Olivia

also you could take a look at the SiteManager from secomea it is basically the same thing as the Ewon unit, just more graphical.

Secomea, as ewon, also have a product called SiteManager for monitoring and remote programming. I think it just allows you to use remote plc access and program the PLC as if you were locally there.

There is also an alternative to Ewon, called a SiteManager. Also, it's not too expensive for a remote plc access device. We use the SiteManager in our company, and we only have a few programmers. But it is a whole lot easier than to use VPN connections or even travel to the destination for programming.