GE PACSystems RX3i IC695CPE305LT – Extended-temperature Ethernet CPU for reliable plant-wide control

The IC695CPE305LT is a PACSystems RX3i CPU with on-board Ethernet, designed for mid-range to advanced control tasks where uptime and environmental resilience matter. The “LT” suffix indicates a conformal-coated, extended-temperature variant—handy when cabinets see wide thermal swings or occasional moisture. From my experience, this CPU hits a sweet spot: enough performance for multi-rack applications, deterministic scheduling on the RX3i backplane, and straightforward integration with HMI/SCADA over Ethernet.

Typical use cases include packaging lines, water/wastewater skids, material handling cells, and brownfield upgrades where you want modern networking but need to reuse existing RX3i I/O. You might notice that commissioning is fast if you already work with Proficy Machine Edition—logic downloads and online edits are usually smooth, and the learning curve for maintenance teams stays low.

Order Placement Process & Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock; no more than one month at the latest
• Payment: 50% advance payment, full payment before delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• Extended-temperature, conformal-coated (LT) – Built for harsher cabinets; typically runs stable where standard variants struggle.
• Integrated 10/100 Ethernet – For programming, HMI/SCADA connectivity, and controller-to-controller comms without extra modules.
• Deterministic PAC backplane performance – Solid scan times with RX3i I/O; scheduling stays predictable in most cases.
• Flexible programming – Ladder, ST, FBD, and SFC in Proficy Machine Edition, which simplifies reuse of existing code libraries.
• Scalable architecture – Works with local RX3i I/O racks and networked devices; easy to expand as lines grow.
• Industrial protocol support – SRTP/EGD for GE ecosystems; Modbus/TCP is typically available depending on firmware loadout.
• Serviceability first – Hot-swappable I/O on the RX3i platform and quick fault diagnostics help reduce downtime.

Technical Specifications

Related and Supporting Products

• IC695CPE330 – Newer high-performance RX3i CPU with faster processing and enhanced security; a common upgrade path when cycle times tighten.
• IC695CPE400 / IC695CPE405 – High-end RX3i CPUs with integrated PROFINET I/O Controller and advanced networking; suitable when you need built-in PROFINET and OPC UA features.
• IC695CHS012 / IC695CHS016 – RX3i racks (12/16-slot) for system expansion.
• IC695PSA040 / IC695PSA140 – RX3i power supplies; choose based on module count and load budget.
• IC695PNC001 – RX3i PROFINET Controller module for deterministic Ethernet I/O networks.
• IC695ETM001 – Additional Ethernet interface module if separate network segmentation is preferred.
• RX3i discrete/analog I/O modules – Wide selection for digital, analog, HSC, and specialty signals depending on the machine’s needs.

Installation & Maintenance

• Cabinet & environment – Use a sealed, grounded enclosure; allow airflow around the rack. The LT variant handles wider temps, but clean, dry air and stable power still improve longevity.
• Wiring & grounding – Bond rack ground to a low-impedance earth. Use shielded twisted pairs for noisy signals and segregate power from control wiring where practical.
• Networking – Industrial-rated switches with VLANs or physical segmentation help keep HMI/SCADA traffic from impacting controller comms.
• Firmware – Keep the CPU firmware aligned with Proficy versions. I typically stage upgrades during scheduled downtime and verify protocol settings afterward.
• Battery & retention – If you rely on battery-backed memory, replace the retention battery on schedule and confirm backup/restore procedures.
• Routine checks – Inspect connectors, backplane seating, and event logs quarterly. A short preventive checklist usually avoids long diagnostics later.
• Safety – De-energize before module insertion or removal unless the procedure explicitly allows hot-swap for the module type; follow lockout/tagout policies.

Quality & Certifications

• CE compliant for EMC and Low Voltage directives
• UL and cUL listed for industrial control equipment
• RoHS compliant construction
• Manufacturer warranty support; 365-day warranty provided with supply

If you’re replacing an older RX3i CPU or building a new cell, the IC695CPE305LT is a dependable choice—especially where temperature extremes and cabinet humidity have been pain points. I’m happy to help validate firmware compatibility and sizing of racks and power supplies against your I/O count and scan-time target.