The Allen-Bradley 1769-L24ER-QB1B is a CompactLogix packaged controller from the 5370 CompactLogix family. This controlled has embedded 768Kbytes memory, Two (2) Ethernet communication ports, 1 RS2322 and 1 USB port. It has Sixteen (16) Sinking / Sourcing 24V DC Digital Inputs and Sixteen (16) Sinking 24V DC Digital Output. It supports up to Four (4) Compact I/O modules.
1769-L16ERBB1B Allen-Bradley compactlogix 5370 l1 controller, 2 ethernet/ip ports, 384kb memory, 16 dc in, 16 dc out, up to 6 1734 i/o expansion modules.