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  • IC697MEM731
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IC697MEM731

90-70 Series IC697MEM731 GE Fanuc Volatile Memory Board

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  • Manufacturer: General Electric

  • Product No.: IC697MEM731

  • Product Type: Memory Expansion Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 450g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The GE Fanuc IC697MEM731 is a high-performance memory expansion daughterboard engineered for the Series 90-70 PLC ecosystem. This module provides critical battery-backed SRAM storage, allowing industrial control systems to maintain user logic, register data, and system configurations during power interruptions.

Core Technical Advantages

The IC697MEM731 offers robust data integrity and physical durability for demanding manufacturing environments:

Zero-Slot Expansion

This module operates as a field-installable daughterboard. It plugs directly into the host CPU, allowing engineers to upgrade system memory capacity while keeping expensive I/O slots open for other functional modules.

Advanced Error Detection

To ensure process safety, the module supports real-time background parity monitoring. The CPU checksum routine identifies and reports parity faults in each byte, preventing corrupted data from affecting critical machine logic or safety protocols.

Extended Operational Life

With an MTBF exceeding 100,000 hours and a high-efficiency power design (consuming ≤ 300 mW), the IC697MEM731 is built for long-term reliability. Its rugged construction maintains performance across an extreme temperature range of -20°C to +70°C.

Technical Specifications

Parameter Specification
Memory Retention 6 Months (Nominal without power)
Power Consumption ≤ 300 mW
Startup Time 200 ms (Cold start to ready)
Operating Temperature -20°C to +70°C
Weight / Dimensions 450g / 100 x 120 x 20 mm
CPU Compatibility GE 780, 781, 782, 788, and 789

Engineering Installation & Maintenance

Adhering to correct installation procedures protects the delicate CMOS components of the IC697MEM731:

ESD & Handling Precautions

Static electricity can damage SRAM cells. Always use a grounded ESD wrist strap when handling the module. Ensure the CPU is completely powered down before attempting to seat the daughterboard onto the host pins.

Mechanical Fastening

When securing the module, use a Philips screwdriver and do not exceed a torque of 0.5 Nm on fasteners. Overtightening can cause micro-cracks in the PCB or damage the CPU connector interface.

Retention Testing

Verify the battery-backed functionality by cycling power after a program upload. The module is rated to hold user logic through 5,000 power cycles, but the health of the system battery in the CPU rack must be monitored to ensure the 6-month nominal retention period.

Technical FAQs

Q1: Does the IC697MEM731 require a specific firmware version?
A1: Compatibility depends on the host CPU. It is fully supported by the GE 780-789 families; however, ensure your CPU firmware is updated to recognize expanded memory addressing.

Q2: What happens if a parity fault is detected?
A2: The CPU checksum routine will trigger a system fault. Depending on your software configuration, the PLC can be set to "Stop" mode to prevent the execution of corrupted logic.

Q3: Is this module compatible with Series 90-30 PLCs?
A3: No. The IC697MEM731 is exclusive to the high-end Series 90-70 large-scale PLC architecture.

🏷️ Tags: Memory Expansion Module

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