GE Series 90-70 manual Chapter Introduction, System Overview

Chapter

1

Introduction

System Overview

The Series 90±70 I/O Link Interface Module (IC697BEM721) is used to interface a Series 90±70 PLC to GE Fanuc and Fanuc products which may also be placed on the proprietary Fanuc I/O Link. The Fanuc I/O Link is a serial interface that provides high±speed exchange of I/O data between a master device and up to 16 slaves.

WORKMASTER II

PROGRAMMER

SERIES 90±70 PLC

POWER MATE POWER MATE

a44979

MASTER

SLAVE 0

SLAVE 1

PS

CPU

BTM

I/O LINK

FANUC

I/O LINK

(LINK #1)

POWER MATE POWER MATE

POWER MATE

MASTER

SLAVE 0

SLAVE 1

SLAVE 2

PS

BRM

I/O LINK

FANUC I/O LINK (LINK #2)

Up to four I/O Link Interface Modules can be installed in a Series 90±70 PLC. They can be located in the CPU rack and in expansion racks. Each I/O Link Interface Module can be used in either master or slave mode.

Two I/O Link Interface Modules are shown in the example system illustrated above±±one in the CPU rack and the other in an expansion rack. Each module is set up as a master with its own I/O Link. In this example, both of the I/O Link Interface Modules exchange data with Power Mate CNCs. Usually, when there are multiple I/O Link Modules in the same PLC, they are on separate I/O Links as shown here. However, it is possible to have more than one I/O Link Interface Module in the Series 90±70 connected to the same link, if that suits the needs of the application.

GFK-0644A 1