IC697CPU782 GE Fanuc PLC Processor 90-70

IC697CPU782 GE Fanuc PLC Processor Unit for Series 90-70

Product Introduction

The IC697CPU782 is a powerful CPU module from the GE Fanuc Series 90-70 Programmable Logic Controller family. This processor module uses an 80386DX microprocessor clocked at 16 MHz, delivering a Boolean execution speed of just 0.4 microseconds per function. For memory, it supports up to 512 KB of RAM, with 12 KB of discrete I/O memory and 8 KB of analog I/O memory available for system configuration. Additionally, the module includes a key-switch memory protection feature to prevent unauthorized access. Programming is accomplished through Logicmaster 90-70, VersaPro Professional Edition, or Proficy Machine Edition software. Meanwhile, this CPU handles floating-point math, compare operations, interrupts, and software-based PID control loops efficiently. Due to its VME C.1 standard compatibility, it allows seamless integration with GE Fanuc backplanes and I/O systems.

Technical Specifications

The IC697CPU782 offers solid performance for legacy automation systems. Its 80386DX processor runs at 16 MHz, while the Boolean execution time reaches 0.4 microseconds per function. In terms of memory, the module supports a maximum of 512 KB of RAM, with flexible allocation for program and data storage. For I/O capacity, it handles up to 12 KB of discrete I/O and 8 KB of analog I/O in any combination. Moreover, floating-point math is fully supported, enabling precise calculations and PID regulation.

This CPU also features a single RS485/RS-422 serial port for programming and diagnostics. Specifically, it draws 1.6 Amps at 5 Volts DC from the PLC backplane. The IC697CPU782 uses a lithium battery (catalog number IC697ACC701) to retain RAM contents during power outages, with a retention period of up to six months. Furthermore, the module supports 32-bit instructions and includes built-in interrupt capabilities. It works with IC660, IC661, and IC697 I/O products, as well as various LAN interface modules and coprocessor options. Therefore, this CPU provides a versatile solution for a wide range of control applications.

Mechanical and Environmental Ratings

This CPU module is designed for demanding industrial environments. Its vibration rating is 1 G at 57 to 150 Hz, and it withstands shocks of 15 G for 11 milliseconds. The operating temperature range is 0 to 60°C, while storage temperatures may range from -40 to 85°C. Meanwhile, relative humidity should stay between 5% and 95%, non-condensing.

For enclosure, GE Fanuc recommends a steel cabinet with an IP54 rating to protect against dust and splashing water. Agency approvals include CE, UL508, CSA22.2, and UL2279, ensuring compliance with international standards. Furthermore, the IC697CPU782 is manufactured under ISO9001 quality assurance protocols. Consequently, it proves suitable for global industrial use.

Installation Guidelines

Proper installation of the IC697CPU782 requires placing it in slot 1 of rack 0 within the Series 90-70 chassis. Supported backplanes include IC697CHS750, IC697CHS782, IC697CHS783, IC697CHS790, and IC697CHS791. Typically, standard 5-slot and 9-slot racks are used for housing this controller.

When connecting a programming computer, the integrated RS422/RS485 serial port provides a direct communication link. For Ethernet-based programming, however, you will need to install an optional communication module. The module draws its power entirely from the backplane, requiring no external power supply. Always ensure the key switch is in the appropriate position before making any memory changes. In addition, verify that the backplane firmware is compatible with this CPU model.

Packaging List

• One IC697CPU782 CPU module

• One lithium battery IC697ACC701 (pre-installed)

• One user manual (printed or digital)

• One serial communication cable (optional, depending on kit)

Shipping Method: FedEx, UPS, or DHL

Frequently Asked Questions

1. Can the IC697CPU782 be used as a replacement for other Series 90-70 CPUs?
Yes, the IC697CPU782 is compatible with most Series 90-70 racks and I/O systems. Nevertheless, verify that your existing program memory size and I/O configuration fall within the 512 KB RAM and 12K/8K I/O limits.

2. What software is required to program the IC697CPU782?
You can program this module using Logicmaster 90-70, VersaPro Professional Edition, or Proficy Machine Edition Logic Developer PLC Professional Edition. These run on MS-DOS or Windows operating systems.

3. How long does the battery retain memory without power?
The IC697ACC701 lithium battery provides memory retention for up to six months without primary power applied to the controller. Additionally, its shelf life is rated at 10 years.

4. Does the IC697CPU782 support Ethernet communication directly?
No, the module only includes an RS485/RS-422 serial port. For Ethernet connectivity, however, you must install an optional LAN interface module in the rack.

5. Can the IC697CPU782 handle analog I/O and PID control?
Yes, this CPU supports up to 8 KB of analog I/O memory and includes software-based PID controllers. Furthermore, floating-point math is also supported for precise process control applications.