The Allen-Bradley 1784-KT Communication Module (part numbers 1784-KT and 1784-KT/B) is an ISA/EISA bus interface that enables personal computers, workstations, or terminals to communicate with Allen-Bradley processors and controllers. It supports direct connections or operation over Data Highway Plus (DH+) networks, providing PC-based access for programming, diagnostics, and data exchange with AB control systems. Used in legacy AB configurations, the 1784-KT family serves as a bridge between computing equipment and Allen-Bradley PLCs, helping integrate PC environments with industrial controllers.
