GE IC697CPM925 CPU Module 64MHz Series 90-70

IC697CPM925 GE Fanuc PLC Processor 12K I/O

Product Introduction

The IC697CPM925 is a central processing unit from GE Fanuc for the Series 90-70 programmable logic controller family. This single-slot CPU module runs on a 64 MHz 80486DX2 microprocessor, achieving a boolean execution speed of just 0.4 microseconds per function. Consequently, it handles high-speed logic operations with remarkable efficiency. The module supports up to 12K points of discrete I/O in any combination, plus 8K words of analog I/O, making it suitable for a wide range of industrial control applications. Additionally, the IC697CPM925 comes with 1 MB of battery-backed RAM (using the IC697ACC701 lithium battery) to preserve program and data during power outages. A single RS485 serial port provides connectivity for programming and monitoring, while three LED indicators (OK, RUN, and ENABLED) offer clear operational status at a glance.

Technical Specifications

The IC697CPM925 delivers balanced processing power and I/O capacity for diverse automation tasks. Below are the key technical parameters:

• Processor: 80486DX2 at 64 MHz

• Boolean Execution Speed: 0.4 µs per function

• Floating-Point Math: Supported (32-bit)

• Discrete I/O Capacity: 12 K points (any mix)

• Analog I/O Capacity: 8 K words (max)

• RAM: 1 MB battery-backed (uses IC697ACC701 battery)

• Battery Shelf Life: 1 year at 20 °C

• Memory Retention: Up to 6 months without power

• Serial Port: 1x RS485 (supports SNP protocol, multi-drop)

• Current Required: 3.3 A at 5 V DC

• Slot Occupancy: 1 single slot

• Backplane Compatibility: VME C.1 standard

• LED Indicators: OK, RUN, Outputs Enabled

• Memory Protect: Yes (prevents unauthorized access)

Furthermore, the module includes a real-time clock with a time-of-day accuracy of 3.5 seconds per day and elapsed time accuracy of 0.01% (maximum). This feature proves valuable for time-stamped events and scheduled operations.

Compatibility and System Integration

The IC697CPM925 works seamlessly with a broad range of modules within the GE Fanuc ecosystem. Specifically, it supports:

• Entire IC660/IC661 I/O product families

• All IC697 analog and discrete I/O modules

• Intelligent option modules via the VME C.1 backplane

This extensive compatibility enables system integrators to build scalable and flexible control solutions. Moreover, the CPU can be programmed using several software platforms, including:

• Logicmaster 90-70

• VersaPro Professional Edition

• Proficy Machine Edition Logic Developer PLC Professional

A single RS485 serial port supports SNP protocol and multi-drop connections, simplifying communication with programming devices and other network nodes.

Cooling and Environmental Requirements

The IC697CPM925 requires proper thermal management to ensure reliable operation. The operating temperature range depends on cooling conditions:

• With forced air-cooling (70 CFM): 0 to 60 °C

• Without forced air-cooling: 0 to 40 °C

Therefore, for high-temperature environments or dense rack configurations, GE Fanuc recommends installing a forced-air cooling fan assembly. Adequate airflow prevents thermal-related performance degradation and extends module lifespan.

Installation Guidelines

Follow these steps to install the IC697CPM925 correctly:

1. Power Off – Disconnect power from the PLC rack before installation.

2. Slot Selection – Install the module in slot 1 of rack 0 (recommended) or any available slot.

3. Insertion – Slide the module along the card guides until it seats firmly into the backplane connector.

4. Battery Check – Verify the IC697ACC701 battery is installed and within its shelf life.

5. Wiring – Connect the RS485 serial cable to the communication port as needed.

6. Configuration – Use the programming software to set up I/O references and communication parameters.

7. Power On – Restore power and check the three LED indicators for normal startup.

For removal, squeeze the rack clips on the back cover to disengage them from the rack rail, then pull the module out and slide it along the card guide. Always replace the battery with a new one before the old battery is fully depleted.

Packaging List

Each IC697CPM925 unit includes:

• One GE Fanuc IC697CPM925 CPU module

• One lithium battery (IC697ACC701) pre-installed

• One terminal cover (attached)

• Quick reference card (printed)

Note: No programming cables, software media, or mounting hardware are supplied with the module.

Shipping and Logistics

All orders for the IC697CPM925 are shipped via trusted global carriers, including FedEx, UPS, and DHL. Each unit is carefully packaged to prevent damage during transit. Tracking information is provided once the order is dispatched. Express delivery options are available for urgent requirements.

Frequently Asked Questions (FAQ)

1. Can the IC697CPM925 replace an older CPU in my Series 90-70 rack?
Yes, the IC697CPM925 is fully compatible with Series 90-70 racks and backplanes. It directly replaces earlier CPU models with the same single-slot form factor and keying.

2. What programming software is compatible with this CPU?
The IC697CPM925 supports Logicmaster 90-70, VersaPro Professional Edition, and Proficy Machine Edition Logic Developer PLC Professional. Choose the version that matches your system requirements.

3. How long does the battery retain memory without power?
With the IC697ACC701 lithium battery, the IC697CPM925 retains program and data for up to 6 months without backplane power. The battery shelf life is 1 year at 20 °C.

4. What is the difference between the IC697CPM925 and the IC697CPX935?
The IC697CPM925 runs at 64 MHz with an 80486DX2 processor and includes one RS485 port. The IC697CPX935 runs at 96 MHz with an 80486DX4 processor and includes three serial ports. Choose based on your processing speed and communication needs.

5. Does the IC697CPM925 support floating-point math?
Yes, the IC697CPM925 is a 32-bit floating-point CPU. It efficiently handles complex mathematical calculations required in process control and motion applications.