GE IC695CPU315‑BB PACSystems RX3i CPU Module
Product Introduction
The GE IC695CPU315‑BB is a high‑performance CPU controller module for the PACSystems RX3i series. It fits the PCI‑bus universal backplane and is designed for medium‑to‑large‑scale industrial automation control systems.
Equipped with a 1 GHz industrial processor and 20 MB user logic memory, the IC695CPU315‑BB features onboard RS‑232 and RS‑485 dual serial ports. There is no built‑in USB or Ethernet port; Ethernet and fieldbus connections are realized via additional communication expansion modules.
This CPU supports IEC‑standard programming languages plus C‑language development. It can manage up to 32K discrete I/O points and 32K analog I/O points, with a maximum of 8 local racks. It is suitable for data computation in complex process control and equipment interlocking scenarios and is widely used for project retrofits and spare‑part replacement of legacy systems.
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Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | IC695CPU315‑BB |
| Product Type | RX3i Controller CPU Module |
| Processor Clock | 1 GHz |
| Boolean Instruction Execution Speed | 0.047 ms per 1K logic steps |
| User Logic Memory | 20 MB |
| Storage Media | SRAM, Flash memory; battery‑backed real‑time clock |
| Backplane Requirement | Universal PCI‑bus backplane, occupies 2 backplane slots |
| Onboard Interfaces | RS‑232, RS‑485 serial ports; no USB, no built‑in Ethernet |
| Supported I/O Scale | 32K discrete I/O, 32K analog I/O; max. 8 local racks |
| Power Consumption | 3.3VDC: 1750mA; 5VDC: 1200mA |
| Supported Programming Languages | Ladder Logic, Function Block Diagram, Structured Text, C language |
| Programming Software | Proficy Machine Edition Logic Developer Professional V5.6 or higher |
| Supported Protocols | SNP, Serial I/O, Modbus RTU Master / Slave; expansion modules support Profinet, Modbus‑TCP, Genius, Profibus‑DP, DeviceNet |
Core Functional Advantages
High‑speed logic execution with 0.047 ms/K boolean instruction speed shortens overall scan cycle to meet high‑real‑time process control requirements.
Combined large‑capacity SRAM and Flash storage with battery‑backed RTC preserves critical process data upon power loss and reduces external storage hardware investment.
Multi‑language mixed programming supports standard IEC languages together with C‑language development for deploying complex algorithms and data‑processing routines.
Dual independent serial ports natively support Modbus RTU master‑slave communication for direct connection with HMIs, third‑party meters and serial‑field devices.
Comprehensive diagnostic functions and hot‑swappable companion modules enable fast fault location and minimize system downtime.
Online firmware upgrade without module removal simplifies maintenance. Partial I/O hardware from the legacy 90‑30 series is supported for smooth system migration.
Product Features
GE IC695CPU315‑BB has no onboard Ethernet or USB ports. All network functions rely on RX3i‑series communication expansion modules.
Supports up to 512 program blocks, each block maximum 128 KB. Automatic memory allocation for symbolic variables is available.
Dual backplane bus architecture: high‑speed PCI backplane for newer I/O modules; serial backplane for compatibility with legacy‑style modules.
Complete status LED indicators visually display CPU run, fault and communication status.
Partition‑configured memory for programs and data to satisfy storage planning for different projects.
Application Fields
‑ Water treatment and sewage management ‑ Power‑plant auxiliary control systems ‑ Metallurgical production lines ‑ Material‑conveying pipelines ‑ Large‑scale packaging machinery ‑ Oil‑gas field surface measurement and control ‑ Factory production‑line retrofitting and upgrading ‑ Spare‑part replacement for existing GE RX3i systems
Peer‑Product Comparison
| Part Number | User Memory | On‑Board USB | Slot Occupancy |
|---|---|---|---|
| IC695CPU315‑BB | 20 MB | No | 2 slots |
| IC695CPU320 | 64 MB | No | 2 slots |
| IC695CPE305 | 5 MB | USB‑A | 1 slot |
| IC695CPE310 | 10 MB | USB‑A | 2 slots |
The IC695CPU320 provides larger 64 MB memory compared with IC695CPU315‑BB. The CPE series comes with native Ethernet and USB ports with identical CPU scan performance and fits new projects. The IC695CPU315‑BB is preferred for retrofit projects without built‑in network requirements.
Compatible Products
‑ Universal Backplane: IC695CHS012 (12‑slot universal backplane), IC695CHS007 (7‑slot universal backplane)
‑ Power Supply Modules: IC695PSA140, IC695PSD040
‑ Ethernet Communication Module: IC695ETM001
‑ Profibus‑DP Module: IC695PBM300
‑ Redundancy Synchronization Module: IC695RMX128
‑ I/O Modules: IC694‑series and IC695
‑series discrete / analog I/O modules
‑ Programming Software: Proficy Machine Edition Logic Developer Professional V5.6 or above
FAQ
Q: Does IC695CPU315‑BB have built‑in Ethernet for direct network connection?
A: The IC695CPU315‑BB has no native Ethernet port. An Ethernet expansion module such as IC695ETM001 must be installed for Ethernet communication.
Q: What is the difference between IC695CPU315‑BB and IC695CPU315? What does the ‑BB suffix mean?
A: The ‑BB suffix indicates hardware revision. Core hardware parameters and program logic remain identical. The ‑BB version includes hardware compatibility and EMC optimization; direct mutual replacement is allowed in projects.
Q: What is the maximum number of local racks supported by IC695CPU315‑BB?
A: Hardware specification allows up to 8 local racks. Actual configuration shall calculate backplane power load and must not exceed power‑supply capacity.
Q: Can legacy Series 90‑30 I/O modules be used directly when migrating from 90‑30 systems?
A: The RX3i universal backplane supports partial Series 90‑30 modules. Please refer to hardware manuals. Certain special intelligent modules are incompatible and shall be substituted with corresponding IC695‑series modules.
Q: Which spare part shall be replaced when battery alarm occurs during operation?
A: This module uses the backplane‑mounted battery assembly. SRAM real‑time data will be lost upon battery depletion. Replace the matching battery component while keeping CPU powered on to avoid data loss.
Q: Can IC695CPU315‑BB run C‑language programs? Is extra software required?
A: C‑language is hardware‑supported. Install the PACSystems C Toolkit included within the Proficy Machine Edition software suite.
Q: What is the minimum bill‑of‑material for a complete system with IC695CPU315‑BB?
A: Minimum components: IC695CPU315‑BB, universal backplane, RX3i power‑supply module. Add communication modules for network connectivity and I/O modules as required.
Q: Can IC695CPU315‑BB directly replace IC695CPU320?
A: Backplane compatibility exists, though memory capacity differs. Verify project program memory consumption and update CPU model setting inside Proficy Machine Edition before download.
Recommended GE Part Numbers
IC695CPU320, RX3i CPU with dual onboard serial ports
IC695CPE305, RX3i CPU with built‑in USB, Ethernet and single serial port
IC695CPE310, RX3i CPU with built‑in USB, Ethernet and dual serial ports
IC695CPE330, RX3i dual‑core high‑performance controller
IC695CPK330, RX3i controller with energy backup pack
IC695CRU320, RX3i bumpless‑transfer redundant CPU
IC695ETM001, RX3i Ethernet communication module
IC695PBM300, RX3i Profibus‑DP master module
IC695PSA140, RX3i 140 W power‑supply module
IC695CHS012, RX3i 12‑slot universal backplane
IC695RMX128, RX3i redundancy sync memory module
IC695PSD040, RX3i 40 W power‑supply module
IC695CPE400, RX3i industrial IoT controller
IC695CPL410, RX3i controller with WebHMI function
IC695ACC402, RX3i energy backup assembly
Technical Document Notes
‑ For commissioning and configuration, refer to manual GFK‑2314 system manual.
‑ Check IC695CPU315‑BB datasheet for power consumption and rack‑expansion limits.
‑ Proficy Machine Edition software version shall not be lower than V5.6. C
‑language functions require matching‑version C‑Toolkit.
‑ Firmware upgrade is performed via serial port or expansion Ethernet module; no onboard USB upgrade channel is available.
Important Notes
‑ IC695CPU315‑BB works only with universal PCI backplanes. Non‑universal backplanes are not supported. The module occupies 2 slots; reserve sufficient rack slots during layout.
‑ No onboard Ethernet port; select Ethernet expansion modules in the early project planning phase.
‑ Periodically inspect backup‑battery status. SRAM variable data will be lost on power‑off if battery fails; program files stored in Flash remain unaffected.
‑ Confirm Proficy Machine Edition software version before program download. Older software versions cannot recognize all functions of IC695CPU315‑BB.
‑ Configure termination resistors for RS‑485 wiring to prevent serial‑port packet loss and garbled communication.
Product Tags
IC695CPU315‑BB, PACSystems RX3i CPU module, GE RX3i CPU module, RX3i controller, GE PLC CPU, IC695CPU315, RX3i CPU controller, industrial PLC module, GE programmable controller, RX3i central processor module
