GE Fanuc IC697CPU781 CPU Module 16MHz

Product Introduction

The GE Fanuc IC697CPU781 is a advanced processor module designed for the Series 90-70 programmable logic controller family. This 32-bit CPU uses an 80386DX microprocessor clocked at 16 megahertz, delivering exceptional processing power for complex control tasks. It supports up to 512 kilobytes of memory, which you can expand using various CMOS memory modules. Additionally, the IC697CPU781 handles a massive 12,000 digital I/O points and 8,000 analog I/O channels, making it suitable for large-scale manufacturing and process automation systems.

Processor and Performance

At the heart of the GE Fanuc IC697CPU781 lies the 80386DX processor, a true 32-bit architecture that provides fast execution of logic and mathematical operations. The 16 MHz clock speed ensures responsive scan cycles even with large user programs. Floating-point calculations are supported efficiently, enabling precise control of analog processes. Moreover, the internal time-of-day clock maintains accuracy within ±3.5 seconds per day, which is essential for time-stamped events and scheduled operations. This CPU module is built to handle demanding real-time applications with consistency and reliability.

Memory Expansion Options

The IC697CPU781 offers flexible memory expansion through several compatible modules. You can choose the IC697MEM31 (128 KB 32-bit CMOS), IC697MEM32 (256 KB with 256 KB non-volatile flash), IC697MEM33 (256 KB 32-bit CMOS), or IC697MEM35 (512 KB 32-bit CMOS). These expansion modules install directly onto the CPU, preserving valuable rack space. A lithium battery, available as the IC697ACC701, provides backup power with a shelf life of up to 10 years at 20 °C. This battery retains memory for up to six months without applied power, safeguarding your program and data during outages.

I/O Capacity and System Integration

A standout feature of the IC697CPU781 is its extensive I/O support. It accommodates up to 12,000 digital I/O points and 8,000 analog I/O channels, covering a wide range of field devices. The module communicates with I/O subsystems over the VME-compatible system bus, ensuring fast and deterministic data exchange. It supports IC660, IC661, and IC697 I/O modules, providing broad compatibility with existing GE Fanuc equipment. Furthermore, optional LAN modules, coprocessor modules, and bus controller modules are available to extend system functionality.

Communication and Programming

The GE Fanuc IC697CPU781 includes an RS-422/RS-485 compatible serial port for connecting a serial programmer or programming computer. Additionally, you can connect a programmer in parallel mode through the top port on the bus transmitter interface module. For network-based programming, an optional Ethernet communication module is required. This flexibility allows you to choose the most convenient programming method for your workflow. The CPU supports software configuration, giving you control over memory allocation and system parameters.

Security and Operational Controls

The IC697CPU781 incorporates several security features to protect your system. A keyswitch provides memory protection, preventing unauthorized changes to the user program. A 3-position operation mode switch lets you select between RUN, STOP, and TEST modes for safe commissioning and troubleshooting. Password-protected access adds another layer of security, ensuring that only authorized personnel can modify critical settings. These features make the GE Fanuc IC697CPU781 a secure choice for sensitive industrial applications.

Installation and Environmental Ratings

Installing the IC697CPU781 is simple. Insert the module into any slot in the Series 90-70 rack while the system is powered off. Connect the backup battery to the designated connector before startup. The module draws 1.6 Amps at 5 Volts DC input voltage, which is within the capacity of standard power supplies. It operates reliably across typical industrial temperature ranges and withstands vibration and electrical noise. This robustness ensures long-term performance in demanding environments.

Packaging List

• GE Fanuc IC697CPU781 CPU module (1 unit)

• Lithium battery (IC697ACC701, pre-installed)

• Memory expansion socket cover

• Installation quick-start guide

• Anti-static protective bag

Shipping Method: FedEx, UPS, or DHL (depending on destination availability).

Frequently Asked Questions

1. What is the maximum memory capacity of the IC697CPU781?
The IC697CPU781 supports up to 512 kilobytes of user memory using optional expansion modules.

2. How many I/O points can this CPU handle?
The GE Fanuc IC697CPU781 supports 12,000 digital I/O and 8,000 analog I/O channels.

3. What type of processor does this module use?
The IC697CPU781 uses an 80386DX 32-bit microprocessor running at 16 megahertz.

4. Can I connect a programmer via Ethernet?
Yes, but this requires installing an optional Ethernet communication module on the GE Fanuc IC697CPU781.

5. How long does the battery retain memory without power?
The lithium battery provides memory retention for up to six months with no applied power.