TheIC697MEM717is a plug-in CMOS Expansion Memory Module designed for the GE Fanuc Series 90-70 PLC system. This module provides 128 KB (often listed as a minimum of 64 KB depending on the parity configuration) of volatile CMOS RAM. It is used to expand the storage capacity for user logic programs, register data (%R), and system configuration, allowing the CPU to handle more complex automation sequences and larger data tables.
Specifications
Part Number:IC697MEM717
Series:Series 90-70 PLC
Memory Type:CMOS RAM (Volatile)
Storage Capacity:128 Kilobytes
Compatibility:Plugs directly into a dedicated daughterboard slot on Series 90-70 CPU modules (e.g., IC697CPU731, CPU771, CPU772).
Battery Backup:Dependent on the PLC rack's power supply battery (IC697ACC701) for data retention during power-off.
Dimensions:29.2 cm x 21.3 cm x 4.0 cm (Packaged size).
Weight:0.48 kg (approx. 1.05 lbs).
Origin:USA.
Features
Seamless Scalability:Allows for memory upgrades without replacing the entire CPU module, providing a cost-effective path for expanding existing control systems.
High-Speed Access:Designed with a 32-bit data path to match the processing speed of the 90-70 CPU, ensuring no "wait states" are introduced during logic execution.
Data Integrity:Features built-in parity checking to detect and alert the system of any memory corruption or hardware failures.
Easy Installation:The module is a "daughtercard" style PCB that snaps into the CPU's mainboard, requiring no additional wiring or external power.
Industrial Durability:Built to withstand the harsh electrical noise and thermal variations typical of manufacturing and energy plant environments.
