Allen-Bradley 1785-L26B PLC-5 Processor | 16K Memory & 512 I/O By wayne No Comments on Allen-Bradley 1785-L26B PLC-5 Processor | 16K Memory & 512 I/O 3 Min Read Buy the Allen-Bradley 1785-L26B PLC-5/26 processor. It features 16K memory, 512 I/O capacity, and battery-backed SRAM for reliable industrial control.