IC697MEM715B GE High-Speed RAM Expansion for IC697 CPUs

Product Overview

The GE Fanuc IC697MEM715B serves as a high-speed CMOS RAM expansion board for the Series 90-70 PLC platform. This module directly increases the storage capacity for complex user logic, extensive configuration files, and critical diagnostic data. By interfacing directly with IC697 CPU modules, it enables the execution of larger, more sophisticated automation programs required in power generation and large-scale manufacturing. We supply this unit as 100% Brand New original stock, featuring integrated battery backup to ensure total data retention during system power loss.

Technical Specifications

The IC697MEM715B provides high-integrity data storage with the following parameters:

• Model Number: IC697MEM715B

• Module Type: Memory Expansion Board

• Memory Technology: CMOS RAM with Battery Backup

• Storage Capacity: 512 KB (Supports configurations up to 128KB/512KB depending on CPU)

• CPU Compatibility: IC697 Series (e.g., IC697CPU781, IC697CPM915)

• Data Protection: Built-in Parity Checking

• Power Supply: Supplied via the PLC backplane

• Operating Temperature: 0°C to +60°C (32°F to 140°F)

• Storage Temperature: –40°C to +70°C

• Dimensions: 1.0 in x 4.3 in x 5.0 in (2.5 cm x 10.9 cm x 12.7 cm)

• Net Weight: 0.22 lbs (0.1 kg)

• Country of Manufacture: United States

• Tariff Code: 8523510000

Engineering Advantages

The IC697MEM715B resolves memory bottlenecking and data integrity challenges in high-demand industrial systems:

• Instant Logic Expansion: This board eliminates "Memory Full" errors during complex project deployments. It provides the necessary overhead for Sequential Function Charts (SFC) and large Function Block libraries, allowing engineers to consolidate multiple control tasks into a single CPU.

• Non-Volatile RAM Performance: The integrated battery backup transforms volatile CMOS RAM into a reliable storage medium. In the event of an unplanned power outage, the module preserves the entire register table and user program, allowing the PLC to resume operations immediately upon power restoration without re-downloading logic.

• Hardware-Level Error Detection: The IC697MEM715B utilizes continuous parity checking. If the module detects a bit-flip or memory corruption caused by electromagnetic interference (EMI), it immediately reports a fault to the CPU. This prevents the PLC from executing corrupted instructions that could damage field equipment.

• Seamless CPU Integration: The module features a plug-and-play design for Series 90-70 racks. It interfaces directly with the processor via the local high-speed bus, maintaining the sub-microsecond access speeds required for real-time motion control and rapid-response safety interlocks.

FAQs

Q: Which GE Fanuc CPUs support the IC697MEM715B expansion?A: This module works with most IC697 series central processing units, including high-performance models like the IC697CPU781 and the 133MHz IC697CPM915. Always verify your CPU’s maximum addressing limit in the hardware manual before installation.

Q: Does the IC697MEM715B require its own battery?A: The module typically relies on the battery system integrated into the Series 90-70 CPU or the rack's power supply to maintain its CMOS RAM. However, ensuring a fresh lithium battery is installed in the system is critical for preventing data loss during long-term shutdowns.

Q: How does the parity checking feature improve system safety?A: Parity checking monitors every byte of data stored in the RAM. If the hardware detects an inconsistency, it triggers a system diagnostic fault. This prevents the "silent failure" of control logic, ensuring that the PLC only executes verified, uncorrupted code.

Q: Can I install this module while the PLC is powered on?A: No. You must power down the Series 90-70 rack before inserting or removing the IC697MEM715B. Installing memory expansion modules while the backplane is energized can cause permanent damage to the CMOS chips and the CPU's memory bus.