CS1 is our most extensive PLC family, with a maximum capacity of 5120 'local' digital I/Os. Up to seven expansion racks can be connected to a single CPU rack, bringing the maximum number of I/O units to 80. Any combination from more than 200 models of digital I/Os, analog I/Os, control units and communication units can be mounted in any order.
Visit the Omron Electronics Ltd website for more information on CS1G/H Rack Based PLC