How can I duplicate an HMI interface onto a monitor/tv screen?
Posted on 2014-10-31
I'be been assigned a project at work where I have to receive, process and display information from several sensors in real time. The way I did it was using a PLC and a HMI.
Now my boss thinks that 10.1" from the HMI doesn't look "cool enough" so he wants to duplicate what he sees in the HMI screen onto a 23" or bigger TV through a video signal or HDMI cable. The HMI has an Ethernet connection. The way this normally would be done with the brand of PLC and HMI we are using is to connect the HMI to a computer using the Ethernet port and install a Windows based software they provide for free to mirror the HMI into the PC screen.
My problem with this is that I can't put a computer (not even a laptop) near this system.
The first solution that came to my mind was to use a Andruino board (or any of it's competitors) as a "bridge" so it would get the data from the Ethernet connection and proyect it using a VGA or HMI port. The problem is that I couldn't find any system that supports Windows OS. This would be a great solution because a) it's cheap and b) it would be located inside the stainless steel box with the HMI so no one would notice anything odd.
Does anyone knows how can I do this? Again, my main problem is that I don't know how else to get the "data" out from the HMI other than using the Ethernet port and for that, I need a Windows based system where I can install the manufacturer software to mirror the HMI.
Basically, if no other solution is found, how can I make the smallest Windows based computer in the world? It needs to run 24/7.
Thanks in advance!