trait
Hot standby redundancy: Support for hot standby redundancy allows users to set up and configure two RX3i cpus to perform the same function in a given application, improving the reliability and availability of the system.
Fault indication: Provide a fault indicator or alarm signal to detect and deal with power problems in time.
Hot Swap capability: May support hot swap, allowing power modules to be replaced while the system is running without shutting down the entire system (note: this may require product model confirmation).
Scalability: Support for local and remote extension racks, as well as Genius LAN and Ethernet LAN.

effect
Power support: Provides power support for the RX3i controller system to ensure stable operation of the system.
Industrial automation: control of production lines, machinery and processes.
Critical Application Control: A portable control engine that is programmed and configured to control different machines, processes and material handling systems in real time.

Parameters and specifications
Series: PACSystems RX3i series
Processor speed: 1GHz
Processor switching time: Up to one logical scan, 3.133 milliseconds
Memory: 64MB non-volatile flash and 64MB battery-supported random access memory (RAM)
Ports: Two separate serial ports (one RS-232 port and one RS-485 port)
Compatibility: Compatible with expansion modules (but not mainframe racks) in the Series 90-30 I/O product line
Development environment: Use Proficy Machine Edition for creating, running, and diagnosing operator interface, motion, and control applications