IC697MEM717 | GE Fanuc | Series 90-70 256KB CMOS Expansion RAM Module

Product Overview

The GE Fanuc IC697MEM717 provides essential volatile storage expansion for Series 90-70 Programmable Logic Controllers. This 256KB CMOS Expansion RAM module increases the capacity for complex logic programs and extensive data tables without consuming an additional rack slot. It interfaces directly with high-performance CPUs and Programmable Coprocessor Modules (PCM) to facilitate advanced automation tasks. We supply this unit as 100% Brand New original equipment, ensuring factory-spec access speeds and long-term data integrity for your critical control architecture.

Technical Specifications

Engineering Advantages

• Zero-Slot Footprint: The IC697MEM717 mounts directly onto the existing CPU or PCM circuit board. This daughter-card design expands memory capacity while preserving valuable rack space for additional I/O or communication modules.

• High-Speed Execution: With an access time of less than 200 nanoseconds, this CMOS RAM prevents processing bottlenecks. It supports rapid-fire logic execution and high-frequency data logging, maintaining the deterministic performance of the Series 90-70 system.

• Granular Configuration: Engineers can configure the memory allocation between the application program and register data. This flexibility allows you to tailor the PLC resources to specific project requirements, whether the system demands heavy computational logic or extensive historical data storage.

• Robust Data Verification: The module utilizes the CPU’s native checksum routines to verify data blocks during every scan. This active monitoring detects potential memory corruption instantly, preventing the execution of faulted logic in high-stakes industrial environments.

FAQs

• Does the IC697MEM717 require a separate battery? No. The module relies on the lithium battery located on the host CPU or PCM module for data retention during power outages. Always verify the health of the host battery before long-term shutdowns.

• Can I use this module with any Series 90-70 CPU? This specific 256KB expansion module is designed for the CPU 771 and CPU 772, as well as various PCM modules. Check your CPU manual to ensure the hardware headers match the IC697MEM717 pinout.

• How does the system recognize the additional memory? Upon installation and power-up, the PLC hardware configuration software (such as Proficy Machine Edition) detects the expansion. You must update the configuration settings to allocate the new 256KB to the desired memory registers or logic space.

• Why should I choose Brand New over refurbished RAM? CMOS components are sensitive to electrostatic discharge (ESD) and thermal aging. Our 100% Brand New IC697MEM717 modules haven't been exposed to the cumulative heat or handling risks of used units, ensuring the highest possible reliability for your system's "brain."