIO to other city for a monitoring task by the internet.

I only know one method using mqtt cloud.

Can I use UDP or TCP for this task??.

AND other solutions?

Any contribution is highly appropriated

Thank you!

[GerdW]

Hi ductuan,

as long as there is a direct connection possible (no blocking firewalls, etc.) you can use any kind of network communication…

[ductuan.mta]

Thank you

I have used TCP communication for transmitting collected data by the internet and I used external IP, the problem was timeout.

As I know that UDP communication is not believable for the quality of signal.

Could you give me a solution in more detail if I use UDP or TCP.

Thank you,

[GerdW]

Hi ductuan,

I have used TCP communication for transmitting collected data by the internet and I used external IP, the problem was timeout.

Most often you cannot directly communicate by TCP: your devices/computers use local IP addresses, but are connected to the WWW (world wide web) using a router which translates local addresses (LAN) to global addresses (WAN). So you cannot call a local IP address from a different subnet that your own…

I want to send collected real-time data from this cRIO to other city for a monitoring task by the internet.

I only know one method using mqtt cloud.

Can I use UDP or TCP for this task??.

Can you provide more information about your desired TCP/UDP communication?

Which IP addresses do you use?

MQTT also uses TCP under the hood, so yes, you can use TCP/UDP…

[ductuan.mta]

Dear GerdW,

I tried to use simple TCP project with Client.vi and Server.vi

I used global addresses (WAN) for 2 computers and these addresses can be found on https://ping.eu/

I specified IP adresss of localhost to client.vi and run both server.vi and Client.vi. This can help me to send and receiver signal

I need a program that can send data over time and I can receiver this signal whenever I want. Can I use UDP communication?

I have to set up this measurement system next month, so I really need your help

Thank you,

[herringbone]

If you are worried about timeout and basic UDP functionality, I would test a simple UDP LabVIEW program first

I would recommend trying out some of the LabVIEW help examples.

The "Simple UDP.lvproj" is pretty easy to set up and test. Should give you a good idea of UDP performance between your two PCs and should give you a better idea if thats the way you want to go for your cRIO communications

[bseguin]

To avoid any complication when communicating trough internet, timeout is one thing, the other is the routing and security.

To run different system like if they where local, use a VPN. You might cut the speed, but you have a huge gain in stability.

Benoit

[ductuan.mta]

Dear,

Thank you for your solution

I am testing this solution. I hope that it will be suitable for my measurement system.

Reagard,