Product Core Brief

• Brand: GE Fanuc / Emerson Automation
• Model: IC695CPU320-HS
• Series: PACSystems RX3i
• Core Function: Single-slot high-performance standalone CPU for RX3i universal backplane. HS suffix = factory high-speed tuned variant of base IC695CPU320, optimized for fast logic scan, high-speed backplane I/O throughput and heavy communications load. Capable of participating in RX3i hot standby redundant architecture when paired with IC695RMX128 fiber reflective memory modules.
• Type: Single-slot rack-mounted main controller
• Condition: New Original (New Surplus)
• Status: ⚠️ Discontinued OEM production; limited surplus inventory
• Key Spec Highlights: 1 GHz Intel Celeron M, 64 MB battery-backed RAM + 64 MB Flash memory, dual onboard serial ports, standard operating temperature 0°C ~ +60°C, single-slot form factor, supports IEC programming languages plus ANSI C blocks, optimized for high-speed I/O and short logic cycle applications.

Key Technical Specifications

• Processor: Intel Celeron M @ 1 GHz (HS variant with factory timing optimization for faster backplane access)
• Memory · 64 MB battery-backed SRAM (requires IC695ACC302 lithium smart battery) · 64 MB non-volatile Flash memory
• I/O Reference Capacity · Discrete: 32K %I / 32K %Q bits · Analog: 32K %AI / 32K %AQ words
• Supported Programming Languages: Ladder Diagram LD, Structured Text ST, FBD, SFC, ANSI C program blocks
• Built-in Serial Interfaces · COM1: RS‑232 D-Sub (programming, SNP slave) · COM2: Isolated RS‑485 (Modbus RTU Master / Slave, Serial I/O)
• Redundancy Support: Hot Standby capable via IC695RMX128 fiber reflective memory (dual independent racks)
• Ethernet: Requires external IC695ETM001 / ETM001ER module for SRTP, Modbus TCP, EGD communications
• Backplane Power Consumption · 3.3 VDC: 1.75 A · 5 VDC: 1.20 A
• Operating Temperature: 0 °C ~ +60 °C
• Front Panel LEDs: CPU OK, RUN, Outputs Enabled, I/O Force, Battery Fault, System Fault, COM1 / COM2 Activity
• Backplane Architecture: Dual bus (PCI high-speed bus + legacy Series 90‑30 serial I/O bus)
• Hot Swap: Not supported; full rack power isolation required before CPU replacement
• Configuration Software: Proficy Machine Edition (PME)
• Certifications: UL, CE, Class I Division 2 hazardous location qualified

Product Introduction

High-speed machinery, packaging lines and fast loop process control demand minimal logic scan latency. is the factory high-speed tuned variant of the popular standalone RX3i CPU. It occupies one RX3i rack slot, conserving chassis space for I/O and communications modules. Optimized backplane access timing delivers improved I/O refresh performance for high-density fast response applications. It supports legacy Series 90‑30 I/O migration and can be configured for hot standby redundancy with IC695RMX128 fiber sync hardware. Dual serial ports connect directly to Modbus instruments, HMIs and legacy serial field devices; all TCP/IP Ethernet communications rely on external IC695ETM001 series modules. Single-slot form factor supports direct drop-in spare replacement during planned maintenance outages.

Key Selling Points & Differentiators

1. GE features factory high-speed tuning for shorter logic scans and faster backplane I/O refresh compared tIC695CPU320, ideal for high-speed machine automation.
2. Single-slot design saves rack space versus two-slot dedicated redundant IC695CRU320 CPU.
3. Every unit undergoes full bench validation on an RX3i test chassis; program download, serial protocol testing, redundancy initialization simulation and LED diagnostics verified prior to shipment. Signed test documentation available on formal request. Warranty runs 12 months post delivery.
4. Native ANSI C language support enables complex mathematical and algorithmic control beyond standard IEC ladder logic.
5. Not compatible with RX7i, Series 90‑70 or Series 90‑30 main racks; designed exclusively for RX3i universal backplane architecture.
6. Backward compatible with Series 90‑30 I/O modules, lowering capital cost for legacy system retrofit projects.

Quality Transparency SOP

• Incoming Verification: Serial traceability validation, anti-counterfeit visual inspection, D-Sub serial port and battery socket hardware cross-check.
• Live Bench Test: Dedicated RX3i test rack, power-on self-test, full program download validation, Modbus serial master/slave test, continuous 24-hour thermal soak cycling.
• Electrical Tests: 500 V megger insulation resistance testing, backplane power rail stability verification.
• Hardware Verification: Confirm LED array and serial communication circuits operate per datasheet; no unauthorized component rework performed.
• Final QC & Packaging: Anti-static shielding, shock-dampened transit carton, signed QC Pass label. Test images and logs available on request. No zero-failure performance guarantee.

Technical Risk Avoidance Section

Variant Confusion Risk Risk: Mixing HS / standard / HU suffix CPUs in redundant pairs. Emerson recommends identical suffix part numbers for primary/standby CPU pair. Prevention: Document suffix type in project bill of materials; avoid arbitrary cross-substitution without offline testing. Field note: Multiple packaging machine redundant systems experienced inconsistent scan timing aftend .

CPU320-HS vs CRU320 Architecture Confusion Risk Risk: Attempting single-slot CPU320-HS as direct replacement for two-slot IC695CRU320 redundant CPU without rack layout review. Prevention: IC695CRU320 is dedicated two-slot redundant CPU; CPU320-HS is single-slot standalone CPU. Redundancy architecture must be revalidated if changing model types.

Backup Battery Expiry Risk Risk: Aging IC695ACC302 lithium battery loses RAM and RTC data retention after extended power outages. Schedule battery replacement concurrent with CPU exchange.

ESD Damage Risk Risk: Unprotected handling damages memory and communication circuits without immediate visible fault indicators. Prevention: Use grounded wrist straps; keep module sealed inside anti-static packaging until rack insertion.

Critical Summary: Confirm control scan speed requirements, cabinet operating temperature and rack slot layout before procurement. This is a single-slot standalone high-speed CPU, cannot be directly substituted with two-slot IC695CRU320 without rack layout and redundancy scheme redesign. Operates exclusively on RX3i universal backplanes.