GE Fanuc IC697MEM717C – CMOS Expansion Memory for Series 90-70 PLCs

The GE Fanuc IC697MEM717C is a CMOS expansion memory module designed for Series 90-70 CPUs. From my experience, it’s the go-to part when a 90-70 system needs more retentive space for larger logic, reference tables, or recipe data without consuming an extra rack slot. It seems to be the sweet spot for mid-to-large programs where stability and battery-backed retention are important.

Typical use cases include expanding PLC program size during process upgrades, adding capacity for trend buffers and recipes in batch applications, or safeguarding critical reference data through power interruptions. One thing I appreciate is the straightforward installation—no external wiring or configuration tools, just a proper power-down and ESD-safe handling.

Our Order Process & Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• Battery-backed CMOS memory – Helps preserve logic, configuration, and reference data through power loss (battery via CPU).
• Series 90-70 native compatibility – Designed to work with GE Fanuc IC697 CPUs that support expansion memory.
• Nominal 512 KB capacity – Typically provides ample space for medium-to-large ladder logic and data tables in many cases.
• No extra rack slots – Installs as a plug-in module within the CPU assembly; zero impact on rack layout.
• Industrial temperature range – Suited for control cabinets in typical plant environments.
• Low burden on system power – Draws minimal power directly from the CPU/backplane, no separate supply needed.

Technical Specifications

Related & Supporting Products

• IC697MEM715 – Lower-capacity CMOS memory for smaller programs or basic data retention.
• IC697MEM719 – Higher-capacity option for larger applications and more extensive reference tables.
• IC697CPU772 / IC697CPU781 – Series 90-70 CPUs that typically accept expansion memory; check revision compatibility.
• IC697PWR711 – Power supply for Series 90-70 racks, often paired with high-I/O systems.
• IC697CHS750 – 90-70 baseplate/chassis for modular expansion (I/O, comms, specialty modules).
• Lithium CPU battery (Series 90-70) – Keeps CMOS data retained; replace per maintenance schedule.

Installation & Maintenance

• Environment – Install in a clean, dry control cabinet with adequate ventilation; follow standard cabinet wiring and grounding practices.
• ESD and power-down – Power down the rack and observe ESD precautions before inserting/removing the memory module.
• CPU settings – Verify memory protection settings and CPU firmware compatibility; reload program and reference data after upgrade if required.
• Battery maintenance – The CPU battery backs the CMOS memory; replace on the manufacturer’s interval to avoid data loss (commonly every 3–5 years, site conditions may vary).
• Routine checks – Periodically back up your PLC project, confirm battery status in diagnostics, and clean cabinet filters to maintain stable temperatures.

Quality & Certifications

• Certifications – Typically CE and UL/cUL for industrial control; RoHS status can depend on production date and revision.
• Manufacturer quality – Built to GE Fanuc’s industrial standards for the Series 90-70 platform.
• Our guarantee – 365-day warranty; items are tested and packed for safe transit.