Technical data

56 Rockwell Automation Publication 1769-TD005I-EN-P - August 2014
CompactLogix Controllers Specifications
Controller Memory Use
These equations provide an estimate of the memory that is needed for a controller. These numbers are rough estimates.
Reserve 20…30% of the controller memory for future expansion.
Controller tasks _____ * 4000 = _____ bytes (minimum 1 task)
Digital I/O points _____ * 400 = _____ bytes
Analog I/O points _____ * 2600 = _____ bytes
DeviceNet modules
(1)
(1) The first DeviceNet module is 7400 bytes. Additional DeviceNet modules are 5800 bytes each.
_____ * 7400 = _____ bytes
Other communication modules
(2)
(2) Count all the communication modules in the system, not just those in the local chassis. This includes device connection modules, adapter modules, and ports
on PanelView™ terminals.
_____ * 2000 = _____ bytes
Motion axes _____ * 8000 = _____ bytes
FactoryTalk alarm instruction _____ * 1000 = _____ bytes (per alarm)
FactoryTalk subscriber _____ * 10000 = _____ bytes