Hi,

Having a issue on a kantech system, the system is connected to the PC via a USB 485 module, about 20 meters to the first controller (kt100).

The site will not connect to the controllers, no rx or tx. I have checked the ports match etc but not joy.

I have changed over the usb485 for a new one.

Could it be possible that the pc I'm using is some how blocking this connection?

Thanks

can you take controller to known working door controller and connect directly , establish cable faults distance etc ? we have used the ip controllers you have to prog locally with laptop. then there was a setting you have to added it as then deleate/ reconcfig to get working !!