Allen-Bradley 1747-OCKTXD Open Controller Comm Interface

The Allen-Bradley 1747-OCKTXD Open Controller Communications Interface is a dual-channel module designed for the 1747 Open Controller chassis to enable serial network communications in SLC 500 environments, providing a dedicated bridge between the Open Controller and legacy fieldbus networks. Each of its two independent channels interfaces with AB’s data networks, enabling DH+ and DH-485 communication so Open Controller-based systems can exchange data with remote I/O and connected devices across those networks. The Open Controller System Overview identifies the 1747-OCKTXD specifically as a dual-channel interface within the Open Controller family, underscoring its role in delivering parallel communication paths in a single chassis. Used alongside other OCKTX-series interface modules, the 1747-OCKTXD helps establish a stable, multi-channel communication setup that allows older SLC 500 peripherals to operate within an Open Controller-driven control scheme.