IC695CPE305LT-ABAD PACSystems RX3i High-Speed Central Processing Unit, Extended Temperature Version

Description

IC695CPE305LT-ABAD PACSystems RX3i High-Speed Central Processing Unit, Extended Temperature Version

Core Product Overview

The IC695CPE305LT-ABAD is an extended-temperature variant of the GE/Emerson PACSystems RX3i CPE305 programmable controller CPU. Built around a 1.1 GHz processor, it executes real-time control logic, manages rack I/O over the RX3i universal backplane, and handles industrial network communications. The LT designation indicates wide-temperature environmental qualification for harsher plant conditions compared to the standard commercial CPE305. It integrates 10/100Mbps Ethernet, RS232 serial, and USB storage port, supports IEC 61131-3 programming languages, and uses an optional Energy Pack for battery-free memory retention during power loss. It is widely used as a spare for manufacturing, power, water, and oil & gas control racks; many revisions are legacy or end-of-life, supplied as surplus and fully bench-tested refurbished units.

Main Technical Specifications

• Part Number: IC695CPE305LT-ABAD
• Manufacturer: GE Fanuc / Emerson
• Family: PACSystems RX3i
• Device Type: RX3i CPU Controller, Extended Temperature (LT)
• Processor: 1.1 GHz
• User Memory: 5 MB RAM, 5 MB non-volatile Flash
• Embedded Interfaces: 1×10/100Mbps Ethernet RJ45; 1×RS232 isolated serial; 1×USB 2.0 host for RDSD storage
• Backplane: RX3i universal dual PCI/serial backplane
• Programming Languages: Ladder Diagram, Structured Text, Function Block Diagram, C
• Supported Protocols: Modbus TCP, Modbus RTU, SNP, Serial I/O, EGD
• Power: Powered from RX3i rack backplane
• Operating Temperature: -40°C ~ +70°C (LT extended range)
• Humidity: 5%–95% non-condensing
• Mounting: RX3i universal rack slot, plug-in backplane module
• LED Indicators: Run, Fault, OK, Ethernet activity
• Configuration Software: Proficy Machine Edition (PME)
• Certifications: CE, UL, cUL
• Status: Legacy industrial CPU, some revisions discontinued; stock available as surplus or professionally refurbished

IC695CPE305LT-ABAD

Same-Series Model Recommendations (8 Models)

• IC695CPE305LT-ABAD: Extended temperature 1.1GHz RX3i CPU (subject model)
• IC695CPE305-ABAJ: Standard commercial temperature CPE305, 1.1GHz
• IC695CPE302: Entry-level RX3i CPU, smaller memory footprint
• IC695CPE310: Higher-performance RX3i CPU, 10MB user memory, dual serial ports
• IC695CPE330: High-end RX3i CPU with 64MB memory and advanced security
• IC695CPU315: Mid-range RX3i CPU with dual serial ports
• IC695CPU320: Top-tier RX3i controller with large program memory
• IC695CPK330: CPE330 variant pre-fitted with Energy Pack

Professional Quality Control & Testing Standard Operating Procedures

All surplus and refurbished IC695CPE305LT-ABAD CPUs follow this inspection workflow:

1. Visual & Backplane Inspection: Examine PCB, edge connector, front panel LEDs, USB, Ethernet and serial ports for corrosion, bent pins, burn marks or component damage; verify part number and revision label.
2. Backplane Power Bench Test: Insert into compatible RX3i backplane, apply rack power, confirm stable internal rails and no immediate fault LED.
3. Boot & Firmware Verification: Confirm boot sequence completes, read firmware revision, check for hardware fault codes.
4. Communication Port Functional Test: Validate Ethernet link and PME programming connection; test RS232 serial and USB removable storage read/write.
5. Logic & Memory Test: Download test control project, execute logic scan, verify RAM and Flash integrity, program upload/download.
6. Backplane I/O Simulation: Communicate with RX3i I/O modules via backplane simulator to validate rack scanning and fault reporting.
7. Thermal Screening: Operate module at elevated temperature to reveal intermittent memory or connection faults.
8. Final Cleaning & Packaging: Clean edge contacts, reset to factory defaults, apply ESD packaging with test record.

New / Refurbished CPU Installation Guidelines

1. Pre-Installation Safety: Perform lockout-tagout; isolate rack control power to prevent unintended machine operation.
2. Rack & Backplane Check: Confirm the backplane is RX3i universal type, grounding is secure, and ventilation is adequate.
3. Mechanical Insertion: Align the CPU edge connector carefully with the backplane; insert smoothly without forcing, engage the front latch.
4. Network & Serial Wiring: Connect Ethernet programming/network cable and serial cable as required; segregate low-voltage signal cables from high-power wiring to reduce EMI.
5. Configuration: Use Proficy Machine Edition to download the application project, set IP address, network parameters and CPU fault logic.
6. Pre-Commissioning Functional Test: Power up rack offline; verify Run LED, Ethernet link, fault diagnostics and program execution without field loads.
7. System Commissioning: Connect field I/O, perform point-to-point signal checkout, test fault handling, and archive the final project file.

IC695CPE305LT-ABAD

Application Scenarios & Product Features

Typical Application Scenarios

• Factory automation, material handling and packaging machine control
• Water and wastewater treatment plant PLC control systems
• Power generation auxiliary equipment and BOP control
• Oil & gas skid control, compressor and pump automation
• Retrofit spare replacement for existing RX3i PACSystems racks
• Industrial processes requiring wide-temperature tolerance in unconditioned cabinets

Core Product Features

• 1.1 GHz high-speed processor for fast discrete and analog control scans
• Extended wide-temperature rating suitable for harsh industrial cabinet environments
• Onboard Ethernet, RS232 serial and USB removable storage for easy maintenance
• Supports full IEC 61131-3 programming plus C-language logic
• Optional Energy Pack enables battery-free memory retention on power loss
• Hot-swappable RX3i rack architecture for reduced maintenance downtime
• Built-in comprehensive diagnostics, fault LEDs and rack-level I/O status reporting
• Native compatibility with wide range of RX3i digital, analog and specialty I/O modules

Frequently Asked Questions (FAQ)

Q1: What does LT mean in IC695CPE305LT-ABAD? A1: LT stands for Low Temperature / Extended Temperature, indicating the unit is qualified for a wider operating temperature range than the standard commercial CPE305 model.

Q2: Can this CPU run the same projects as the regular IC695CPE305? A2: Yes. The logic, memory and instruction set match the standard CPE305; the difference is environmental qualification. Existing PME projects can be downloaded without modification.

A3: Many hardware revisions are legacy/end-of-life. Available stock is surplus used or professionally refurbished and bench tested.

Q4: What are common failure modes for this CPU? A4: Typical faults include edge connector pin corrosion, electrolytic capacitor ageing, Ethernet/USB port ESD damage, flash memory corruption after uncontrolled power loss, and RTC battery depletion.

Q5: Can this CPU be hot-swapped in a powered RX3i rack? A5: RX3i supports module hot swap, but removing the CPU will stop control execution and trigger system faults. Hot replacement should only be done under controlled downtime or bypass conditions.