I have established communication with a ControlLogix PLC running 20.19 firmware using Ignition’s Legacy AB driver. The Gateways shows the PLC as connected.
I can see the tag values in RSLinx.
I can browse the tags in Designer and drag them into the Tag Browser, but all the values are BAD.
The diagnostic page for one of the tags shows valid tag definition and tag group.
Any ideas why the values are not coming through?