GE GSD3900 User Manual

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GE Fanuc Automation

Programmable Control Products

Series 90t-70 I/O Link Interface Module

GFK–0644A February 1993

Warnings, Cautions, and Notes as Used in this Publication

Warning notices are used in this publication to emphasize that hazardous voltages, currents, temperatures, or other conditions that could cause personal injury exist in this equipment or may be associated with its use.

In situations where inattention could cause either personal injury or damage to equipment, a Warning notice is used.

Caution notices are used where equipment might be damaged if care is not taken.

GFL–002

Warning

Caution

Note

Notes merely call attention to information that is especially significant to understanding and operating the equipment.

This document is based on information available at the time of its publication. While efforts have been made to be accurate, the information contained herein does not purport to cover all details or variations in hardware or software, nor to provide for every possible contingency in connection with installation, operation, or maintenance. Features may be described herein which are not present in all hardware and software systems. GE Fanuc Automation assumes no obligation of notice to holders of this document with respect to changes subsequently made.

GE Fanuc Automation makes no representation or warranty, expressed, implied, or statutory with respect to, and assumes no responsibility for the accuracy, completeness, sufficiency, or usefulness of the information contained herein. No warranties of merchantability or fitness for purpose shall apply.

The following are trademarks of GE Fanuc Automation North America, Inc.

Alar m Master CIMST AR Helpmate PROMA CRO Series Six CIMPLICITY Field Control GEnet Logicmaster Series One Series 90 CIMPLICITY 90–ADS Genius Modelmaster Series Three VuMaster CIMPLICITY PowerTRA C Genius PowerTRA C ProLoop Series Five Workmaster

Content of this Manual

This book is a reference to the features, operation, installation, and configuration of the GE Fanuc Series 90t-70 I/O Link Interface Module (IC697BEM721).

Chapter 1. Introduction: Describes the functions and features of the Series 90-70 I/O Link Interface Module.

Chapter 2. Installation: Includes basic setup procedures. Chapter 3. Series 90-70 PLC Configuration: Shows how to add an I/O Link Interface

Module to the Series 90-70 PLC system. Chapter 4. Series 90-70 PLC Programming: Explains how to configure, monitor, and

control the I/O Link Interface Module.

Related Publications

Logicmaster 90-70 Users’s Manual (GFK–0263). Reference manual for system operators and others using the Logicmaster 90-70 software to program, configure, monitor, or control a Series 90-70 PLC and/or a remote drop.

Preface

Power Mate Connection, Programming, Maintenance Manual (GFZ–61613). Reference

manual to setting up, programming, operating, and maintaining a P ower Mate system. Series Zero Connection Manuals. For 0 and 00-TC, TF, TTC, MC, MF, GCC, GSC, and PC

controls, the connection manual is GFK–61393. For 0-L and 00-L controls, the connection manual is GFZ-61573.

Series Zero Operator Manuals. For 0 and 00- TC, TF, TTC, and GCC controls, the operator manual is GFZ-61394. For 0 and 00-MC, MF, and GSC controls, the operator manual is GFZ-61404. For 0-PC and 00-PC controls, the operator manual is GFZ-61594. For 0-L and 00-L controls, the operator manual is GFZ-61574.

Series 15 Connection Manual (GFZ-61213E). Series 15 Operator/Programming Manual (GFZ-61213E). Series 16 Connection Manual (GFZ-61874E).

Series 16 Operator Manuals. For the 16-MA control, the operator manual is GFZ-61874. F or

16-TA and 16-TTA controls, the operator manual is GFZ-61804. Series 16 Maintenance Manual (GFZ-61805).

We Welcome Your Comments and Suggestions

At GE Fanuc automation, we strive to produce quality technical documentation. After you have used this manual, please take a few moments to complete and return the Reader’s Comment Card located on the next page.

Jeanne Grimsby

senior technical writer

GFK–0644A

iii

Chapter 1 Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System Overview 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Application Software 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Module Description 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Module Specifications 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cable T ypes for the I/O Link 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical Adapter 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation of the I/O Link 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Getting Started 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 2 Installation 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing the I/O Link Interface Module in the Rack 15 . . . . . . . . . . . . . . . . . . .

Removing the I/O Link Interface Module from the Rack 16 . . . . . . . . . . . . . . .

Connecting the I/O Link Interface Module to Other Devices 17 . . . . . . . . . . . .

Serial Port Pin Assignments 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Optical Adapter Installation 20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contents

Chapter 3 Logicmaster 90-70 Configuration 21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 4 Programming Guide 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview 23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting a Program Block 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A dding the Program Block Logic to an Application Program 24 . . . . . . . . . . . .

Calling the Program Block 25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Program (%P) References for the I/O Link Program Blocks 26 . . . . . . . . . . . . .

Global (%G) References for the I/O Link Program Blocks 27 . . . . . . . . . . . . . . .

Configuring I/O Links 28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Controlling the I/O Link Module 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Monitoring Link Operation 32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

GFK–0644A Series 90-70 I/O Link Interface Module User’s Manual - February 1993

restart lowapp ARestart oddapp: ARestarts for autonumbers that do not restart in each chapter . figure bi level 1, reset table_big level 1, reset chap_big level 1, reset1 Lowapp Alwbox restart evenap:A1app_big level 1, resetA figure_ap level 1, reset table_ap level 1, reset figure level 1, reset Figure 1. table level 1, reset Table 1. these restarts oddbox reset: 1evenbox reset: 1must be in the header frame of chapter 1. a:ebx, l 1 resetA a:obx:l 1, resetA a:bigbx level 1 resetA a:ftr level 1 resetA c:ebx, l 1 reset1 c:obx:l 1, reset1 c:bigbx level 1 reset1 c:ftr level 1 reset1 Reminders for autonumbers that need to be restarted manually (first instance will always be 4) let_in level 1: A. B. C. letter level 1:A.B.C. num level 1: 1. 2. 3. num_in level 1: 1. 2. 3. rom_in level 1: I. II. III. roman level 1: I. II. III. steps level 1:

1. 2. 3.

Chapter 1 Introduction

section level 1 1

System Overview

figure bi level 1 table_big level 1

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.

a44979SERIES 90–70 PLC

WORKMASTER II

PROGRAMMER

CPU

MASTER

BTM

BRM

I/O LINK

(LINK #1)

MASTER

FANUC

I/O LINK

POWER MATE POWER MATE

SLAVE 0 SLAVE 1

POWER MATE

SLAVE 0

FANUC

I/O LINK

(LINK #2)

POWER MATE POWER MATE

SLAVE 1 SLAVE 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.

GFK-0644A

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 P ower 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.

Master or Slave Operation

When used as a master, an I/O Link Interface Module can receive up to 1024 discrete inputs from devices on the I/O Link, and send up to 1024 discrete outputs. P otential slave devices include the Series 90–30 PLC and the Power Mate CNC.

When used as a slave, the Series 90–70 I/O Link Interface Module can receive up to 64 discrete inputs from the master, and send up to 64 discrete outputs. The master may be another Series 90–70 PLC, a Series 15, Series 16, or Series 18 CNC, a Series 0 Model C CNC, or an F–D Mate CNC. The Series 90–70 PLC and Series 0 CNC can be used as either master or slave.

In the example system shown below, the Series 90–70 PLC shown at the top functions as an area controller for three machine cells. The area controller has two I/O Link Interface Modules, each of which operates as an I/O Link master.

SERIES 0 CNC

POWER MATE POWER MATE

CELL #1

AREA CONTROLLER

SERIES 90–70 PLC

I/O LINK

CELL #2

SERIES 90–70 PLC

I/O LINK

SERIES 0 CNC

a45002

CELL #3

I/O LINK

POWER MATE POWER MATE

SERIES 90–30 PLCSERIES 90–30 PLCSERIES 90–30 PLC

In this system, the left I/O Link from the area controller goes to cell 1, where a Series 0 CNC, two single–axis Power Mate CNCs, and a Series 90–30 PLC are the slaves. They control the operations of a large machine and its auxiliary equipment. The right I/O Link from the area controller goes to another Series 90–70 PLC. That PLC serves as a slave on the link to the area controller, and as a master on two other links to smaller machine cells. In cell 2, a Series 0 CNC and a Series 90–30 PLC are the slaves. In machine cell 3, the slaves are a Series 90–30 PLC and two Power Mate CNCs.

2 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

GFK-0644A

Application Software

The Series 90–70 I/O Link Interface Module is provided with two application software diskettes (catalog number IC641SWP708), a 3-inch and a 5-inch diskette. The content of these diskettes is the same.

This application software can be used to integrate up to four I/O Link Interface Modules into the PLC’s application program. There are three Program Blocks on a diskette. Each will transfer I/O data between the module and the PLC, perform diagnostics functions, and transfer application program commands to the module.

One Program Block is selected as being most appropriate for the application, and added to the application program. Additional application program logic can be created to perform the following functions:

1. To specify the number of I/O Link Interface Modules present in the PLC.

2. To specify, for each I/O Link Interface Module: A. A rack and slot location in the Series 90–70 PLC. B. Master or slave operation.

3. And, for each I/O Link Interface Module that will be a master: A. T o assign a data length and I/O addresses for each slave on its link. B. To control operation of the link and monitor module and link status.

Chapter 4 explains how to select the best Program Block for your system, and how to incorporate it in an application program.

3GFK–0644A Chapter 1 Introduction

Module Description

An I/O Link Interface Module occupies one module slot in a Series 90–70 PLC rack. It can be installed in any rack, in any slot except rack 0 slot 1, which is reserved for the CPU Module.

MODULE OK LINK ACTIVE

LINK CFG

RESET

PUSHBUTTON

MODEL 70

BEM 721

MODULE OK LINK ACTIVE LINK CFG

ON OR BLIN K = OK

PUSH TO RESET I/O LINK INTERFACE

MODULE FUNCTION SERIES 90–70

SERIAL I/O LINK INTERFACE

a45015

MODEL 70

BEM 721

MODULE OK LINK ACTIVE LINK CFG

ON OR BLIN K = OK

PUSH TO RESET I/O LINK INTERFACE

MODULE FUNCTION SERIES 90–70

SERIAL I/O LINK INTERFACE

RS–422/485

CONNECTOR

RS–422/485

CONNECTOR

: MASTER MODE

RS–422/485 SERIAL PORT

(JD1A)

RS–422/485 SERIAL PORT

NOT

USED

MODULE IC697BEM721 LABEL 44A726758–125R01

: MASTER MODE : SLAVE MODE

RS–422/485 SERIAL PORT

(JD1A)

RS–422/485 SERIAL PORT

NOT

USED

(JD1A)

MODULE IC697BEM721 LABEL 44A726758–126R01

LEDs

The I/O Link Interface Module has three LEDS that show its operating, configuration, and communications status.

Module OK: indicates the module’s operating status. Link Active: indicates the module’s communications status. Link Cfg: indicates whether I/O Link configuration has occurred.

4 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

GFK-0644A

Reset Pushbutton

The Reset pushbutton provides a convenient means of reset if a failure occurs. If the module is being used as a master, pushing the Reset button resets both the module and operation of the link. The application program must be used to re–initialize the link. If the module is being used as a slave and a fault has caused the module to stop operating, pushing the Reset button resets the module while the rest of the link continues to function.

Note

The Reset pushbutton should not be used if the link is operating normally. Pressing Reset during normal operation causes the link to stop operating. The diagnostic program logic interprets this as an external link failure.

Serial Ports

The front of the module has two 20–pin, D connector, RS–422/485 serial ports. These ports are used for connection to the I/O Link.

Module Specifications

Physical dimensions: 6.3in x 9.19in (160mm x 233mm).

Module type: Series 90–70 PLC module, providing I/O Link commu-

Current requir ement from +5–volt bus 1.0 Amp without Optical Adapter.

LEDs: Module OK, I/O Link Active, I/O Link Configured Pushbutton: Reset I/O Link I/O Points:

In master mode In slave mode

Environmental:

Operating temperature Storage temperature Humidity V ibration and shock

Occupies single slot in Series 90–70 rack.

nications with up to 16 slave devices in master mode.

0.2 Amp per Optical Adapter.

1024 inputs, 1024 outputs maximum 64 inputs, 64 outputs maximum

0ºC to +60ºC (32ºF to +140ºF) –40ºC to +85ºC (–40ºF to +185ºF) 5% to 95% (non–condensing)

3.5mm displacement 5–9Hz 1 G 10–200Hz 15G for 11mS duration

RS–422/485 Serial Ports: 1.5 MHz transmission rate.

5GFK–0644A Chapter 1 Introduction

Cable Types for the I/O Link

The following cables and connectors can be used to complete the I/O Link between devices.

Item Catalog Number V endor Description

Cable A03B–0807–K801 GE Fanuc 5 meter length with connectors on both ends.

Cable A03B–0807–K802 GE Fanuc 10 meter length with connectors on both ends.

Connects between master and slave device, or between two slave devices.

Cable AMW 2076 OKI

Electric Cable

Connector A02B–0120–K301 GE Fanuc 20–pin connector with solder lug. Consists of

Connector PCR–E20FS Honda 20–pin female connector with solder lug.

PRC–V20L Honda Connector cover.

Cable A03B–0807–K803 GE Fanuc 1 meter length with connectors on both ends.

Optical A dapter

Cable A66L–6001–009 GE Fanuc Optical fiber cable for use with Optical

A138–154–B001 GE Fanuc Required for optical fiber cable.

” #L10R03 ” #L15R03 ” #L20R03 ” #L30R03 ” #L40R03 ” #L50R03 ” #L60R03 ” #L80R03 ” #L90R03 ” #L100R03

10–pair shielded cable without connectors, for making custom–length cable. Connects between master and slave device, or between two slave devices.

the two following parts.

Connects between master or slave and Optical A dapter. This cable can only be used with an Optical Adapter; do not use it for master/slave or slave/slave connections.

A dapter.

10m 15m 20m 30m 40m 50m 60m 80m 90m 100m

6 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

GFK-0644A

Cable Lengths on the I/O Link

The maximum distance between the master and the first slave, and between successive slaves, depends on whether electrical or optical cable is used.

The maximum length of an electrical cable link is 10 meters (33 feet).

The maximum length of an optical fiber cable is 100 meters (330 feet).

Electrical and optical cables can be used in the same I/O Link.

a45006

MASTER

OPTICAL ADAPTER

10m

SLA VE

OPTICAL FIBER CABLE

100m

OPTICAL ADAPTER

10m

SLA VE

7GFK–0644A Chapter 1 Introduction

Optical Adapter

An Optical Adapter (A138–154–B001) can be used to interface the electrical cable of the I/O Link with optical cable.

a45007

ELECTRICAL

CONNECTOR

JD1

OPTICAL

CONNECTOR

COP1

Use pairs of adapters in applications where:

distances of up to 100 meters (330 feet) are required between any two devices on the I/O Link.

the I/O Link runs between different cabinets, and it is not possible to connect the cabinets with a wire of 5.5mm2 or thicker.

excessive electromagnetic noise may affect the cable. This includes noise from machinery such as a welding machine, and noise–generating cable such as power cable that runs for long distances with the I/O Link cable.

8 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

GFK-0644A

Operation of the I/O Link

The I/O Link consists of a full duplex communications channel. Physically , the link consists of two twisted pairs of wire and a signal ground conductor. These wires are contained in a cable that has an over–all shield. Signals are of the differential type and a wire pair is used for each signal. Signal levels are compatible with specification EIA RS–422/RS–485. The signal baud rate is 1.5 Mbaud maximum.

Input and Output Data

The master on an I/O Link can send 1024 outputs and receive up to 1024 inputs from slave devices. A slave can send and receive either 32 or 64 inputs and outputs. For each link device, inputs and outputs have the same meaning:

Input Data is data received from the link.

Output Data is data sent to the link.

So the same set of data is considered output data by the device that sends it and input data by the device that receives it.

a45008

MASTER

INPUTS

OUTPUTS

For each Series 90–70 I/O Link Interface Module used as a master, %I and %Q references and data lengths for each slave are assigned within the application Program Block, using Logicmaster 90. Instructions for doing this are given in chapter 4. For other types of devices on the link, references and data lengths are assigned differently. For details on how a specific type of device handles its I/O Link data, you should refer to the User’s Manual for that device.

SLAVE

INPUTS

OUTPUTS

9GFK–0644A Chapter 1 Introduction

Data Sent by the Master

The master sends output data for all slave devices together. If a Series 90–70 PLC is the master on an I/O Link, it simply places the data to be sent into the %Q output references assigned to the I/O Link Interface Module.

Slaves receive the data in order of their positions on the link. Each slave in turn reads out its configured amount of data, and passes the remainder on to the next slave. To a slave, data received from the master is input data. If a Series 90–70 PLC is a slave, it obtains the data received from the master by reading the %I input references assigned to the I/O Link Interface Module.

a45009

MASTER

SLA VE

OUTPUTS 1

OUTPUTS

INPUTS

OUTPUTS

INPUTS

OUTPUTS

INPUTS

Data Returned by Slaves

The master continuously reads the output data from each slave. If a Series 90–70 PLC is a slave, it provides this data by placing it into the %Q references configured for the I/O Link Interface Module. If a Series 90–70 PLC is the master, it reads the data from the %I references assigned to the I/O Link Interface Module.

a45004

MASTER

SLA VE

INPUTS

SLA VE

MASTER

SLA VE

OUTPUTS

SLA VE

The master identifies each set of data it receives with respect to the slave’s position on the link. To the master, data received from slaves is input data.

10 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

GFK-0644A

Inputs and Outputs Hold L ast State

The inputs and outputs of the I/O Link Interface Module will hold their last states if one of the following events occurs:

the link is broken.

the master resets.

the slave resets.

the Series 90-70 PLC is put into STOP mode.

the Series 90-70 PLC is powered-down.

When the disruption is corrected, the module initializes all inputs and outputs to zero, then quickly resets them to their actual states.

11GFK–0644A Chapter 1 Introduction

Faults on the I/O Link

A. The Series 90–30 PLC, Series 90–70 PLC, and Power Mate CNC without a separate

encoder port handle faults as described below. The following information applies

only if there are no other types of devices on the link. If one of the following faults occurs, communications stop at the fault location. If

there are prior devices on the link, they are still able to transfer data with the master. If there are subsequent devices on the link, however, they cannot.

Power is removed from any device.

There is a fault in the I/O Link cable such as an open or shorted wire.

A module fault, software fault, or hardware fault occurs in the master or slave.

MASTER

DATA

SLA VE

POWER

REMOVED

HERE

SLA VE

a45010

SLA VE

If the master is a Series 90–70 PLC and one of the following faults occurs, communications continue on the rest of the link.

A slave has been set up for the wrong amount of data.

A Series 90–30 slave is in Stop mode.

The sequence of slaves on the link is not the same as the sequence expected by the master.

MASTER

SLAVE

PLACED IN STOP

MODE

SLAVE

a45011

SLAVE

DATA

B. If the link is connected to any other type of device, including a Power Mate CNC

that has a separate encoder port, a fault on any device causes the entire link to shut down as a safety precaution. If that happens, follow this procedure to restore link

operation.

1. Correct the condition that caused the fault.

2. With the master inactive on the link, clear system errors by power cycling each

CNC slave (turn power off, then on again).

3. Cycle power to each Series 90–30 I/O Link module, to clear the Logicmaster

fault table.

4. Reset the I/O link from the master .

12 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

GFK-0644A

Diagnostics

The application Program Block automatically provides the Series 90–70 PLC with diagnostic information about the I/O Link Interface Module, and about link operation if the module is operating as a master. The diagnostic information is placed into %P references assigned to that I/O Link Interface Module. Additional program logic can be created to read these %P references for monitoring the following:

Whether an invalid configuration has been provided during link initialization. The link will not operate until a valid configuration has been supplied.

Whether the I/O Link Module is operating properly .

Whether input data is being received.

Whether a link fault has occurred.

Chapter 4 e xplains how to add these diagnostics to an application program.

Link Control

In addition, the Program Block automatically reads other %P references in the Series 90–70 PLC to receive commands from the application program. These %P references can be used to instruct the I/O Link Interface Module to do the following:

Operate as a master or a slave.

Disable or enable the input and/or output update between the master and slave(s).

Start or restart link operation.

Reset or stop link operation.

Use of these program references is also explained in chapter 4.

13GFK–0644A Chapter 1 Introduction

Getting Star ted

To install and configure a Series 90–70 I/O Link Interface Module, follow these basic steps:

1. Install the module and complete the I/O Link

2. Add the I/O Link Module to the Series 90–70 PLC Configuration

3. Select and install an application Program Block from the diskette

Follow the instructions in chapter 2 to install the Series 90–70 I/O Link Module. After installing the other devices on the link (as instructed in their individual User’s Manuals), complete the I/O Link cabling. This is also described in chapter 2.

Follow the instructions in chapter 3 to complete the Logicmaster 90 configuration screen for an I/O Link Interface Module.

Chapter 4 explains how to choose the most appropriate Program Block from an application diskette, and how to add it to a Program Folder.

4. Complete the program logic for the I/O Link Module

This is also explained in chapter 4.

14 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

GFK-0644A

Chapter 2 Installation

section level 1 1

This chapter tells how to install an I/O Link Interface Module, and how to complete the I/O Link that joins the module to other devices.

Installing the I/O Link Interface Module in the R ack

The I/O Link Interface Module must not be located to the left of any board that generates interrupts (such as a PCM, Genius Bus Controller , Analog, GEnet LAN, or Ethernet module).

figure bi level 1 table_big level 1

Caution

Rack power MUST be OFF when installing or removing the I/O Link Module.

1. Grasp the module firmly with your hand and insert it into the card guide.

2. Align the module’s printed circuit board with the connector on the rack backplane and slide it towards the connector until it has started to seat.

3. Place one thumb on the left side of the top plastic flange and the other thumb on the left side of the bottom plastic flange. Push the board into the connector until the top and bottom latches click onto the rack rails.

4. Visually inspect the board to be sure it has seated properly.

Caution

Make sure no exposed wiring touches any conductive material. Such contact could damage the module, and other units to which it is connected.

GFK-0644A

5. A CPU module must be present in rack 0 slot 1 befor e applying power to the I/O Link Interface Module. Turn on power, and observe the LEDs.

LED Name LED Status Indication

Module OK On The I/O Link Interface Module has passed its powerup

diagnostics and the hardware is operating properly .

OFF The module has failed a diagnostic test, or a run–time failure

has been detected.

Link Active On The module is communicating with the I/O Link.

OFF A failure has occurred with the I/O Link, and

communications are not possible.

Link Cfg ON I/O Link configuration has occurred, and the module is ready

to communicate.

OFF The module has not been configured for link operation.

Note

If a CPU is powered up for the first time after being received from the factory (or for the first time after its configuration has been cleared or its battery has been removed), and there is an I/O Link Interface Module present in one of the racks of the PLC, a “Loss of Module” diagnostic is generated in the PLC.

To proceed, clear the fault and download a configuration to the CPU. See chapter 3 for configuration instructions. Once the CPU has been configured, the “Loss of Module” diagnostic will only occur if the module subsequently fails or is removed.

Removing the I/O Link Interface Module from the Rack

1. Remove power from the rack.

2. Squeeze the rack clips on the back of the cover to disengage the clips from the rack rail.

3. Pull the module firmly to remove it from the backplane connector.

4. Slide the board along the card guide and remove it from the rack. A void contact with neighboring boards and wiring.

16 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

GFK-0644A

Connecting the I/O Link Interface Module to Other Devices

Using the appropriate cable, connect the devices on the I/O Link. Notice that the cables are marked JD1A on one end and JD1B on the other.

Ports on the I/O Link Module

The functions of the ports on the I/O Link Interface Module depend on whether the module is used as a master or as a slave.

Series 90-70

I/O Link

Interface Module

(as master)

JD1A

JD1B

Series 90-70

I/O Link

Interface Module

(as slave)

JD1B

not used

JD1A

a45016

If the system also includes a Series 90–30 PLC, you will notice that the port functions for the Series 90–30 I/O Link Interface Module are the same as the port functions on the Series 90–70 I/O Link Interface Module when it is used as a slave.

I/O Link Module Used as a Master

If the module will be used as a master, connect the cable from the first slave to the upper port. The lower port is not used in master mode.

JD1A

JD1B

a45017

JD1B

not used

17GFK-0644A Chapter 2 Installation

I/O Link Module Used as a Slave

If the module will be used as a slave, connect the cable from the previous device (either the master or another slave) to the upper port. If the module is followed by another slave on the link, connect the cable from that device to the lower port.

a45018

JD1A

Order of the Devices on the Link

The devices on an I/O Link must be installed in the order expected by the master . If the Series 90–70 PLC is the master, be sure to connect the devices on a link in the order that agrees with the information provided to the application Program Block.

Serial Port Pin Assignments

JD1B

JD1A

JD1B

Pin # Signal Pin # Signal

1 SIN 11 0 volts 2 *SIN 12 0 volts 3 SOUT 13 0 volts 4 *SOUT 14 0 volts 5 15 0 volts 6 16 0 volts 7 17 8 18 +5 volts 9 +5 volts 19

10 20 +5 volts

The +5–volt output from each connector powers the fiber optic link modules for long distance applications. The +5–volt output is not used otherwise.

18 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

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Cable Diagram, No Optical Adapter

The following illustration shows connection details for electrical cable used between a master and slave or between two slave devices. This cable (A03B–0807–K801, A03B–0807–K802, or cable made using AMW 2076 and connectors A02B–0120–K301) does not include the +5–volt signal. Optical Adapter cable, which includes the +5 volt signal, must not be used to directly connect master and slave devices.

SIN

8SIN

SOUT

*SOUT

MASTER

01 02 03 04 05 06 07 08 09 10

SLA VE

JD1A

0V 0V 0V 0V

JD1A

SOUT

JD1B

(11) (12) (13) (14)

SIN

SIN*

SOUT

SOUT* 05 06 07 08 09 10

JD1B

(3)

SOUT

(4)

SOUT*

(1)

SIN

(2)

SIN* 0V 0V 0V 0V

11 12 13 14 15 16 17 18 19 20

(1)

SIN

(2)

SIN

(3) (4)

(11)

(12)

(13)

(14)

PCR–E20FS

11 12

13 14 15 16 17 18 19 20

SLA VE

a45019

0V 0V 0V 0V

The differential signals, SIN/*SIN, and SOUT/*SOUT must be connected using twisted pair wires.

Caution

The I/O Link cable’s shield must be connected to chassis ground in your system. Use the grounding cable (44A729227) provided.

19GFK-0644A Chapter 2 Installation

Optical Adapter Installation

The Optical Adapter is an optional component used to interface the electrical cable to optical cable.

An Optical Adapter must be installed in a sealed enclosure. Avoid contact with other electrical components or wiring, which could short the unit. Use the adapter’s casing screws to make earth ground connection. The electrical potential of the earth ground used for the adapter must be the same as that of the I/O Link to which it is connected.

Cable Connections

Connection between two optical adapters is made using optical fiber cable A66L–6001–009. Lengths of 10 to 100 meters are available. Connect the optical fiber cable to COP1 on the adapter unit.

a45014

UNIT

JD1B

UNIT

JD1A

ELECTRICAL

CABLE

OPTICAL

I/O LINK

ADAPTOR

OPTICAL

JD1 COP1 COP1 JD1

CABLE

OPTICAL

I/O LINK

ADAPTOR

ELECTRICAL

CABLE

Connection between a master or slave device and an Optical Adapter is made using electrical cable A03B–0807–K803, which is a one–meter cable with connectors on both ends. Connect this cable to JD1 on the adapter. A connection diagram is shown below.

Cable Diagram, Electrical Cable to Optical Adapter

Cable A03B–0807–K803 provides the +5–volt signal required by the Optical Adapter. Do not use this cable to directly connect master or slave devices; use it only with an Optical Adapter .

a45020

UNIT SIDE

JD1A, JD1B

(01)

SIN

SOUT

04 05 06 07 08

+5V

09 10

16 17

+5V

18 19

+5V

SIN

*SIN

SOUT

*SOUT

+%V

+5V +5V

0V 0V 0V 0V 0V 0V

(02) (03) (04) (09) (18) (20)

(11) (12) (13) (14) (15) (16)

ADAPTER SIDE

JD1

SOUT

(03)

SOUT

(04)

SIN

(01)

SIN*

(02)

+5V

(09)

+5V

(18)

+5V

(20)

(11)

(12)

(13)

(14)

(15)

(16)

Note

The +5–volt output on the Series 90–70 I/O Link Module is fused with a 0.5 Amp fuse. The fuse is not field replaceable.

20 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

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Chapter 3 Logicmaster 90-70 Configuration

section level 1 1

This chapter explains the Logicmaster 90–70 software configuration steps related to a Series 90–70 I/O Link Interface Module. For the I/O Link Module, this configuration only

designates the location of the module; it does not assign I/O refer ences. After the module itself has been “installed” using Logicmaster 90, you will set up and initialize the I/O Link as explained in chapter 4.

Configuration Steps

1. In the LM90 configuration software, select I/O Configuration.

2. Display the configuration screen for the rack where the module will be located. The Next Page and Prev Page keys are used to move between rack configuration screens.

3. In the correct rack display, move the reverse video cursor to the module’s intended slot. (Use the left and right cursor keys to move the cursor).

figure bi level 1 table_big level 1

Note

DO NOT locate an I/O Link Interface Module to the left of any board that generates interrupts (such as a PCM, Genius Bus Controller , Analog, GEnet LAN, or Ethernet module).

GFK-0644A

4. If you are using version 4 of Logicmaster, press F1 (vme) to display the catalog list shown below. Select Foreign VME from the list.

If you are using version 3 of Logicmaster instead press F2 (vme) to display the catalog list. From the list, select Foreign VME (no interrupt).

5. No further configuration is required; press Rack (Shift–F1) or the Escape key to return to the rack display.

22 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

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Chapter 4 Programming Guide

section level 1 1

This chapter e xplains how to incorporate logic for one to four I/O Link Interface Modules in an application program for the Series 90–70 PLC. Programming instructions for other devices on the link are not included.

Overview

The Program Blocks on the diskettes provided with the I/O Link Interface Module will transfer input and output data between the Series 90–70 PLC and up to four I/O Link Interface Modules. The Program Blocks also monitor diagnostics from each I/O Link Interface Module in the PLC, and provide a mechanism for controlling link operation from the application program.

One Program Block is selected for the application, and added to the application program using the Librarian function of Logicmaster 90–70.

figure bi level 1 table_big level 1

Logic must be added to the application program to call the Program Block, which will execute once each time it is called. Normally, it is called once per PLC sweep.

The Program Block utilizes a range of %P references, set aside in PLC memory, to exchange data with the Series 90–70 PLC. The application program interfaces with the Program Block by reading and writing the same %P references. The Program Block also makes use of a small group of %G references. These do not require any application program interaction. However, it is important to be sure that these %G references are not used for any other purpose.

GFK-0644A

Selecting a Program Block

There are three Program Blocks on a diskette. Select the Program Block that provides the level of functionality and performance required for the application.

Program Block

Identifier

LINK73X 1 512 points 731/732, 771/772, 781/782 LINK77X 2 2048 points 771/772, 781/782 LINK78X 4 4096 points 781/782

The LINK73X Program Block provides the fastest update speed and has the lowest memory requirements, but is limited to a single I/O Link Interface Module per 90–70 system and 512 I/O points. LINK77X provides up to two I/O Link Interface Modules per 90–70 PLC and 2048 I/O points, but it is slightly slower and requires more memory . LINK78X accommodates up to four I/O Link Interface Modules per PLC and provides up to 4096 I/O points. Its update rate is slower than the other two Program Blocks, and it uses more memory.

For the 731/732 CPU, the LINK73X P rogram Block is required. F or the 771/772 CPU, either LINK73X or LINK77X can be used. For the 781/782 CPU, any of the three Program Blocks can be used. Remember that the smaller Program Blocks will give better performance.

Number of I/O

Link Modules

Maximum Number

of References

Compatible CPUs

Adding the Program Block Logic to an Application Program

To add a Program Block to an application program, follow these steps:

1. Copy the selected P rogram Block library file from the diskette to the Logicmaster 90–70 library directory (such as: c:\lm90\p70\p70_lib).

2. Using the Librarian function (available with Logicmaster 90–70 version 3.0 or later), import the Program Block into the working folder.

3. If the application program will use nicknames for the Program Block %P references (see page 27), include the nicknames in the Variable Declaration Table. The nicknames are provided as three .SDE files in the program folder on the application software diskette: LINK73SX.SDE, LINK77SX.SDE, and LINK78SX.SDE. To include the appropriate file, go to the Variable Declarations in the working folder, select “include”, and enter the path and filename (such as: c:\link\link73sx.sde).

4. Complete the application program logic as described on the following pages.

24 Series 90t-70 I/O Link Interface Module User’s Manual – February 1993

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Calling the Program Block

To call the LINKxxX block, place a Call instruction as close as possible to the start of the main program. To assure consistent mapping of link I/O data, do not use permissive logic to the call. Include at least one call to the LINKxxX block each program sweep, to assure that the link status is routinely updated and the link retry mechanism is enabled. This is discussed in more detail later in the chapter.

Example Call Instruction

In this example, the Call instruction calls Program Block LINK73X.

[ INTERRUPTS ] [ START OF PROGRAM BLOCK ]

CALL LINK73X

Using Multiple Calls to the Program Block

For most applications, the main program will include only one Call instruction to the LINKxxX Program Block. However, it is possible to use multiple calls in the program. For example, a call might be used at a particular place in the program to update inputs, outputs, or both. In this way, the Program Block call would serve as a “Do I/O” instruction.

In applications with long communications windows or in Constant Sweep Time mode, a call to LINKxxX might be used at the beginning of the program to update only inputs, with another call at the end to update only outputs.

When using multiple calls to the LINKxxX Program Block, all additional calls after the first should use the set status of the “Link Active” status bit as a permissive to their ex ecution.

25GFK–0644 Chapter 4 Programming Guide

Number of I/O Link Modules

(1–4)

Program (%P) References for the I/O Link Program Blocks

The I/O Link Program Blocks use the program registers (%P) shown below. The references for devices 1 to 15 are used only if the I/O Link Module is a master, and it has more than one slave.

Information in Reference Program Reference Nickname

%P0001 numlink

1st Module 2nd Module 3rd Module 4th Module

Rack location # (0–7) Slot location # (2–9)

Status word (see page 32 Control word (see page 30 Device 0 (or I/O Link Module used as slave), slave data length (32 or 64)