RMA Plus, an enhanced version of the company’s EZ-Zone RM remote-access module, has an integrated USB connection that simplifies the connection from a PC and does not require a converter. The upgraded remote-access module offers plug-and-play access to the company’s line of controllers and integrates into existing systems. It is supplied with a built-in Ethernet switch, eliminating the need to provide an additional switch for small systems. It also offers port mirroring for troubleshooting and protects from broadcast and multicast storms. The integrated USB connection ensures real-time communication from software packages, and the Modbus TCP and Modbus RTU capabilities allow users to connect to third-party and legacy devices. It is capable of datalogging, and users can log up to 16 GB with built-in memory or insert a 32 GB SD card for added capacity.