The modules in Integrated Architecture are referred to by their Rockwell Automation Catalog Numbers. Catalog Numbers are made up of four parts, as illustrated by the following diagram:
The preceding diagram breaks apart the Catalog Numbers for a ControlLogix digital input module with 16 channels and built-in diagnostics.
The bulletin number is a four-digit identifier for the Logix controller family. ControlLogix will begin with the 1756 bulletin number, the SoftLogix modules begin with the 1789 bulletin number, and CompactLogix will begin with the 1769 or 1768 bulletin numbers.
The module type is the second part of the ...