IC695CPU320-CF GE PACSystems RX3i CPU Module

Description

Product Model: IC695CPU320-CF
Product Brand: GE (GE Fanuc / Emerson)
Product Series: PACSystems RX3i

Product Features (key strengths):

• 1 GHz Celeron-M core with retained memory for program and data (approx. 64 MB).
• Two built-in serial ports and high throughput for mixed logic, motion, and communication tasks.
• Designed for redundant or non-redundant installations with fault tolerance in industrial control applications.
• Broad support for I/O, network, and expansion modules within RX3i ecosystem, with real-time determinism.

Installation & Maintenance Insights

Installing IC695CPU320-CF requires both mechanical care and control system awareness. First, always power down the rack or ensure the backplane is de-energized before inserting the CPU. Align the CPU’s connector carefully with the backplane; a slight misalignment can bend pins, so inspect alignment visually before pressing in.

Ensure adequate airflow around the CPU and adjacent modules; though the CPU itself may not dissipate massive heat, dense module racks can create hot spots. Maintain at least a few millimeters of clearance above and below for ventilation. Use filtered air or dust suppression in harsh environments.

After installation, verify that the CPU sees proper bus voltage (within tolerance). Watch for LED status indicators that reflect “RUN,” “FAULT,” or “RESERVE” (in redundant configurations). In the first run, monitor for diagnostic faults in I/O and communication paths, because errant wiring or miswired modules often manifest early.

For maintenance, schedule periodic firmware reviews — GE sometimes issues updates or patches. Also inspect module connectors yearly: mechanical stress, corrosion, or vibration can loosen mating parts. Clean with dry, non-conductive tools (e.g. compressed air). Use the system’s diagnostic logs to look for repeated recoveries, watchdog timeouts, or serial port errors as early warning signs. Keep a known working spare IC695CPU320-CF on hand with the same firmware revision for rapid replacement during unplanned outages.

Product Role & System Fit

In the architecture of a PACSystems RX3i automation system, IC695CPU320-CF functions as the central brain—the CPU module responsible for executing user logic, coordinating I/O, and handling communications. It bridges field equipment and higher-level systems (SCADA, DCS, MES), running logic cycles and serving deterministic I/O scanning.

Because it is a member of the RX3i family, IC695CPU320-CF is compatible with the RX3i backplane, I/O modules, and communication cards. Its internal architecture supports handling mixed workloads: analog/digital I/O, motion control, math/logic, and network protocols. It’s not a stand-alone device; it must reside in a valid rack slot within an RX3i chassis. Many systems use this CPU module in both redundant and non-redundant slots, making it flexible to meet uptime targets.

The “-CF” suffix often denotes inclusion of compact flash (or nonvolatile storage) or indicates a specific revision. In many installations, the CPU’s memory (about 64 MB) is retained across power cycles to preserve the application, variables, and configuration. That retention is vital — it ensures that after a loss of input power, the controller resumes with the correct state.

As a control hub, IC695CPU320-CF often interfaces with network modules (Ethernet, Modbus, serial) and I/O modules (digital, analog, specialty). In systems with redundancy requirements, a pair of IC695CPU320-CF units may operate in master/backup mode, switching over automatically on fault detection. In non-redundant configurations, it runs solo but still must manage watchdogs, diagnostics, and fail-safe strategies.

In modern industrial environments—such as process plants, oil & gas, power generation, water treatment, or heavy machinery—automation architects select IC695CPU320-CF when deterministic control, modular space, and compatibility with the RX3i ecosystem matter. Its balance of performance and integration capability makes it a go-to CPU in many retrofit or new greenfield installations.

Related Models

Here are several related GE / Fanuc RX3i modules, with one-line differentiation:

• IC695CPU320 – The base CPU version (non-CF), similar performance but perhaps different flash or revision detail.
• IC695CPU320C – A variant with a different board revision or certificate level.
• IC695CPE305 – A lower-end compact CPU for smaller installations in the same RX3i family.
• IC695CPU310 – Predecessor CPU with lower clock or memory capacity.
• IC695CPU330 – Higher-performance CPU variant for more demanding logic or communication loads.
• IC695CHS030 – A communication or bus module rather than a CPU, used to interface with specific networks.
• IC695CPE400 – A CPU with integrated Ethernet ports or additional features beyond the 320 family.