FANUCSeries 90-70 Single-Slot CPU Module, 80C186 12 MHz, 32 Kbyte Configurable Memory, 512 Discrete I/O

Product Description

What this part is

A GE Fanuc IC697CPU731 — the single-slot CPU module for the Series 90-70 programmable logic controller. It is the processor of the rack: it executes the user ladder program, scans the I/O modules across the rack backplane, and holds the configuration and register data. Being a single-slot design it occupies one rack slot rather than the two taken by the larger 90-70 processors.

Decoding the order code

IC697 — GE Fanuc Series 90-70 product family.

CPU — central processor module.

731 — the single-slot 12 MHz 80C186 processor specification within the 90-70 CPU range.

X — hardware revision letter as stamped on this unit; revisions on the same base number share the same electrical specification and firmware compatibility class.

Published specifications

Type: Series 90-70 CPU module, single slot.

Microprocessor: 80C186, 12 MHz.

Memory: 32 Kbyte, user-configurable split between program and data memory.

Discrete I/O: up to 512 points.

Analogue I/O: up to 8000.

Programming and configuration: MS-DOS or Windows Logicmaster / control software, over the SNP serial port or via a separate Ethernet TCP/IP interface module.

Battery: lithium backup battery IC697ACC701 maintains program, data memory and the calendar clock.

Mounting: plug-in module in a Series 90-70 rack backplane.

Origin: USA.

What these specs mean in practice

The 731 sits at the entry end of the 90-70 processor range. 32 Kbyte of configurable memory and 512 discrete points are real ceilings — a large machine or plant application will outgrow this CPU, and the floating-point models (for example the IC697CPX782 with an 80486 core) exist for that reason. Replacing a larger 90-70 CPU with this one means the program size and I/O count have to fit, because it will refuse a configuration that exceeds its limits. Conversely, for a small legacy 90-70 rack it is the correct and space-efficient part.

What is not included

CPU module only. No Series 90-70 rack or backplane, no rack power supply, no I/O modules, no Ethernet or bus controller modules, no IC697ACC701 lithium battery, no SNP or programming cable, no connector kits, no Logicmaster or Proficy software, no ladder program and no documentation.

Quantity and configuration

Sold as one module.

Interchange guidance

IC697CPU731X, IC697CPU731 and the other revision letters (H, L and so on) are the same processor specification. Other 90-70 CPU numbers — CPU771, CPU772, CPU780, CPX772, CPX782 — are different processors with different clock speeds, memory sizes and slot widths and are not drop-in equivalents. Series 90-70 (IC697) modules do not fit Series 90-30 (IC693), Series Six (IC600) or Series Five racks.