GE IC695CPU320 PACSystems RX3i High‑Performance CPU Controller,

Description

Hardware & Electrical Specifications

‑ Model: IC695CPU320 ‑ Part Number: IC695CPU320 ‑ Module Type: RX3i High‑Performance CPU Controller, occupies 2 consecutive slots on universal backplane ‑ Mounting: Main‑rack universal backplane IC695CHS series only; cannot be installed on expansion backplane ‑ Backplane power consumption:  • +3.3 VDC: 1000 mA nominal  • +5 VDC: 1200 mA nominal ‑ Processor: 1 GHz Intel Celeron‑M ‑ User memory: 64 MB battery‑backed SRAM + 64 MB non‑volatile Flash memory ‑ Logic execution speed: 0.047 ms / 1000 Boolean instructions typical ‑ I/O capacity:  • Discrete %I / %Q: 32 K bits  • Analog %AI / %AQ: 32 K words each ‑ Program blocks: Max 512 blocks; each block maximum size 128 KB ‑ On‑board communication interfaces:  • COM1: RS‑232 (9‑pin D‑sub), SNP‑Slave, Modbus‑RTU Slave  • COM2: RS‑485 half‑duplex (15‑pin D‑sub), Modbus‑RTU Master/Slave, SNP‑Slave ‑ Ethernet: No onboard port; requires separate IC695ETM001 Ethernet module ‑ RTC real‑time clock: Max drift 2 seconds per day, lithium battery backup, typical service life 5 years ‑ Expansion capacity: Maximum 8 local expansion racks ‑ Required battery accessory: IC695ACC302 smart lithium battery module ‑ Diagnostics: CPU hardware self‑test, backplane bus fault, I/O fault monitoring, memory checksum and ECC error detection ‑ PCB treatment: Conformal coated for dust, moisture and corrosion resistance ‑ Compatibility note: CPU hot‑swap is forbidden. Verify total backplane power budget before installation. Legacy Series‑90‑30 modules are supported with restrictions, refer to system manual GFK‑2314. Full system download and I/O validation test must be performed after replacement.

Environmental Specifications

‑ Operating temperature: 0 ℃ ~ +60 ℃ ‑ Storage temperature: ‑40 ℃ ~ +85 ℃ ‑ Relative humidity: 5%‑95% non‑condensing ‑ Installation location: Indoor control cabinet, IP20 protection class ‑ EMC compliance: IEC 61000‑6‑2 ‑ Certifications: CE, UL Class I Div 2 hazardous‑location certification

Mechanical Data

‑ Weight: approx 1.05 kg (2.31 lbs) ‑ Dimension: RX3i dual‑slot CPU module form‑factor ‑ Handling note: ESD‑sensitive high‑speed processor circuitry. Periodically inspect smart lithium battery aging status. No onboard USB port.

Main Functions

1. High‑performance main processing unit for RX3i automation system. Executes IEC 61131‑3 user logic, floating‑point arithmetic, handles local and expansion‑rack I/O via dual PCI / serial backplane bus.
2. Two onboard serial ports for Modbus‑RTU field instruments and SNP communication. Ethernet functions are realized by external ETM001 module for SCADA, Modbus‑TCP and EGD data exchange.
3. Program and configuration stored in non‑volatile flash; runtime process data maintained by battery‑backed SRAM. Supports in‑system firmware upgrade for CPU and other backplane modules.
4. Front‑panel LED indicators:   ‑ Green CPU OK: CPU hardware normal status   ‑ Red SYS FLT: Hardware / memory / configuration system fault   ‑ Green RUN: User program executing   ‑ OUTPUTS ENABLED: Output scan active   ‑ I/O FORCE: I/O force function active   ‑ BATTERY: Low battery alarm   ‑ COM1 / COM2: Serial communication activity status

Installation & Wiring Requirements

1. Cut off full rack power supply before replacement. CPU hot‑swap is strictly forbidden. ESD protection must be applied during module handling.
2. Insert IC695CPU320 into two consecutive slots of RX3i universal main‑rack backplane and engage locking latches. Install IC695ACC302 smart battery module.
3. Serial wiring comply with GE RX3i hardware manual. Use shielded twisted‑pair for RS‑485 bus; install terminating resistor at bus end. Reliable protective‑ground connection is required. If Ethernet is needed, install IC695ETM001 module on backplane.
4. After replacement: Power‑on rack power, check CPU front‑panel LED status. Download hardware configuration and user application program. Complete I/O mapping validation and all communication link tests.
5. Replacement note: Confirm backplane provides sufficient 3.3 V / 5 V current capacity. Inspect battery health status. Full‑system commissioning test is mandatory before putting into service.