Allen-Bradley 1747OC-EDDBA SLC 500 PLC Module

The Allen-Bradley 1747OC-EDDBA is a CPU module for Rockwell Automation’s SLC 500 modular PLC system. Identified by the 1747OC-EDDBA (also listed as 1747OCEDDBA), this processor slots into a 1747 SLC-500 chassis to run the control program and coordinate data exchange with attached I/O modules. As a member of the 1747 family, it provides central processing for ladder logic execution, manages scan cycles, and handles data movement within a compact, rack-mounted controller. In typical configurations, it works with 1747-series I/O modules and standard communication interfaces used by SLC 500 systems, enabling reliable automation of discrete processes, material handling, and packaging lines. The module is manufactured by Allen-Bradley (Rockwell Automation), ensuring compatibility with the broader SLC 500 ecosystem and with Rockwell software tools historically used for programming and diagnostics. When selecting this part, buyers should verify chassis compatibility, firmware revision, and the presence of any necessary cabling or adapters in their existing AB control infrastructure.