GE IC695CPU315 PACSystems RX3i High‑Performance CPU Controller

Description

Hardware & Electrical Specifications

‑ Model: IC695CPU315 ‑ Part Number: IC695CPU315 ‑ Module Type: RX3i High‑Performance CPU Controller, occupies 2 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 industrial processor ‑ User memory: 20 MB (SRAM battery‑backed + non‑volatile Flash) ‑ 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 ‑ Diagnostics: CPU hardware self‑test, backplane bus fault, I/O fault monitoring, memory checksum diagnosis ‑ PCB treatment: Conformal coated for dust, moisture and corrosion resistance ‑ Compatibility note: Hot‑swap of CPU module 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 3.0 kg ‑ Dimension: RX3i dual‑slot CPU module form‑factor ‑ Handling note: ESD‑sensitive high‑speed processor circuitry. Periodically inspect RTC lithium‑battery aging. 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 critical data stored in non‑volatile flash; runtime data maintained by battery‑backed SRAM. Supports in‑system firmware upgrade.
4. Front‑panel LED indicators:   ‑ Green CPU OK: CPU hardware normal status   ‑ Red FAULT: Hardware / memory / configuration fault   ‑ Green RUN: User program executing   ‑ I/O FORCE: I/O force function active   ‑ 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 IC695CPU315 into two consecutive slots of RX3i universal main‑rack backplane and engage locking latches.
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 OK / RUN / FAULT 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 RTC battery health. Full‑system commissioning test is mandatory before putting into service.