PLC Controllers

Rockwell
Micrologix, SLC, FlexLogix, CompactLogix and ControlLogix series with Ethernet IP, Wireless Ethernet and Devicenet interface
Virtually all servo drives
Ultra 3000 (Discrete IO, Devicenet)
Kinetic 6000 Motion Control (Sercos /Ethernet IP)

Siemens
Virtually all Siemens Controllers
S7-200, S7-300 and S7-400 series of controllers with Profibus-DP, Ethernet and Profinet interfaces.
All Servo drives
Profibus-DP
Profinet
Stand-alone

Mitsubishi
Q series of systems with CC-link
Mitsubishi Servo drives

Beckhoff
PC, BC, CX series controllers with Ethercat interface