GE Fanuc IC697MEM735 | Memory Module

Product Overview

The IC697MEM735 is a high-performance 32-Bit CMOS Expansion Memory module designed for the GE Fanuc Series 90-70 PLC system. This module provides essential volatile storage capacity, allowing the CPU to handle complex control algorithms and extensive data logging requirements.

Technical Configuration

The IC697MEM735 is architected to interface seamlessly with the Series 90-70 backplane. Key architectural features include:

• Memory Technology: Advanced 32-Bit CMOS architecture for low power consumption and high-speed data access.
• Data Integrity: Supports 6 months of memory retention during total power loss, ensuring system states are preserved.
• Bus Interface: Optimized for high-current backplanes, drawing 2.25 A to maintain signal stability across the expansion bus.
• Physical Form Factor: Compact 105 × 52 × 12 mm footprint allows for high-density slot utilization within the PLC rack.

Technical Specifications

Installation Guide

Proper handling of the CMOS circuitry is vital to prevent Electrostatic Discharge (ESD) damage. Ensure the PLC rack power is completely disconnected before inserting or removing the memory module.

Module Placement

Insert the IC697MEM735 into the dedicated expansion slot adjacent to the CPU. Firmly press the module until the connectors seat fully into the backplane. Verify that the locking tabs engage to prevent the module from loosening during high-vibration operation.

Battery Maintenance

To achieve the specified 6-month memory retention, ensure the CPU battery is fresh. We recommend replacing the system battery every 12 months as part of a predictive maintenance cycle to safeguard against data loss during extended shutdowns.

Engineering Advantages

The IC697MEM735 excels in extreme environments, offering shock resistance up to 55 g. Its wide operating temperature range allows for deployment in non-climate-controlled enclosures. Furthermore, the 32-bit architecture provides a significant performance boost over standard 16-bit modules, making it the ideal choice for high-speed motion control and complex PID loop processing within the GE Fanuc ecosystem.

Technical FAQs

Q1: How do I verify the module is recognized by the CPU?
A1: Check the hardware configuration in your programming software (such as Proficy Machine Edition). The CPU status ledger should reflect the additional CMOS memory capacity upon successful power-up.

Q2: What happens if the memory retention period is exceeded?
A2: If the module remains unpowered beyond 6 months, volatile data and logic may be lost. Always maintain a current backup of the PLC program on non-volatile media or a remote server.

Q3: Can this module be hot-swapped while the PLC is in RUN mode?
A3: No. Attempting to install or remove the IC697MEM735 while the bus is active can cause parity errors, CPU halts, or permanent hardware damage to the memory chips.