Allen-Bradley 1785-L60B PLC-5 Processor Module

Allen-Bradley 1785-L60B PLC-5/60 Processor Module is a mid- to large-capacity PLC-5 controller that houses 64K words of SRAM and serves as the central processing unit for PLC-5 installations. It runs from a 5 VDC supply and typically draws about 3.3 A, delivering reliable performance in industrial environments. The module includes four DH-compatible ports for Data Highway-style networking, plus a Remote I/O (RIO) interface for expanding I/O racks and an RS-232 serial port for programming and diagnostics. As a PLC-5/60 processor, it integrates computation, memory, and network interfaces in a single plug-in module designed for 19-inch racks. This model is commonly used in legacy automation projects where PLC-5 hardware remains in service, offering compatibility with classic Rockwell Automation software and PLC-5-compatible I/O modules on DH+/RIO networks.