Sigma S7 EtherNet/IP functions are licenced for use in a single compatible Siemens S7-1200 CPU and the licence is not transferrable to another CPU.
ControlLogix PLC Peer-to-Peer communication with Siemens S7-1200 PLC.
Sigma S7 1200 Ethernet/IP Driver Licence - Peer-to-Peer
Sigma provides a totally integrated solution to easily allow a Siemens S7 PLC to communicate to a Rockwell ControlLogix PLC via EtherNet/IP CIP Connected Class 3 Explicit Messaging utilising the PLC systems existing Ethernet modules. No additional hardware is required and no additional communication programming is required in the ControlLogix PLC. Request or write ControlLogix PLC global tags directly from the S7 PLC program.