The Rockwell 1756-L62 processor module from the ControLogix family of products by Allen-Bradley/Rockwell Automation is a compact and cost-effective device that is mainly used for system control with communication devices and powerful I/O. The users will save a significant amount of money and they can take advantage of the drive’s modularity to build and modify it according to their needs. The 1756-L62 processor module has 4 MB of fixed memory and 4 MB of user memory. Also, this module has 478 KB of I/O memory and an optional nonvolatile memory backup storage for backup through a Compact Flash card.