Currently have to use kepware's driver for Beckhoff PLC, and would be great to have a direct connection using a driver in Ignition
I agree, it would be great to have direct ADS connectivity from Ignition to Beckhoff PLC's. No OPC software needed on the PLC side.
It is possible to install the Beckhoff OPC UA Server on the Ignition Gateway (or another PC) and communicate with multiple Beckhoff PLC's from there over ethernetand there native ADS protocol. This then only requires one OPC UA Licence to be purchased for a site.
A native driver would be handy. A present alternative is to use Beckhoff's TF6100 OPC-UA supplement/function server (there is a licensing fee as well as disk space and processing load cost for this) on the Beckhoff PLC and then connect Ignition to it as an OPC-UA client.