The IC695CRU320 is a PACSystems RX3i Redundancy CPU that is manufactured by GE Fanuc Emerson. Specifications for this hardware include a program storage with up to 64 Megabytes of battery-backed RAM and 64 Megabytes of non-volatile flash user memory. The IC695CRU320 has power requirements of 1.0 Amperes nominal for +3.3 Volts DC and 1.2 Amperes nominal for +5 Volts DC. Operating temperature is between 0 and 60 degrees Celsius. This hardware supports floating point and has a time of day clock accuracy with a maximum drift of 2 seconds per day. Embedded communications include RS-232 and RS-485. It supports Modbus RTU Slave, SNP, and Serial I/O serial protocols. The IC695CRU320 also supports up to 512 program blocks, each block having a maximum size of 128 Kilobytes. The hardware has a flash memory endurance rating of 100,000 write/erase cycles (minimum). The maximum amount of data in the transfer list is up to 2 Megabytes and the hardware supports up to two IC695RMX128/228 synchronization links.

Additional features of the IC695CRU320 include support of programming languages like Ladder Diagram, Structured Text, C, and Function Block Diagram. This hardware also supports auto-located Symbolic Variables that can utilize any amount of memory available to the user. The IC695CRU320 supports most Series 90-30 modules and expansion racks, and the CPU firmware may be upgraded via the backplane. The IC695CRU320 has two serial ports: one RS-232 serial port and one RS-485 serial port. The enclosure that this CPU is housed in is equivalent to a NEMA/UL Type 1 enclosure or an IEC60529 IP20 rating that provides a minimum pollution degree of 2. This enclosure also provides as a safeguard against objects as small as 12 millimeters.

The GE Fanuc IC695CRU320 redundancy CPU comes with two serial communication ports on this module. Both of the modules comply with RS-232 and RS-485 communication standards. This redundancy processor is suitable for either hot-standby or redundant configuration. There are two controller racks on this module. Both of these racks possess similar configuration properties. The primary rack has active status, and the secondary rack is for standby. As soon as the primary rack shuts down due to any technical error, the secondary rack will be activated for executing controller duty. In such a scenario, the failed rack shifts to the secondary rack. The GE Fanuc/Emerson Automation IC695CRU320 redundancy processor comes with support for manual switchover features. For executing the controller switchover, a maximum of one logic scan is required. This redundancy processor has a minimum switchover time of 3.133 milliseconds. The module is able to transfer data at a rate of two megabytes per second. The built-in Intel Celeron M processor comes with a processing speed of 1 GHz. This redundancy processor is ideal for use in complex and large industrial applications. It can successfully save up to 512 program blocks at the same time. The size of each of the blocks can be 128 kilobytes. This module comes with an RX3i backplane preinstalled with it. This CPU provides error checking and correction. However, this results in overall slower performance by the system, most notably during the processor start-up, due to the extra eight bits that the error checking function utilizes. 

The GE Fanuc IC695CRU320 comes with support for 64 megabytes of RAM which comes with battery backup. The user memory on this module is 64 megabytes (non-volatile flash memory). It comes with two (2) serial communication ports on this module. Both the modules comply with RS-485 and RS-232 communication standards. PAC is short for programmable automation controllers. It is suitable for either redundant configuration, or hot-standby. There are two (2) controller racks on this module. Both of them come with similar configuration properties. The primary rack has an active status, and the secondary rack is for stand-by. As soon as the primary rack shuts down due to any technical error, the secondary rack will be activated for executing controller duty. In such a scenario, the failed rack shifts to the secondary rack. 

The GE Fanuc / Emerson Automation IC695CRU320 comes with support for manual switchover features. For implementing the Controller Switchover maneuver, a maximum of one (1) logic scan is required. On the other hand, a minimum of 3.133 milliseconds is required for the switchover. It is equipped of transferring data at a rate of 2 megabytes per second. The built-in Intel Celeron M Processor comes with a processing speed of 1 gigahertz. It also features 64 megabytes of user memory. It is primarily used for complex, and large factory applications. It can successfully save up to 512 program blocks at the same time. The block size on this module is 128 kilobytes. For installation, users require an RX3i backplane.