Allen Bradley PLC model called "1786-BNCP." The Allen Bradley 1786-BNCP is actually a Communication Protocol Converter module, designed to provide communication between various industrial networks and the ControlLogix platform. 

The 1786-BNCP module acts as a bridge between different protocols, allowing data exchange between devices using different communication standards. It supports protocols like DeviceNet, ControlNet, Ethernet/IP, and Serial. This module is commonly used in industrial automation and control systems to enable communication between different devices within a network.