GE IC697CPM924 CPU Module Series 90-70

IC697CPM924 GE Fanuc Series 90-70 CPU Module

Product Introduction

The IC697CPM924 is a powerful 32-bit central processing unit from GE Fanuc, engineered specifically for the Series 90-70 programmable logic controller platform. This module delivers a clock speed of 64 megahertz, providing ample processing power for demanding automation tasks. Beyond basic fixed-point arithmetic, the IC697CPM924 also supports floating-point operations, making it suitable for applications that require precise mathematical calculations. With 1 megabyte of RAM on board, this CPU handles complex programs and large data sets with ease. A replaceable lithium battery safeguards your application data, retaining it for up to 6 months during mains power interruptions. Furthermore, the IC697CPM924 offers flexible configuration options through its integrated serial port, a parallel port on the bus transmitter module, or an optional Ethernet module. This versatility simplifies integration with various programming and monitoring devices.

Technical Specifications

The IC697CPM924 comes equipped with a robust set of technical features. Its microprocessor runs at 64 megahertz, ensuring fast execution of user logic. The module provides 1 megabyte of RAM, which stores both program code and operational data. This memory is battery-backed, with a lithium battery offering a shelf life of 10 years at 68 degrees Fahrenheit and a retention period of approximately 6 months after power loss. For communication, the IC697CPM924 includes one serial port, plus support for parallel and Ethernet connectivity through additional modules. The time-of-day clock on this CPU maintains accuracy within 3.5 seconds per day, while the elapsed time clock offers 0.1% accuracy. These timing features support time-stamped events and scheduling functions. The IC697CPM924 operates reliably across a temperature range of 0 to 60 degrees Celsius, making it suitable for most industrial environments.

Floating-Point and Mathematical Capabilities

One of the key advantages of the IC697CPM924 is its floating-point math support. Many industrial applications, such as process control, motion coordination, and data analysis, require calculations beyond simple integers. The IC697CPM924 handles these computations efficiently, reducing the need for external math processors or complex workarounds. Additionally, the CPU executes fixed-point operations with high speed, covering the majority of standard logic and control tasks. This combination of fixed and floating-point capabilities gives engineers the flexibility to implement sophisticated algorithms directly on the IC697CPM924 without performance degradation. As a result, this module fits well in applications ranging from basic machine control to advanced process regulation.

Memory and Battery Backup System

The IC697CPM924 provides 1 megabyte of RAM, which is partitioned between user programs, system variables, and data tables. When the PLC rack loses mains power, the replaceable lithium battery automatically takes over to preserve the memory contents. This battery retains data for a nominal period of 6 months under normal conditions. To replace the battery, you must first remove the old unit before installing the new one – do not mix old and new batteries. The battery's 10-year shelf life ensures that spare units remain viable for long-term storage. For mission-critical applications, schedule periodic battery checks to avoid unexpected data loss. The IC697CPM924 does not use volatile memory for critical parameters, so regular backups remain good practice even with battery protection.

Configuration and Programming Options

Setting up the IC697CPM924 involves several connectivity choices. The onboard serial port serves as the primary interface for programming and monitoring. Additionally, a parallel port on the bus transmitter PLC module offers an alternative connection path. For network-based configuration, an optional Ethernet module can be installed, allowing the IC697CPM924 to communicate with computers running the configuration software over a local area network. This Ethernet option is particularly useful for remote diagnostics and multi-PLC coordination. All configuration tasks use standard GE Fanuc programming tools compatible with Series 90-70 systems. The IC697CPM924 also features a 3-position RUN/STOP switch on the module face for local control. Alternatively, operators can remotely start or stop the CPU from programming computers, providing flexibility in system management.

Installation and Startup Procedure

Installing the IC697CPM924 requires careful adherence to safety procedures. First, remove power from the PLC rack before handling the module to prevent electrical damage. Next, insert the IC697CPM924 into an available slot on the Series 90-70 backplane, ensuring proper alignment with the connectors. Secure the module firmly using the retaining screws. After installation, reconnect power and observe the startup sequence. The IC697CPM924 runs through its internal diagnostics automatically. Once these checks complete successfully, the module becomes ready for programming. You can then load your application logic via the serial port, parallel port, or optional Ethernet connection. Finally, set the RUN/STOP switch to the desired position or issue a remote start command to begin execution.

Operating Temperature and Environmental Conditions

The IC697CPM924 operates within a temperature range of 0 to 60 degrees Celsius. Staying within this band ensures optimal performance and longevity. When temperatures exceed this range, the CPU may experience degraded performance, and extreme heat could cause permanent failure. Therefore, install the IC697CPM924 in a well-ventilated cabinet with adequate airflow. Avoid placing it directly above high-heat components like power supplies or output modules. Additionally, maintain reasonable humidity levels to prevent condensation. The IC697CPM924 does not require forced-air cooling in most installations, but leaving sufficient clearance around the module aids natural convection. For environments with wide temperature swings, consider additional cooling or heating measures to keep the IC697CPM924 within its specified range.

Clock Accuracy and Timing Features

The IC697CPM924 includes two clock functions critical for time-dependent operations. The time-of-day clock tracks absolute date and time, with a maximum drift of 3.5 seconds per day. This accuracy suffices for scheduling, event logging, and shift-based reporting. The elapsed time clock, which measures intervals, offers 0.1% accuracy – suitable for timing loops and process monitoring. These clocks run continuously as long as the battery retains power. During configuration, you can set the time-of-day clock using the programming software. The IC697CPM924 also supports time-stamping of alarm events, helping maintenance teams identify when issues occurred. For applications requiring higher precision, consider external time synchronization sources, though the internal clocks generally meet most factory automation needs.

Common Application Scenarios

The IC697CPM924 suits a wide variety of industrial applications. Manufacturing lines benefit from its fast scan times and robust I/O handling. Process industries, such as chemical plants or water treatment facilities, leverage its floating-point math for flow calculations and PID control. Material handling systems use the IC697CPM924 for conveyor sequencing and sorting logic. Additionally, building automation systems incorporate this CPU for HVAC control and energy management. Its 1 MB memory capacity accommodates moderately large programs, making it a cost-effective choice for mid-sized projects. System integrators appreciate the IC697CPM924 for its straightforward configuration and broad compatibility with existing Series 90-70 hardware. Whether upgrading an older system or building a new one, this CPU delivers reliable performance.

Packaging List

Your shipment of the IC697CPM924 includes the following items:

• One GE Fanuc IC697CPM924 CPU module

• One lithium backup battery (installed)

• One printed quick-start guide

• One anti-static protective bag

• Two rack mounting screws

Please note that this package does not include programming cables, software media, Ethernet modules, or I/O components. These items must be ordered separately. Additionally, no calibration certificates or warranty documents are enclosed in the box – these are available digitally upon request.

Shipping Information

We ship all IC697CPM924 orders using premier global carriers: FedEx, UPS, and DHL. Each module receives ESD-safe packaging to protect against static damage during transit. Tracking numbers are provided within 24 hours of order dispatch. Standard international deliveries typically arrive in 3 to 7 business days. Express shipping options are available for time-sensitive projects. Please verify your shipping address carefully to avoid delivery complications. All shipments include insurance coverage for the full product value.

Frequently Asked Questions

Q1: Can the IC697CPM924 replace an older Series 90-70 CPU directly?
Yes, the IC697CPM924 is physically compatible with Series 90-70 racks. However, you should verify that your existing power supply meets the module's requirements and that your programming software supports this model. Also, check that your application logic fits within the 1 MB memory limit.

Q2: How do I know when to replace the battery on the IC697CPM924?
The IC697CPM924 typically provides a battery low warning through the programming software or system status indicators. Regular preventive replacement every 3 to 5 years is recommended, even if no warning appears. Always replace the battery with the same type as specified in the manual.

Q3: Does the IC697CPM924 support Ethernet communication?
The IC697CPM924 does not have an integrated Ethernet port. However, you can add an optional Ethernet module to the rack. This module connects to the IC697CPM924 via the backplane and provides network access for programming and data exchange.

Q4: What happens if the IC697CPM924 exceeds 60 degrees Celsius?
Exceeding the maximum operating temperature of 60 degrees Celsius may cause erratic behavior or permanent damage to the IC697CPM924. Ensure proper cabinet cooling, maintain adequate airflow, and monitor ambient temperatures regularly. If overheating occurs, shut down the system and investigate the cause.

Q5: Can I use the IC697CPM924 with non-GE I/O modules?
The IC697CPM924 is designed for GE Fanuc Series 90-70 I/O modules. While some third-party VME-compatible modules may work, GE Fanuc does not guarantee compatibility or performance. For reliable operation, use only GE Fanuc approved I/O modules with the IC697CPM924.