Rockwell Automation 1747-PTxx User Manual

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ALLEN–BRADLEY

The Getting Started Guide for HHT

(Catalog Number 1747–PTA1E & 1747–PT1)

User Manual

Important User Information

Solid state equipment has operational characteristics differing from those of electromechanical equipment. “Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls” (Publication SGI-1.1) describes some important differences between solid state equipment and hard–wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will the Allen-Bradley Company be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, the Allen-Bradley Company cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Allen-Bradley Company with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of the Allen-Bradley Company is prohibited.

Throughout this manual we use notes to make you aware of safety considerations.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property

damage, or economic loss.

Attentions help you:

• identify a hazard

• avoid the hazard

• recognize the consequences

Important: Identifies information that is especially important for successful

application and understanding of the product.

PLC, PLC 2, PLC 3, and PLC 5 are registered trademarks of Allen-Bradley Company, Inc. SLC, SLC 500, PanelView, RediPANEL, and Dataliner are trademarks of Allen-Bradley Company, Inc. IBM is a registered trademark of International Business Machines, Incorporated.

Preface

Read this preface to familiarize yourself with the rest of the manual. This preface covers the following topics:

• who should use this manual

• the purpose of this manual

• how to use this manual

• conventions used in this manual

• Allen–Bradley support

Who Should Use this Manual

Purpose of this Manual

Use this manual if you are responsible for designing, installing, programming, or troubleshooting control systems that use Allen–Bradley small logic controllers.

You should have a basic understanding of SLC 500 products. You should understand programmable controllers and be able to interpret the ladder logic instructions required to control your application. If you do not, contact your local Allen–Bradley representative for information on available training courses before using this product.

This manual is a learning and reference guide for the HHT. It is an introductory document, designed to allow you to begin programming in the shortest time possible. It does this by focusing on a simple controller and a simple program. Basic concepts are presented, but only with enough detail to get you started and let you know that there is more to be learned.

P–1

Preface

Contents of this Manual

Chapter: Title: Purpose:

Shows you how to set up a controller, install your

1 Setting Up Your Equipment

Memory Pak, Battery, and communication cable,

and connect your HHT to the controller. 2 Control Basics 3 Creating a Program Shows you how to create a program. 4 Online Operations

Appendix

AppendixCIdentifying HHT Function Keys

Glossary Glossary Provides definitions of terms used in this guide.

Additional Ladder Program

Exercises

Troubleshooting Errors

& Instruction Mnemonics

Presents basic information you will need to know

before you can begin programming with the HHT.

Shows you how to download (restore) your program

to the controller, monitor, and test the program.

Introduces you to branching of instructions and the

timer instruction.

Provides a listing of error messages that you may

encounter while working through the guide. Also,

offers possible solutions for these errors.

Provides a listing of HHT function keys and their

meaning. Also provided is a list of instruction

mnemonics.

How to Use this Manual

Common Techniques Used in this Manual

Allen–Bradley Support

To use this manual effectively:

• Work through the chapters in sequential order, completing each one

before moving on to the next.

• Perform the exercises in appendix A to apply what you have learned in

the chapters.

• Consult appendix B to correct and identify any errors you encounter while

working through this manual.

• Refer to the glossary for definitions of unfamiliar terms.

• Use the index to locate further information on topics.

The following conventions are used throughout this manual:

• Bulleted lists such as this one provide information, not procedural steps.

• Numbered lists provide sequential steps or hierarchical information.

• Italic type is used for emphasis.

• Text in this

font

indicates words or phrases you should type.

• Key names match the names shown and appear in bold, capital letters

within brackets (for example,

Allen–Bradley offers support services worldwide, with 78 Sales Support offices, 494 Authorized Distributors and 242 authorized Systems Integrators located throughout the United States, plus Allen–Bradley representatives in every major country in the world.

[ENTER]).

Local Product Support

Contact your local Allen–Bradley representative for:

• Sales and Order Support

• Product Technical Training

• Warranty Support

• Support Service Agreements

Technical Product Assistance

If you need to contact Allen–Bradley for technical assistance, please review the information in appendix B, Troubleshooting Errors, first. Then call your local Allen–Bradley representative.

Your Questions or Comments on this Manual

If you have any suggestions for how this manual could be made more useful to you, please send us your ideas on the enclosed reply card.

If you find a problem with this manual, please notify us of it on the enclosed Publication Problem Report.

P–3

able of Contents

The Getting Started Guide for HHT

Setting Up Your Equipment

Control Basics

Chapter 1

Controller Styles 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting

Up a Demo Unit

Setting

Up a Field–Wired Controller Installing the Memory Pak, Battery HHT

Features Powerup

HHT

HHT Display Format 1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The

Keyboard

Function Keys (F1, F2, F3, F4, F5)

Data Entry Keys (A 7, B 8, C 9...) 1–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Auto

Shift

Cursor Keys 1–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ZOOM and RUNG Keys 1–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

, and Communication Cable

Chapter 2

SLC

500 File Concepts

Program 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Program Data

How External I/O Devices Communicate with the Processor 2–3. . . . . . . . . . . . .

Addressing

External I/O Addressing Formats 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

HHT Display of Instructions/Addresses 2–5. . . . . . . . . . . . . . . . . . . . . . . . . .

Ladder

True/False Logical

Processor Operating Cycle 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Files

External I/O

Logic Concepts

Status

Continuity

1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–4. . . . . . . . . . .

1–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–9. . . . . . . . . . . . . . . . . . . . . . . . .

1–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Creating a Program

Chapter 3

Configuration

Controller Styles 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Catalog Numbers 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Arbitrary

Creating

Clearing the Memory of the HHT 3–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Naming

Naming Your Program 3–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring the Processor 3–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring Y Monitoring Y

Programming

Entering

of SLC 500 Controllers

Controller Used in this Guide

a Program

the Program and Configuring the Controller

our I/O

our Data File

a Simple Ladder Rung

a Rung

3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4. . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–6. . . . . . . . . . . . . . . . .

3–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–11. . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

able of Contents

The Getting Started Guide for HHT

Online Operations

Additional Ladder Program Exercises

Entering Entering

Saving Your Program 3–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

an “Examine if Closed” Instruction an “Output Energize” Instruction

Chapter 4

Downloading Your Program 4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Going

Online

Downloading Your Program 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changing Monitoring

Testing Y Monitoring

Program Mode to Run Mode

the Program in Run Mode

our Downloaded Program

Data Files

Appendix A

Entering

Input and Output Branches Creating Adding Inserting Adding Inserting Saving Downloading Testing

Entering

the Program

an Input Branch

an Instruction

an Output Branch

an Instruction

the Program

the Ladder Program

a T

imer Instruction A–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

the Program

3–12. . . . . . . . . . . . . . . . . . . . .

3–13. . . . . . . . . . . . . . . . . . . . . . .

4–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–3. . . . . . . . . . . . . . . . . . . . . . . . . .

4–4. . . . . . . . . . . . . . . . . . . . . . . . . . .

4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting Errors

Identifying HHT Function Keys & Instruction Mnemonics

Glossary

Appendix B

HHT Error Messages B–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

System LED Status B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Processor Error Codes B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix C

HHT

Function Keys and Their Meaning

Instruction Mnemonics C–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C–1. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Getting Started Guide

for HHT

Chapter

Chapter 2

A–B

Setting Up Your Equipment

This chapter briefly describes SLC 500 controller styles, then shows you how to set up your equipment in preparation for the exercises in later chapters. Topics include:

• Controller Styles

• Setting up a Demo Unit

• Setting up a Field–Wired Controller

• Installing the Memory Pak, Battery, and Communication Cable

• HHT Features

• HHT Powerup

• HHT Display Format

• The Keyboard

1–1

Chapter 1

Setting Up Your Equipment

Controller Styles

The SLC 500 comes in two different styles: modular and fixed. These styles are shown below. The modular controller consists of a rack, power supply, processor (CPU), and Input/Output (I/O) modules. The fixed controller consists of a power supply, processor (CPU), and a fixed number of I/O contained in a single unit. You can add an expansion rack to the fixed controller.

Output Module

SLC 500 Modular Controller

Power Supply

Output Terminals

Processor

Input Modules

Slot 0 1 2 3

Power Supply

Processor (CPU)

Input Terminals

Slot 0

SLC 500 Fixed Controller

Further information on hardware is found in the Installation and Operation Manuals, Publication 1747–800 (fixed controllers) and 1747–804 (modular controllers).

1–2

Getting Started Guide

for HHT

Chapter 1

Setting Up Your Equipment

Setting Up a Demo Unit

SLC 500 Modular Controller

SLC 500 demo units are available with either a fixed controller or modular controller. This guide assumes you are using a modular controller demo unit for all the programming exercises. If you use a fixed controller demo unit, you will need to use different configuration information and I/O addresses in the exercises. This is explained later.

The figure below shows an SLC 500 modular controller demo unit. It is completely wired, with 12 external inputs (6 push buttons and 6 selector switches) and 8 external outputs (pilot lights).

Note the On/Off Power Switch and the Power Supply Receptacle on the demo. Make certain that the power switch is Off, then insert one end of the power cord into the power supply receptacle and the other end into an electrical socket.

Input/Output Panel

Power Supply Receptacle

On/Off Power Switch

Pilot Light

102

F F

Combination Pilot Light/Pushbuttons

Selector Switches

1–3

Chapter 1

Setting Up Your Equipment

Setting Up a Field–Wired Controller

Installing the Memory Pak, Battery, and Communication Cable

The details of installing and wiring the controller and external input/output devices are beyond the scope of this guide.

If you are using a field–wired fixed or modular controller, refer to the Installation and Operation Manuals, Publication 1747–800 (fixed controllers) and 1747–804 (modular controllers), for information on installation and wiring of the controller and external input/output devices.

We recommend that your controller have two external input circuits and two external output circuits to complete the exercises in this guide.

The HHT (with communication cable), the memory pak, and the battery are supplied separately. Install the memory pak, battery, and communication cable as follows:

1. Install the memory pak first. The English version is catalog number

1747–PTA1E. Important: The memory pak contains CMOS devices. Wear a

grounding strap and use proper grounding procedures to guard against damage to the memory pak from electrostatic discharge.

A. To install the memory pak, remove the cover from the back of the

HHT.

Backside

Slide cover to the left. Lift of

of HHT

f cover

1–4

Getting Started Guide

for HHT

Chapter 1

Setting Up Your Equipment

B. Insert the memory pak in its compartment as indicated in the following

figure.

After the memory pak is in the compartment, press down on handle to secure connector in socket.

. .

Backside of HHT

1–5

Chapter 1

Setting Up Your Equipment

2. Install the battery, catalog number 1747–BA. The battery compartment is

next to the memory pak compartment.

ATTENTION: If you do not install a battery, the letter B appears flashing on the prompt line of the HHT display to let you

know that battery power is low; in addition, each time you power up, the self–test diagnostic will be interrupted, and the statement

BATTERY

TEST FAILED

will appear.

To prevent this from happening, leave the “battery low defeat jumper” inserted in the battery socket. The HHT will be functional, but your user program will be cleared form memory when you de–energize the HHT. If you do not download the user program to the processor before you de–energize the HHT, your program will be lost.

A. Remove the jumper from the battery socket, then plug the battery

connector into the socket (red wire up). Secure the battery between the clips.

Battery Compartment

Plug battery connector into socket (red wire up).

Secure battery between clips.

B. Replace the cover.

. .

Backside of HHT

1–6

Getting Started Guide

for HHT

Chapter 1

Setting Up Your Equipment

3. Locate the Communications Port of the controller. The figure below

shows where it is located on modular and fixed controllers.

Processor Module (Modular Controller)

(cover open)

(Communication Port)

SLC 500 Fixed Controller

Connectors are keyed. Connect one end of the 1747–C10 communication cable to the top of the HHT. The other connector plugs into the communication port on the front of the fixed I/O controller, or into the communication port on the front of the CPU module of modular controllers.

1747–C10 Cable

SLC Controller (Modular)

HHT

If you are using a 1747–NP1 Wall–Mount power supply or a 1747–NP2 Global Desk Top power supply, plug the communication cable connector into the socket provided.

1–7

Chapter 1

Setting Up Your Equipment

HHT Features

Display Area

Use the Hand–Held Terminal to configure the SLC 500 controller, enter/modify a user program, download/upload programs, monitor controller operation, test, and troubleshoot. The HHT has its own memory to store a program.

You can use the HHT stand alone (for remote programming development with 1747–NP1 or NP2 power supply), point–to–point (one HHT to one controller), or on a DH–485 network (communicate with up to 31 nodes over 4,000 feet). When equipped with a battery (1747–BA), the HHT will retain a user program in memory for storage and later use.

The HHT is menu–driven. The display area accommodates 8 lines x 40 characters. You can display five rungs of a user program. When monitoring the program in the RUN mode, instructions in a ladder diagram are intensified to indicate “true” status.

SLC 500 PROGRAMMING SOFTWARE Rel. 2.03

PRESS A FUNCTION KEY

SELFTEST TERM PROGMAINT UTILITY

F1 F2 F3 F4 F5

1747 – PTA1E

OFL

1–8

Calculator–style, color–coded keyboard

Keys operate with motion and tactile response.

F1 F2

ACC/POS

PRE/LEN

#0–

F3 F4 F5

SPACE

SHIFT

ESC

ZOOMRUNG

Enter

Getting Started Guide

for HHT

Chapter 1

Setting Up Your Equipment

HHT Powerup

HHT Display Format

After you install the memory pak and battery, and plug in the cable, you can test operation of the HHT by powering up the controller (or plugging in the Wall–Mount or Global Desk Top power supply).

When the HHT is energized, it will go through a series of diagnostic tests. Then the following display is shown.

SLC 500 PROGRAMMING SOFTWARE Rel. 2.03

PRESS A FUNCTION KEY SELFTEST TERM PROGMAINT

F1 F2 F3 F4 F5

1747 – PTA1E

OFL

UTILITY

The HHT display format consists of the following:

• Display area

• Prompt/Data Entry/Error Message area

• Menu tree functions

The figure below indicates what appears in these areas. (To access this

[F3]

screen, press

– PROGMAINT

Prompt/Entry/Error Area

Menu tree functions are directly accessible.

Menu function keys are selected

[F1]

with

The Keyboard

[F5] keys.

Display Area

File Name: 101 Prog Name: 1492 File Name Type Size(Instr) 0 System * 1 Reserved * 2 101 Ladder *

OFL

CHG_NAM CRT_FIL EDT_FIL DEL_FIL MEM_MAP >

F1 F2 F3 F4 F5

When the > symbol is present, pressing [ENTER] will toggle additional menu functions.

Indicates that the HHT is offline.

This section is intended only as a brief preview of keyboard operation. Beginning in chapter 3, you will become familiar with the keyboard as you are guided through various programming procedures.

Menu Function Keys (F1, F2, F3, F4, F5)

The top row of purple keys, F1 through F5, are menu function keys. They select the menu functions at the bottom of the screen. Note that when the > symbol is present, the any) at a particular menu level. The previous menu level.

[ENTER] key will toggle additional menu functions (if

[ESC] key exits the display to the

1–9

Chapter 1

Setting Up Your Equipment

Data Entry Keys (

9...)

These blue keys include numbers, letters, and symbols used for addresses, password, file numbers, and other data. The data you enter always appears on the prompt/data entry/error message area of the display.

In general, you obtain the upper character of a key by pressing the

[SHIFT]

key first. You do not have to hold it and press next key. Just press and release

If you make an error while entering data, press

[SHIFT] and then press the next key.

[ESC]

and re–enter the data,

or use cursor keys and the space key. To complete a data entry, press

[ENTER]. You can also use the [ESC] key to exit the data entry and return to

the next higher (previous) menu level.

Auto Shift

When you enter an instruction address, the HHT automatically goes to SHIFT mode. This mode is indicated by a small arrow in the bottom right hand corner of the display.

ZOOM on XIC NAME: EXAMINE IF CLOSED BIT ADDR:

ENTER BIT ADDR:

F1 F2 F3 F4 F5

] [

2.0.0.0.*

Indicates that the HHT is in SHIFT mode (e.g., to enter the letter “I” you do not have to first select SHIFT).

1–10

Cursor Keys

,,,

Use these four green, arrow keys to:

• Correct data entry errors (either type over or use space key).

• Move the cursor left, right, up, and down in a ladder program. Rungs not

shown in the HHT display will automatically scroll into view as you cursor down (or up) in the program.

• Scroll through controller and I/O configuration selections.

• Scroll through program file directories.

• Scroll through the elements and bits of individual data files.

ZOOM and RUNG Keys

The [ZOOM] key brings up a display that shows the parameters of an instruction (helpful with timers, counters, sequencers, etc.; also helpful during editing).

[RUNG] key moves the cursor to a particular rung. Using the [RUNG] key

The saves time when you have a long ladder diagram. When you press you are prompted for the rung number that you want to edit or monitor. You enter the rung number and press

[ENTER], then the cursor moves to the

selected rung and the rung appears at the top of the screen.

[RUNG],

Getting Started Guide

for HHT

Chapter

A–B

Control Basics

This chapter introduces you to basic concepts essential for understanding how the SLC 500 controller operates. It covers:

• SLC 500 file concepts

• How external I/O devices communicate with the processor

• Addressing external I/O

• External I/O addressing formats

• Ladder logic concepts

SLC 500 File Concepts

The CPU, or processor, provides control through the use of a program you create. This program contains files that break down into more manageable sections. These sections are:

• Program Files — provide storage and control of the main program and

subroutines.

• Data Files — contain the status of inputs, outputs, the processor, timers,

counters, and so on.

Notes on terminology: The term program used in Hand–Held Terminal (HHT) displays and documentation is equivalent to the term processor file used in APS software displays and documentation. Both terms mean the collective program files and data files created under a particular program or processor file name.

Program

The HHT and each CPU can hold one program at a time. The program is made up of program files (up to 256 per controller) and data files (up to 256 per controller).

Program

Program Files

Data Files

A program is created in the offline mode using your HHT. It is then downloaded to the processor for online operation.

2–1

Chapter 2

Control Basics

Program Files

Program files contain controller information, the main control program, and any subroutine programs. The first three program files are required for each program. These are:

• File

This file stores the controller configuration and other system information.

• File

This file is reserved for internal controller use.

• File

This file stores the main control program.

• Files

Most of your work with program files will be in file 2, the main program file. This file contains your ladder logic program that you create to control your application.

3 – 255

These files are optional and used for subroutine programs.

Data Files

Data files contain the data associated with the program files. Each program can contain up to 256 data files. These files are organized by the type of data they contain. Each piece of data in each of these files has an address associated with it that identifies it for use in the program file. For example, an input point has an address that represents its location in the input data file. Likewise, a timer in the timer data file has an address associated with it that allows you to represent it in the program file.

The first 9 data files (0 – 8) have default types. You designate the remainder of the files (9 – 255) . The default types are:

• File 0 – Output Data

This file stores the state of the output terminals for the controller.

• File

1 – Input Data

This file stores the status of the input terminals for the controller.

• File

2 – Status Data

This file stores controller operation information.

• Files

• File

• Files

3 – 7

These files are pre–defined as Bit, Timers, Counters, Control, and Integer data storage, respectively.

This file is reserved for internal use.

9 – 255

These files are user–defined as Bit, Timer, Counters, Control, and Integer data storage.

2–2

Most of your work with data files will be in files 0 and 1, the output and input files. Refer to appendix A for an example of the Timer data file.

Getting Started Guide

for HHT

Chapter 2

Control Basics

How External I/O Devices Communicate with the Processor

Input Module in slot 1

Pushbutton 0 is wired to terminal 0. Pressing pushbutton 0 will cause the corresponding status bit in the input data file to go from 0 to 1.

The figure below applies to a modular controller demo unit having an input module in slot 1 and an output module in slot 3. See page 1–2 for a diagram of the slot location. To simplify the illustration, only pushbutton 0 and pilot light 0 of the external I/O are shown.

Each of the external input circuits is represented by a status bit in the input data file of the program. Each of the external output circuits is represented by a status bit in the output data file of the program. During controller operation, the processor applies the input data to the program, solves the program based on the instruction you enter, and energizes and de–energizes external outputs.

SLC 5/01 CPU

INPUT

IN 0 IN 1 IN 2 IN 3

Input Data File

address data

I:1 0000

Status bit 0 corresponds to terminal 0 of the input module in slot 1.

Closing an external input circuit changes the corresponding status bit from 0 to 1. Opening an external input circuit changes the corresponding status bit from 1 to 0.

Output Module in slot 3

Pilot light 0 is wired to terminal 0. The pilot light will be energized when the processor has completed evaluation of the program and transfers the ON/OFF status to the outputs.

When an output data file status bit has been solved as a 1, the corresponding external output circuit will be energized (ON).

When an output data file status bit has been solved as a 0, the corresponding external output circuit is de–energized (OFF).

OUTPUT

OUT OUT 1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 OUT 7

Output Data File

address data

O:3 0000 0000

Status bit 0 corresponds to terminal 0 of the output module in slot 3.

2–3

Chapter 2

Control Basics

Addressing External I/O

As pointed out in the last section, external inputs and outputs are linked to the input data file and output data file of the program. Each status bit in these files has an address. You specify the appropriate address when you enter an instruction in your ladder program.

For our purposes, input addresses have the form I:e/b where

= Input data file

I :

= Element or slot delimiter = Slot number of the input module

= Bit or terminal delimiter

/ b

= Terminal number used with input device

Similarly, output addresses have the form

O:e/b

where

= Output data file

= Element or slot delimiter = Slot number of the output module

e /

= Bit or terminal delimiter = Terminal number used with output device

Examples:

I:1/0

= Input, slot 1, terminal 0

I:2/0 = Input, slot 2, terminal 0 O:3/0 = Output, slot 3, terminal 0 O:3/7 = Output, slot 3, terminal 7 O:0/7 = Output, slot 0, terminal 7 (fixed controllers only because of slot 0) I:0/4 = Input, slot 0, terminal 4 (fixed controllers only because of slot 0)

Eventually, you will be addressing other data files, such as Status, Bit, Timer, Counter, Integer, and Control. Addressing of these files is discussed in the HHT User Manual.

2–4

Getting Started Guide

for HHT

Chapter 2

Control Basics

External I/O Addressing Formats

There are three ways in which an external I/O address appears in this guide:

• The five keyboard entries you make to enter the address in the HHT:

Delimiter Delimiter

O:2/7

Output Data File Slot 2 Terminal 7

• The full address, as it appears in the HHT displays:

Word 0Data File 0

O0:2.0/7

Output Data File Slot 2 Terminal 7

• The convention we use to show the address in the ladder diagrams:

Word 0Slot 2Output Data File

Your programming device displays the full address. For example, when you assign the address O:3/0, the programming device will show it as O0:3.0/0 (output file, file 0, slot 3, word 0, terminal 0).

O:2.0

( )

Terminal 7

HHT Display of Instructions/Addresses

The HHT displays I/O addresses as shown below.

When you locate the cursor on an instruction (as shown below), the HHT displays the instruction address in the upper left corner of the display.

NO FORCEOTE:O0:3.0/0

] [

<END>

INS_RNG MOD_RNG SEARCH DEL_RNG UND_RNG

F1 F2 F3 F4 F5

These numbers provide you with the following ladder program information:

2.0.0.0.2

( )

OFL

file number rung number nest level branch level

instruction number (An asterisk (*) means the cursor is not on an instruction.)

2–5

Chapter 2

Control Basics

Ladder Logic Concepts

As we mentioned earlier, the program files you create contain the program used for your controlling application. The programs are written in a programming language called Ladder Logic. This name is derived from its ladder–like appearance.

A ladder logic program consists of a number of rungs, on which you place instructions. Instructions each have a data address associated with them and based on the status of these instructions the rung is solved.

The figure below shows a simple 1–rung ladder program. The rung includes two input instructions and an output instruction. Note, in the example below each instruction has a name (Examine if Closed), a mnemonic (XIC), and an address (I:1/0).

Input Instructions Output Instruction

XIC

I:1.0

] [

XIC = Examine if Closed XIO = Examine if Open

OTE = Output Energize

A simple rung, using bit instructions.

XIO OTE

I:1.0

]/[

O:3.0

Address I:1/0 Address I:1/1 Address O:3/0

( )

True/False Status

The data file bits that these instructions are addressed to will be either a logic 0 (OFF) or a logic 1 (ON). This determines whether the instruction is regarded as “true” or “false”:

The status of the instruction is

If the data file

bit is

Logic 0 False True False Logic 1 True False True

XIC

Examine if Closed

] [

XIO

Examine if Open

]/[

OTE

Output Energize

( )

2–6

Getting Started Guide

for HHT

Chapter 2

Control Basics

Logical Continuity

During controller operation, the processor evaluates each rung, changing the status of instructions according to the logical continuity of rungs. More specifically, input instructions set up the conditions under which the processor will make an output instruction true or false. These conditions are:

• When the processor finds a continuous path of true input instructions in a

rung, the OTE output instruction will become (or remain) true. We then say that “rung conditions are true.”

• When the processor does not find a continuous path of true input

instructions in a rung, the OTE output instruction will become (or remain) false. We then say that “rung conditions are false.”

The figure below indicates the data file conditions under which the rung is true:

Input Instructions Output Instruction

XIC

I:1.0

] [

Input Data File

address data

I:1 0001

Status bit I:1/1 is a logic 0, making the XIO instruction true.

Status bit I:1/0 is a logic 1, making the XIC instruction true.

In the above example, if the input data file was 0000, then the rung would be false and the output data file would read as 0000 0000.

XIO OTE

I:1.0

]/[

O:3.0

address data

O:3 0000 0001

The processor changes status bit O:3/0 to a logic 1, because a continuous path of true input instructions exist in the rung.

( )

Output Data File

2–7

Chapter 2

Control Basics

Processor Operating Cycle

The diagram below indicates the events that occur during the processor operating cycle. This sequence is repeated many times each second.

Event Description

Input

Scan

Program Scan

Output Scan

Communications

Housekeeping

activated

address data O:3 0000 0001

I:1.0

] [

Output Data File

address data

I:1 0001

I:1.0

]/[

Input Data File

O:3.0

( )

Illuminated

Processor internal housekeeping takes place.

The status of external input circuits is read. The input data file is updated with this information.

The ladder program is executed. The input data file is evaluated, the ladder rung is solved, and the output data file is updated.

The output data file information is transferred to the external output circuit, thus energizing or de–energizing it.

Communications with the HHT and other network devices takes place.

2–8

Getting Started Guide

for HHT

Chapter

A–B

Creating a Program

In this chapter you create a program. The tasks you will perform:

• For modular controllers: Make a record of the processor module catalog

number, the rack catalog number(s), the I/O module catalog numbers, and the slot locations of I/O modules.

For fixed controllers: Make a record of the controller catalog number (and I/O module catalog numbers and slot locations if you are using the 1746–A2 expansion rack).

• Use the HHT to create a program.

• Clear the HHT memory.

• Name the program “1000.”

• Enter the controller configuration.

• Enter a 1–rung ladder program.

• Save the program.

Configuration of SLC 500 Controllers

To make the best use of this guide, you should have access to an SLC 500 Demonstration Unit, which includes completely wired external inputs and outputs. For the exercises in this guide, we assume that you are using a Demo unit using a modular controller with the components listed on page 3–4.

3–1

Chapter 3

Creating a Program

Controller Styles

As previously mentioned, SLC 500 controllers are available in two styles — the fixed controller and the modular controller. Examples are shown in the figure below.

Processor & Power Supply

Expansion Rack

Power Supply

SLC 500 Modular ControllerSLC 500 Fixed Controller

Processor

7–slot rack

12Slot 0

Slot 0 1 2 3 4 5 6

The fixed controller combines a power supply, processor (CPU), and a fixed number of I/O points in a single unit. You have the option of adding a 2–slot expansion rack if you want to add I/O points.

The modular controller consists of a power supply, 1–3 I/O racks, a processor module that you insert in slot 0 of the first rack, and various I/O modules that you insert in the remaining slots of the racks.

Slot Numbers: Note that slot numbers are indicated in the figure above. In fixed controllers, slot 0 applies to the processor and fixed I/O points; slots 1 and 2 apply to I/O modules located in the expansion rack. In modular controllers, slot 0 is always reserved for your processor module; the remaining slots apply to the various I/O modules you have inserted.

Catalog Numbers

When you configure your controller, you must specify the processor catalog number, rack catalog numbers, and I/O module catalog numbers as required. The location of the catalog number on the various components is shown in the following figures.

3–2

Make a record of controller components: We recommend that you make a list of the processor, rack, and I/O catalog numbers, and also the rack numbers assigned to the racks and the slot locations of all I/O modules. You can then refer to this list as you configure your controller.

Getting Started Guide

for HHT

Chapter 3

Creating a Program

Catalog Number Location – SLC 500 Fixed Controllers

Label for Processor Catalog and Serial Number

SLC

500

CAT

1747–L _ _ _

Processor Catalog Number

The catalog number for the expansion rack is 1746–A2. It appears on side of the rack.

Side View

Catalog Number Location – SLC 500 Modular Controllers

Processor (CPU) Modules

Label for Processor Catalog and Serial Number

Side View

Racks

SLC

500

CAT

1747–L _ _ _

Processor Catalog Number

Label for Rack Catalog and Serial Number

SLC

500

CAT

1746–_ _ _

Rack Catalog Number

I/O Modules

Catalog Number

1746–_ _ _

The catalog number and serial number for I/O modules also appears on the side of the module.

Side View

3–3

Chapter 3

Creating a Program

Arbitrary Controller Used in this Guide

In the following procedures, we have assumed that the controller you are configuring in your program is a modular demo unit including the following components:

• Rack 1746–A4, 4–slot rack

• Processor 1747–L511 in slot 0

• Input module 1746–IA4 in slot 1

• Input module 1746–IA8 in slot 2

• Output module 1746–OA8 in slot 3

The ladder program shown on page 3–11 contains I/O addresses that are consistent with the configuration indicated above. If you are using some other controller configuration, keep in mind that these addresses may not be valid for your controller.

Creating a Program

A program is always created offline. In creating the program, you will:

• Clear the memory of the HHT.

• Name the program and configure the controller.

• Enter a ladder program.

• Save the program in the HHT.

The abbreviated function keys that you will be encountering, both in this Guide and on the HHT display, are explained in appendix C.

3–4

Getting Started Guide

for HHT

Chapter 3

Creating a Program

Clearing the Memory of the HHT

To create a new program, you must clear the HHT memory (DEFAULT program).

1. Energize your HHT. After the HHT goes through self–diagnostic tests,

the following display appears

SLC 500 PROGRAMMING SOFTWARE Rel. 2.03

PRESS A FUNCTION KEY SELFTEST TERM PROGMAINT

F1 F2 F3 F4 F5

2. Press [F3]

1747 – PTA1E

– PROGMAINT

OFL UTILITY

. Either the following display appears (if a

program is in the HHT), or. . .

File Name: Prog Name:2345 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 5

CHG_NAM CRT_FIL EDT_FIL

F1 F2 F3 F4 F5

DEL_FIL

OFL

MEM_MAP

this display appears (if a program is not in the HHT).

File Name: Prog Name:DEFAULT File Name Type Size(Instr) 0 System * 1 Reserved * 2 Ladder *

2345 (or anything other

than DEFAULT) indicates that a program is in the HHT.

DEFAULT indicates that a program is not in the HHT.

CHG_NAM CRT_FIL EDT_FIL

F1 F2 F3 F4 F5

DEL_FIL

OFL

MEM_MAP

Clear the memory as follows, even if the DEFAULT program is present.

3. Press

4. Press

5. Press [F2]

[ENTER]. More menu options appear.

[F4]

– CLR_MEM

File Name: Prog Name:2345 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 5

ARE YOU SURE?

YES

F1 F2 F3 F4 F5

– YES

. The following display appears

OFL

. This clears the HHT memory. Now you are ready to

create a program.

3–5

Chapter 3

Creating a Program

Naming the Program and Configuring the Controller

The following indicates how to name your program and configure your controller using the HHT.

Naming Your Program

1. Press

2. Press

3. Press

[ENTER] to view more options.

[F1]

– CHG_NAM

[F2]

– PROGRAM

––––––– Change Program/File Name–––––––

File Name:

Program Name: DEFAULT

ENTER NAME: DEFAULT

F1 F2 F3 F4 F5

. . The following display appears:

OFL

4. Name your program “1000.” (Press [1][0][0][0][SPACE][ENTER].)

The program name is entered.

5. Exit this menu level by pressing

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System * 1 Reserved * 2 Ladder *

CHG_NAM CRT_FIl EDT_FIL

F1 F2 F3 F4 F5

[ESC]. The following display appears:

Program Name

OFL

DEL_FIL >MEM_MAP

3–6

The program directory now shows the name of the program, which is 1000.

Getting Started Guide

for HHT

Chapter 3

Creating a Program

Configuring the Processor

1. Press

[ENTER] to view the additional menu functions (as indicated by the

> symbol in the lower right corner). The following display appears:

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System * 1 Reserve * 2 Ladder *

EDT_DAT SEL_PRO EDT_I/O

F1 F2 F3 F4 F5

2. Press [F2]

Type = 1747–L511 CPU–1K USER MEMORY Series = Memory Size = 1 K INSTRUCTIONS

TYPE SERIES

F1 F2 F3 F4 F5

3. Press

Type = 1747–L511 CPU–1K USER MEMORY Series = Memory Size = 1 K INSTRUCTIONS

– SEL_PRO

[F1] – TYPE

. The following display appears:

CLR_MEM >

. The following display appears:

OFL

Type = 1747–L511 CPU–1K USER MEMORY

OTHER

F1 F2 F3 F4 F5

4. Use the cursor keys ([ ↑ ] or [ ↓ ]) and press [ENTER] to select the the right

processor type. (For our example, we want the therefore, we just press

[ENTER]

). Processor module 1747–L511 is

1747–L511 type;

entered into memory.

5. Press

[ESC] to return to the following display:

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System * 1 Reserved * 2 Ladder *

EDT_DAT SEL_PRO EDT_I/O

F1 F2 F3 F4 F5

CLR_MEM >

OFL

3–7

Chapter 3

Creating a Program

Configuring Your I/O

[F3]

1. Press

Rack 1 = 1746–A4 4–SLOT RACK Rack 2 = NONE Rack 3 = NONE Slot 0 = 1747–L511 CPU–1K USER MEMORY

Slot 1 = NONE

MOD_RCK MOD_SLT DEL_SLT UND_SLT

F1 F2 F3 F4 F5

– EDT I/O

. The following display appears:

The display shows that the processor module we just entered is assigned to slot 0. It also shows the default rack selection

1746–A4. For our example we

do not have to change the rack selection. If you are using a different rack, press

[F1] – MOD_RCK

using the up and down cursor keys, then press

, then [F1]

– RACK 1

. Select the appropriate rack,

[ENTER]. If you are using

more than one rack, follow the same procedure for racks 2 and 3. The next task is to assign the I/O module slots. For our example, we use

slots 1, 2 and 3.

2. Press

Slot

3. Assign input module

[F2] – MOD_SLT

Rack 1 = 1746–A4 4–SLOT RACK Rack 2 = NONE Rack 3 = NONE Slot 0 = 1747–L511 CPU–1K USER MEMORY

Slot 1 = NONE Slot 1 = NONE

F1 F2 F3 F4 F5

1 = NONE

[↓ ] key. (For our example, we press the [ ↓ ] key once.) The following

appears on the prompt line.

. The following display appears:

OTHER

1746–IA4 to slot 1 by scrolling or jogging with the

screen appears:

Rack 1 = 1746–A4 4–SLOT RACK Rack 2 = NONE Rack 3 = NONE Slot 0 = 1747–L511 CPU–1K USER MEMORY

Slot 1 = NONE Slot 1 = 1746–IA4 4–INPUT 100/120 VAC

OTHER

F1 F2 F3 F4 F5

3–8

4. Press [ENTER]. 1746–IA4 is entered for slot 1.

5. Call up another slot number using the

[ ↓ ] and [ ↑ ] keys. Press the [ ↓ ]

key once.

Slot

2 = NONE

appears on the prompt line.

Getting Started Guide

for HHT

Chapter 3

Creating a Program

6. Press [F2]

– MOD_SLT.

7. Assign 1746–IA8 in slot 2: press the [ ↓ ] key twice, then [ENTER]. The

following display appears:

Rack 1 = 1746–A4 4–SLOT RACK Rack 2 = NONE Rack 3 = NONE Slot 0 = 1747–L511 CPU–1K USER MEMORY

Slot 2 = 1746–IA8 8–INPUT 100/120 VAC

MOD_RCK MOD_SLT DEL_SLT UND_SLT

F1 F2 F3 F4 F5

8. Call up slot 3 using the cursor key. Press the [ ↓ ] key once.

9. Press

10.Assign

[F2]

– MOD_SLT

Slot 3 = NONE

appears on the prompt line.

1746–OA8 in slot 3: press the [ ↓ ] seven times. Then press

[ENTER]. The following display appears:

Rack 1 = 1746–A4 4–SLOT RACK Rack 2 = NONE Rack 3 = NONE Slot 0 = 1747–L511 CPU–1K USER MEMORY

Slot 3 = 1746–OA8 8–OUT(TRI) 100/240 VAC

MOD_RCK MOD_SLT DEL_SLT UND_SLT

F1 F2 F3 F4 F5

Your controller is now fully configured.

11. Press

[ESC]. This returns you to the display shown below.

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System * 1 Reserved * 2 Ladder *

EDT_DAT SEL_PRO EDT_I/O

F1 F2 F3 F4 F5

CLR_MEM >

OFL

3–9

Chapter 3

Creating a Program

Monitoring Your Data File

To verify that the output and input data files for the I/O modules have been created, you can call up data files for the I/O.

1. Press

[F1]

– EDT_DAT

Address 15 data 0 O0:3.0 0000 0000

O0:3.0/0 = 0 ADDRESS NEXT_FL PREV_FL NEXT_PG PREV_PG

F1 F2 F3 F4 F5

. The following display appears:

OFL

8 bits

This is file 0, the output data file. It indicates that slot 3 of the controller has 8 bits assigned (representing outputs

O:3/0

through

O:3/7

). (For more information, see the section concerning “Addressing External I/O” in chapter 2.)

[F2]

2. Press

Address 15 data 0 I1:1.0 0000 I1:2.0 0000 0000

I1:1.0/0 = 0 ADDRESS NEXT_FL PREV_FL NEXT_PG PREV_PG

F1 F2 F3 F4 F5

– NEXT_FL

. The following display appears:

4 bits

8 bits

OFL

3–10

This is file 1, the input data file. It indicates that slot 1 of the controller has 4 bits assigned (representing inputs bits assigned (representing inputs

3. Now press

[ESC]

, then [ENTER]. The following display appears. You

I:1/0 through I:1/3), and that slot 2 has 8

I:2/0

through I:2/7).

are now ready for the next section.

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System * 1 Reserved * 2 Ladder *

CHG_NAM CRT_FIL EDT_FIL DEL_FIL MEM_MAP

F1 F2 F3 F4 F5

OFL

Getting Started Guide

for HHT

Chapter 3

Creating a Program

Programming a Simple Ladder Rung

The following rung consists of an XIC input instruction and an OTE output instruction. The addresses conform to the controller configuration indicated in the “Arbitrary Controller” section of this chapter. If you have entered a

different controller configuration, make certain that the addr

esses ar

consistent with your configuration. It is also important that you have an

external input, such as a pushbutton, and an external output, such as a pilot light, at the terminal addresses used. You will be using these external devices in later chapters of this guide.

I:1.0

] [

O:3.0

( )

Entering a Rung

To enter the rung, do the following:

1. Begin where we ended on the previous page, at the program directory

display.

2. Press [F3]

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System * 1 Reserved * 2 Ladder *

ENTER FILE NUMBER:

F1 F2 F3 F4 F5

– EDT_FIL

. The following display appears.

OFL

We want to edit file number 2, our main program file.

[2]

3. Press

[ENTER]

other rungs exist at this time. The numbers

. The display shows the END rung of a program. No

2.0.0.0.* appear in the

upper right corner of the display. This indicates that we are in File 2, and the cursor is located on rung 0, branch 0.

2.0.0.0.*

<END>

INS_RNG MOD_RNG SEARCH DEL_RNG UND_RNG

F1 F2 F3 F4 F5

4. Press [F1]

INS_INST BRANCH MOD_INST ACP_RNG

F1 F2 F3 F4 F5

– INS_RNG

<END>

. The following display appears:

2.0.0.0.*

OFL

3–11

Chapter 3

Creating a Program

Entering an “Examine if Closed” Instruction

[F1]

1. Press

BIT TMR/CNT I/O_MSG CPT/MTH

F1 F2 F3 F4 F5

– INS_INST

. The following display appears:

2.0.0.0.*

<END>

OFL

COMPARE

2. Press [F1]

] [

F1 F2 F3 F4 F5

3. Press [F1]

ZOOM on XIC NAME: EXAMINE IF CLOSED BIT ADDR:

ENTER BIT ADDR:

F1 F2 F3 F4 F5

4. At the ENTER

– BIT

—] [—

. The following display appears:

]/[

] [

BIT ADDR:

2.0.0.0.*

<END>

( )

OFL

( )

. The following display appears:

2.0.0.0.*

prompt, type the address I:1/0, then [ENTER]. (If you entered the wrong instruction by mistake, just press again.)

5. Press

[F5]

– ACCEPT

. This accepts the address. The following display

appears:

Note that the HHT “shifts” for you.

[ESC] and try

3–12

] [

<END>

] [

F1 F2 F3 F4 F5

]/[

( )

2.0.0.0.*

OFL

( ) ( )

Getting Started Guide

for HHT

Chapter 3

Creating a Program

Entering an “Output Energize” Instruction

1. Press

[F3], for the output energize instruction. The following display

appears:

ZOOM on OTE NAME: OUTPUT ENERGIZE BIT ADDR:

ENTER BIT ADDR:

F1 F2 F3 F4 F5

( )

2.0.0.0.*

2. Type bit address O:3/0, then [ENTER]. (If you entered the wrong

instruction by mistake, just press

[F5]

3. Press

[F5]

] [

INS_RNG MOD_RNG SEARCH DEL_RNG UND_RNG

F1 F2 F3 F4 F5

– ACCEPT

– ACP_ RNG

, then press [ESC] twice. Then press

. The following display appears:

<END>

[ESC]

2.1.0.0.*

and try again.)

( )

OFL

At this point the rung is entered and accepted.

4. Press

[ENTER] to display more menu options.

3–13

Chapter 3

Creating a Program

Saving Your Program

Save your program at the end of a program edit. First your program is compiled, transforming it into a more efficient package. Then the program is saved from the work area into another part of memory. In addition, the contents of program files and data files are updated. Also, a summary of data words used, instructions used, and available memory is updated.

1. Start with the screen below, where we left off in the last section.

2.1.0.0.*

] [

<END>

EDT_DAT SAVE_CT SAVE_EX

F1 F2 F3 F4 F5

( )

OFL

2. Press [F5]

Future Access: Yes

MODIFY OPTIONS, ACCEPT TO COMPILE

FUTACC ACCEPT

F1 F2 F3 F4 F5

– SAVE_EX

Compiler Options

. The following display appears:

OFL

FUTACC (Future Access): This option lets you protect proprietary program data and algorithms. The protection becomes operational only after the program is downloaded to the controller. The “Future Access: No” selection disallows online access to the processor unless a matching copy of the online program is resident in the HHT.

Important: Do not select “Future Access: No” for this exercise.

3. Press [F5]

– ACCEPT

. This compiles and saves the program. After short

time, the following display appears:

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

3–14

CHG_NAM CRT_FIL EDT_FIL

F1 F2 F3 F4 F5

DEL_FIL >MEM_MAP

4. Return to the main display by pressing

OFL

[ESC]

Getting Started Guide

for HHT

Chapter

A–B

Online Operations

In this chapter, you will complete the following tasks:

• Download program 1000, created in chapter 3.

• Test the program.

• Monitor the input and output data files.

4–1

Chapter 4

Online Operations

Downloading Your Program

This chapter shows you how to download a program from the HHT to the processor, then monitor the program. It assumes that you have performed the tasks in chapter 3, and that the HHT shows the following display.

SLC 500 PROGRAMMING SOFTWARE Rel. 2.03

PRESS A FUNCTION KEY SELFTEST TERM PROGMAINT

F1 F2 F3 F4 F5

1747 – PTA1E

OFL UTILITY

Going Online

1. Press [F5]

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

ONLINE WHO PASSWRD

F1 F2 F3 F4 F5

– UTILITY

. The following display appears:

OFL CLR_MEM

2. Press

3. Press

[F2] – WHO

[F3]

– ATTACH

Either the following display appears (if a program is not in processor memory), or. . .

Programmer Processor

Prog: 1000 Prog: DEFAULT File: File: Exec Files: 3 Exec Files: 3 Data Files: 9 Data Files: 3 DEFAULT FILE IN PROCESSOR

F1 F2 F3 F4 F5

Program Directory

DWNLOADOFFLINE CLR_PRC

MEM_PRC

PRG

this display appears (if a program is in processor memory).

Programmer Processor

Prog: 1000 Prog: 2345 File: File: Exec Files: 3 Exec Files: 3 Data Files: 9 Data Files: 9 PROGRAM FILES DIFFER

F1 F2 F3 F4 F5

Program Directory

DWNLOADOFFLINE MODEUPLOAD

PRG

CLR_PRC

Important: If the above display appears and the processor is not

in program mode, then you must change the processor

[F4]

mode. To do this, press

[F5]

– PROGRAM

, then [F2]

– MODE

– YES

, then

, and then [ESC].

4–2

Getting Started Guide

for HHT

Chapter 4

Online Operations

Downloading Your Program

1. Press DWNLOAD. The following display appears:

Programmer Processor

Prog: 1000 Prog: DEFAULT File: File: Exec Files: 3 Exec Files: 3 Data Files: 9 Data Files: 3 DOWNLOAD TO PROCESSOR?

F1 F2 F3 F4 F5

2. Press [F2]

Program Directory

YES

– YES

. This verifies that you want to download the file to the

PRG

processor. For a brief moment, the following message should appear

DOWNLOADING

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

F1 F2 F3 F4 F5

FILE.

The following display appears:

PRG

MODEDWNLOADUPLOADOFFLINE

CLR_PRC

Changing Program Mode to Run Mode

1. Press [F4]

– MODE

. The following display appears:

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

PRG

TESTRUN

F1 F2 F3 F4 F5

2. Press [F1]

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

ARE YOU SURE?

F1 F2 F3 F4 F5

– RUN

. The following display appears:

PROGRAM

NOYES

PRG

4–3

Chapter 4

Online Operations

3. Press [F2]

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

F1 F2 F3 F4 F5

– YES

. The following display appears again:

RUN

TESTRUN

PROGRAM

Monitoring the Program in Run Mode

1. Press [ESC], then [ENTER]. The following display appears:

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

RUN

EDT_DATXFERMEMPASSWRD

F1 F2 F3 F4 F5

MONITOR

2. Press [F5]

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

ENTER FILE NUMBER: RUN

F1 F2 F3 F4 F5

– MONITOR

. The following display appears:

3 . Press 2, then [ENTER]. The following display appears:

2.0.0.0.*

] [

<END>

MODE EDT_DAT SEARCH

F1 F2 F3 F4 F5

FORCE

( )

RUN

4–4

Getting Started Guide

for HHT

Chapter 4

Online Operations

Testing Your Downloaded Program

The following diagram shows the rung you entered if you are using the modular controller demo unit discussed in chapter 3. If you are using some other controller configuration, make certain that your external input device and output device are wired to the controller input and output that you addressed in your ladder program.

Address I:1.0/0 corresponds to pushbutton 0 of the demo unit.

I:1.0

] [

END

Address O:3.0/0 corresponds to pilot light 0 of the demo unit.

O:3.0

( )

To test the program, press pushbutton 0. Pilot light 0 should go on. The display should show both the XIC and OTE instructions highlighted to indicate that they are true.

Processor operation: When you pressed pushbutton 0, the input instruction went from false to true. This resulted in a path of true input instructions in the rung, causing the output instruction to go from false to true.

Monitoring Data Files

Now, release the pushbutton. Pilot light 0 should go off. Neither instruction in the rung should be highlighted. When you released pushbutton 0, the input instruction went from true to false; this broke the path of true input instructions, causing the output instruction to go from true to false.

In this procedure, you will monitor the input data file and the output data file. These files include a status bit for each of the configured I/O terminals of the controller. You will monitor data file changes as you operate pushbutton 0. To end the exercise, you will go offline.

1. Beginning with the display shown on the previous page, press

[F3]

– EDT_DAT

Address 15 data 0 O0:3.0 0000 0000

O0:3.0/0 = 0

ADDRESS NEXT_FL PREV_FL NEXT_PG PREV_PG

F1 F2 F3 F4 F5

. The following display appears:

RUN

4–5

Chapter 4

Online Operations

2. Monitor output data changes resulting from input device operation. Press

pushbutton 0. Note that the status bit corresponding with output

O:3/0

goes from 0 to 1, as the instruction goes from false to true.

Address 15 data 0 O0:3.0 0000 0001

O0:3.0/0 = 0

ADDRESS NEXT_FL PREV_FL NEXT_PG PREV_PG

F1 F2 F3 F4 F5

3. Press [F2]

Address 15 data 0 I1:1.0 0000 I1:2.0 0000 0000

I1:1.0/0 = 0 ADDRESS NEXT_FL PREV_FL NEXT_PG PREV_PG

F1 F2 F3 F4 F5

– NEXT_FL

. The following display appears:

RUN

Bit changes from 0 to 1.

4. Monitor input data changes resulting from input device operation. Press

pushbutton 0. Note that the status bit corresponding to input

I:1/0 goes

from 0 to 1, as the instruction goes from false to true.

Address 15 data 0 I1:1.0 0001 I1:2.0 0000 0000

Bit changes from 0 to 1.

4–6

I1:1.0/0 = 0 ADDRESS NEXT_FL PREV_FL NEXT_PG PREV_PG

F1 F2 F3 F4 F5

RUN

5. Return to the main display. Press [ESC] twice. The following display

appears:

2.0.0.0.*

] [

EXIT MONITOR MODE?

YES

F1 F2 F3 F4 F5

6. Press [F2]

– YES

<END>

, then press

( )

[ESC]

RUN

once. The following display

appears:

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

CONTINUE AND GO OFFLINE?

YES

F1 F2 F3 F4 F5

RUN

Getting Started Guide

for HHT

Chapter 4

Online Operations

7. Press [F2]

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 3

F1 F2 F3 F4 F5

8. Press

[ESC]

– YES

. The following screen appears:

WHO PASSWRDONLINE

. This brings up the main display.

OFL CLR_MEM

4–7

Chapter 4

Online Operations

4–8

Getting Started Guide

for HHT

Appendix

A–B

Additional Ladder Program Exercises

This appendix lets you apply what you have learned in the previous chapters. It covers:

• Entering a program with input and output branches

• Entering a program with a timer instruction

Entering Input and Output Branches

I:1/0

I:1/1

The important feature of this program is the output and input branch. The input branch is based on what is called OR or parallel logic. This means that if either input #0 OR input #1 is true, then output #0 and #1 turn on. If the rung is true, all outputs will be energized. If the rung is false, all outputs will be de–energized.

We will be editing the program created in chapter 3 to look like the one shown in the display below. It will consist of one input branch and one output branch.

O:3/0

] [

] [ ( )

<END>

F1 F2 F3 F4 F5

( )

O:3/1

Creating the Program

1. Start from the main display, which you ended with in chapter 4, Online

Operations.

SLC 500 PROGRAMMING SOFTWARE Rel. 2.03

1747 – PTA1E

PRESS A FUNCTION KEY SELFTEST TERM PROGMAINT

F1 F2 F3 F4 F5

OFL UTILITY

2. Press the following function keys (in order): [F3]

[F3]

– EDT_FIL

3. Enter the file number, which is

2. Then press [ENTER]. The program

entered in chapter 3 is displayed.

2.0.0.0.*

] [

<END>

INS_RNG MOD_RNG SEARCH DEL_RNG UND_RNG

F1 F2 F3 F4 F5

( )

OFL

– PROGMAINT

, then

A–1

Appendix

Additional Ladder Program Exercises

4. Press [F2]

– MOD_RNG

, then [F2]

– BRANCH

Adding an Input Branch

5. Press [F4]

[ENTER]. Your new display should look like this:

EXT_UP EXT_DWN APP_BR INS_BR DEL_BR

F1 F2 F3 F4 F5

] [

– INS_BR

. Then press the [→] cursor key once, then press

2.0.1.1.*

( )

<END>

OFL

Inserting an Instruction

6. Press [ESC], then [F1]

[F1]

—] [—

7. Type the bit address

– INS_INST

I:1/1, then [ENTER].

, then [F1]

– BIT

, then

8. Then press

—]

[—

F1 F2 F3 F4 F5

] [ ] [

[F5]

—]/[—

– ACCEPT

<END>

—( )—

. The following display appears:

2.0.1.1.*

( )

OFL

—(L)—

—(U)—

Adding an Output Branch

9. Press [ESC] twice. Then press the [→ ] cursor key once. Then press

[F2]

– BRANCH

10.Press

[F4]

The following display appears:

] [ ] [

EXT_UP EXT_DWN APP_BR INS_BR

F1 F2 F3 F4 F5

– INS_BR

<END>

. Then press the [→] cursor key once, then [ENTER].

2.0.1.1.*

( )

OFL

DEL_BR

A–2

Getting Started Guide

for HHT

Inserting an Instruction

Appendix

Additional Ladder Program Exercises

11. Press [ESC] once, then [F1]

[F3]

—( )—

12.Type the bit address

O:3/1, then [ENTER]. Then press [F5]

– INS_INST

The following display appears:

OTE:O0:3.0/1

] [ ] [

—]

[—

F1 F2 F3 F4 F5

—]/[—

NO FORCE

<END>

—( )—

2.0.1.1.4

( ) ( )

—(L)— —(U)—

Saving the Program

13.Press [ESC] twice. Then press [F5]

[F5]

14.Press

– SAVE_EX

appears:

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 4

, then [F5]

– ACCEPT

, then [F1]

OFL

– ACP_RNG

. The following display

– BIT

, then

– ACCEPT

. Then press [ENTER].

CHG_NAM CRT_FIL EDT_FIL

F1 F2 F3 F4 F5

DEL_FIL >MEM_MAP

OFL

15.Press [ESC] once.

Downloading the Program

Start with the main display.

1. Press [F5]

2. Press

3. Press

4. Put processor into PROGRAM mode: press

[F5]

5. Press

File Name: Prog Name:1000 File Name Type Size(Instr) 0 System 76 1 Reserved 0 2 Ladder 4

OFFLINE UPLOAD DWNLOAD

F1 F2 F3 F4 F5

– UTILITY

[F2] – WHO

[F3]

– ATTACH

–PROGRAM

[F3]

, then [F2]

– DWNLOAD

, then [F2]

– YES

. Then press

– YES

MODE >CLR_PRC

. The following display appears:

PRG

[F4]

[ESC]

– MODE

, then

A–3

Appendix

Additional Ladder Program Exercises

6. Monitor the ladder program and put the processor into the RUN mode.

To do this, press

[ENTER].

7. Press

[F1]

[ENTER], then [F5]

– MODE

, then [F1]

– RUN

– MONITOR

, then [F2]

, then press 2, then

– YES

, then [ESC].

Testing the Ladder Program

1. Press pushbutton #0. Outputs #0 and #1 turn ON. The following display

appears.

This input instruction becomes bold.

] [

] [ ( )

MODE FORCE SEARCH

F1 F2 F3 F4 F5

<END>

EDT_DAT

2.0.0.0.*

( )

RUN

These

output instructions become bold.

2. Release pushbutton #0. Outputs #0 and #1 turn OFF.

3. Press pushbutton #1. Outputs #0 and #1 turn ON. The following display

appears.

] [

] [ ( )

<END>

MODE FORCE SEARCHEDT_DAT

F1 F2 F3 F4 F5

2.0.0.0.*

( )

RUN

These

output instructions become bold.

4. Release pushbutton #1. Outputs #0 and #1 turn OFF To return to the main display, press

[ESC] and respond YES to any prompts

until the main display appears.

A–4

Getting Started Guide

for HHT

Appendix

Additional Ladder Program Exercises

Entering a Timer Instruction

T4:0/14

T4:0/13

In this exercise, you enter a timer instruction with a time delay of 10 seconds. Two different types of timer status bits activate output pilot lights #0 and #1. The first type, called a “timer timing” status bit turns on output #0 for 10 seconds. The second type, called a “done” status bit, turns on output #1 after 10 seconds.

The program that you will enter in this exercise will look like the one in the display below:

I:1/0 TON

]

[ ] [ ( ) ] [ ( )

<END>

F1 F2 F3 F4 F5

(TON)

O:3/0

O:3/1

Start with the main display below:

SLC 500 PROGRAMMING SOFTWARE Rel. 2.03

1747 – PTA1E

PRESS A FUNCTION KEY SELFTEST TERM PROGMAINT

F1 F2 F3 F4 F5

1. [F5]

– UTILITY

[F5] – CLR_MEM

[F2] – YES

OFL UTILITY

4. [ESC]

5. Rename program as shown in chapter 3, Creating a Program.

6. Reconfigure the controller as shown in chapter 3, Creating a Program.

Entering the Program

1. Press [F3]

2. Enter file number

– PROGMAINT

2, then press [ENTER]. The following display appears:

<END>

, then [F3]

2.0.0.0.*

– EDT_FIL

OFL

INS_RNG MOD_RNG SEARCH DEL_RNG UND_RNG

F1 F2 F3 F4 F5

A–5

Appendix

Additional Ladder Program Exercises

] [

<END>

] [

<END>

(TON)

3. Enter a rung and an XIC instruction. Press or enter the following:

[F1]

A. B. C. D.

– INS_RNG [F1] – INS_INST [F1] – BIT [F1] —] [—

E. I:1/0 F. [ENTER] G.

[F5] – ACCEPT

H. [ESC]

4. Enter the Timer Instruction. Press or enter the following:

[F2]

A. B.

– TMR/CNT [F1] – TON

C. T4:0 (This is the Timer Address.)

] [ ] [

<END>

(TON)

[ENTER]

D. E. 1000 (This is the Timer Preset Value in hundredths of a second.)

[ENTER]

F. G. 0 (This is the Timer Accumulated Value.)

[ENTER]

H. I. [F5]

– ACCEPT

J. [ESC] K. [ESC] L.

[F5] – ACP_RNG

5. Enter a second rung and an XIC instruction. Press or enter the following:

[F1]

A. B. C. D.

– INS_RNG [F1] – INS_INST [F1] – BIT [F1] —] [—

E. T4:0/14 (14 represents the timer timing bit.) F.

[ENTER]

A–6

G. [F5]

– ACCEPT

] [ ] [

] [ ] [ ] [

Getting Started Guide

(TON)

<END>

(TON) ( )

<END>

for HHT

Appendix

Additional Ladder Program Exercises

6. Enter an OTE instruction. Press or enter the following:

[F3]

—( )—

B. O:3/0 C. [ENTER] D.

[F5] – ACCEPT

E. [ESC] F. [ESC] G.

[F5] – ACP_RNG

7. Enter a third rung and an XIC instruction. Press or enter the following: A.

[F1]

– INS_RNG

[F1] – INS_INST

[F1] – BIT

[F1] —] [—

E. T4:0/13 (13 represents the done bit.) F.

[ENTER]

G. [F5]

– ACCEPT

8. Enter an OTE instruction. Press or enter the following: A.

[F3]

—( )—

B. O:3/1 C. [ENTER] D.

[F5] – ACCEPT

E. [ESC] F. [ESC] G.

[F5] – ACP_RNG

Your final display should look like this:

2.3.0.0.*

]

[ ] [ ( ) ] [ ( )

<END>

INS_RNG MOD_RNG SEARCH DEL_RNG UND_RNG

F1 F2 F3 F4 F5

(TON)

OFL

A–7

Appendix

Additional Ladder Program Exercises

9. Save the program. Press or enter the following:

[ENTER]

A. B. [F5] C.

– SAVE_EX

[F5] – ACCEPT

D. [ESC]

10.Go online and run the program. Press or enter the following:

[F5]

A. B. C. D. E. F.

– UTILITY [F2] – WHO [F3] – ATTACH [F4] – MODE [F5] – PROGRAM [F2] – YES

G. [ESC] H. [DWNLOAD] I.

[F2] – YES

11. Monitor the ladder program. Press or enter the following: A.

[ENTER]

B. [F5]

– MONITOR

C. 2 D. [ENTER]

12.Change Processor Mode to Run. Press or enter the following: A.

[F1]

– MODE

[F1] – RUN

[F2] – YES

D. [ESC]

A–8

Getting Started Guide

These

bit instructions become bold.

for HHT

Appendix

Additional Ladder Program Exercises

13.Test your Ladder Program. Do the following: A. Press pushbutton #0 for at least 10 seconds. During the first 10

seconds, output #0 turns ON and #1 stays OFF. The following display appears:

2.3.0.0.*

]

[

] [ ( )

<END>

MODE FORCE SEARCHEDT_DAT

F1 F2 F3 F4 F5

(TON)

RUN

B. After 10 seconds, output #0 turns OFF and output #1 turns ON. The

following screen appears:

These

bit instructions become bold.

2.3.0.0.*

]

[

] [ ( )

<END>

MODE FORCE SEARCHEDT_DAT

F1 F2 F3 F4 F5

(TON)

RUN

C. Release pushbutton #0; the timer resets and both outputs #0 and #1

turn OFF.

TON

D. Place the cursor on the

[ZOOM]. The following screen appears:

Press

ZOOM on TON –(TON)– NAME: TIMER ON DELAY TIMER: T4:0 TIME BASE .01 SEC PRESET: 1000 ACCUM: 0

EDT_DAT

F1 F2 F3 F4 F5

EN TT DN 000

instruction (press the [→ ] key twice).

2.0.0.0.2

The accumulator value changes In step (e).

Notice that the values for EN, TT, and DN also change.

E. Repeat steps A, B and C. Watch the timer accumulator value change.

A–9

Getting Started Guide

for HHT

Appendix

A–B

Troubleshooting Errors

This appendix shows you how to identify and correct errors that you may encounter while working through this guide. They include:

• HHT error messages

• System LED status

• Processor error codes

HHT Error Messages

The table below details error messages.

This Error Message:

Change Processor to Program Mode

Default File in Processor

Download Denied, Compiler Errors

Error: Undefined I/O Address

Appears when: Correct the Error by:

You attempt to download a program from the HHT to a processor that is in RUN mode.

You clear the processor memory, which is then automatically loaded with a “Default” program.

You attempt to download a program saved with errors (possibly I/O configuration errors).

A mismatch exists between the I/O addresses used in the ladder program and the configured I/O modules.

Entering the MODE menu to change the processor from the RUN to PROGRAM mode.

Downloading a program from the HHT memory in order to monitor controller operation.

Going offline and checking the ladder program for any discrepancies between the I/O configuration and addresses used in the program. Either edit the program and change the address to agree with the configured I/O modules, or re–configure the I/O to match the entered address. For the latter, refer to chapter 3 for extra help. Important: You can SAVE the program with errors (to correct at a later time), but you cannot download the program to the processor.

Either editing the program and changing the address to agree with the configured I/O modules, or re–configuring the I/O to match the entered address. For the latter, refer to chapter 3 for extra help. Important: You can SAVE the program with errors (to correct at a later time), but you cannot download the program to the processor.

Illegal Operand

Illegal Network

Incompatible Processor Type

An address that you entered is not in the correct format.

You have a release of the HHT memory pak (<2.0) that does not support DH–485 network communications.

The processor that you have configured in your program does not match the processor your HHT is communicating with.

Refering to chapter 2, Control Basics, for proper addressing format.

Obtaining an upgraded memory pak (release 2.0 or greater) from your local Allen–Bradley Sales Office or Distributor.

Going offline and changing the processor type in the Processor Configuration. For extra help, see chapter 3.

B–1

Appendix B

roubleshooting Errors

This Error Message:

Not a Processor

Program Files Differ

Warning: Undefined I/O Referenced

Appears when: Correct the Error by:

Either you are trying to ATTACH the HHT to either itself or a non–processor device while in the WHO utility.

Using the

[

↓ ] or

[

↑ ] keys to change the order of

the nodes listed on the WHO screen. Put the processor at the top of the list and try to re–ATTACH.

Changing the communication parameters of the HHT in the node configuration menu. From the

Or you are trying to ATTACH the HHT to a non–existent device, or no devices are shown on the WHO screen.

WHO screen, press [F4] changing the baud rate by pressing [F3] the node address by pressing [F1] or the maximum node address by pressing [F2] MAX_ADR. Try different combinations. (The processor defaults at node address 1 and baud rate 19200.)

Making the programs the same by either uploading

The ladder program in the processor memory does not match the program stored in the HHT memory.

The address you entered does not match the I/O configuration.

the processor program into the HHT (overwriting the HHT memory) or downloading the HHT program to the processor (overwriting the processor memory). Caution: The overwritten program is lost.

Either changing the address to agree with the configured I/O modules or exiting the edit mode and re–configuring the I/O to match the entered address. For the latter, refer to chapter 3, Creating a Program, for extra help.

– NODE_CFG.

BAUD

CHG_ADR

Try

B–2

Getting Started Guide

for HHT

Appendix B

roubleshooting Errors

System LED Status

Modular System

The System LEDs are located at different places on the modular system and the SLC fixed controller. Refer to the Installation and Operation manual for more information on system LED status. See the figure and table below:

SLC 500 Fixed Controller

POWER

POWER PC RUN

CPU FAULT PC RUN CPU FAULT FORCED I/O BATTERY LOW

Processor LED Status of LED Cause Corrective Action

Verify line power within range. Verify wiring and grounding. Check power supply fuse. For modular system,

POWER Off No DC power to backplane

verify power supply jumper is positioned correctly and that the power supply has been sized properly for loading in the rack.

Verify

that position of notch in proces

CPU FAULT Steady Bad CPU or firmware improperly

installed

sor firmware chip matches processor board diagram. See corrective action for Power LED.

Correct the problem based on the ror message. First clear the fault.

CPU FAULT Flashing Processor major fault

Then press and return processor to RUN mode. See processor error codes.

BATTERY LOW Steady

Battery voltage fallen below threshold to retain RAM memory; or no battery present; or LED jumper is missing

Replace

1747–BA and processor power; or add 1747–BA to retain RAM memory; or add LED jumper to prevent the LED from lighting.

FORCED I/O BATTERY LOW

do not remove

B–3

Appendix B

roubleshooting Errors

Processor Error Codes

The table below details some of the processor error codes. Refer to the HHT manual for a complete list of error codes and troubleshooting information.

Error Code Cause Corrective Action

RAM program is corrupt due to

0001

0012

XX50, XX51, XX52 XX53, XX54, XX55

(xx = slot #)

0056 Rack configuration error.

noise, lightning, improper grounding, or loss of capacitor or battery back–up.

RAM program is corrupt or RAM itself is bad due to noise, lightning, improper grounding, or loss of capacitor or battery back–up.

I/O module configuration/conflict or runtime problem.

Check wiring, layout, and grounding. If using a 4K CPU,

verify that a battery memory when power is removed. See CPU FAULT–Flashing load the program using the HHT.

Check

wiring, layout, grounding. If using a 4K CPU, verify that a battery is installed to retain RAM memory when power is removed. See CPU FAULT–flashing under system LED status. Download the program using HHT.

Verify that processor configuration matches your hardware. See chapter 3 on configuring for key-

Also see CPU F

strokes. System LED status.

Verify that rack configuration in your program matches

your hardware. ing for keystrokes. If multiple rack system, verify proper installation of rack interconnect cable. See

AUL

CPU tus.

T — Flashing — under system LED sta

is installed to retain RAM

under system LED status. Down

AUL

T —

Flashing — under

See chapter 3 on configur

B–4

Getting Started Guide

for HHT

Appendix

A–B

Identifying HHT Function Keys & Instruction Mnemonics

This appendix provides a listing of the abbreviated function keys and their meaning. It also provides a list of instruction mnemonics.

HHT Function Keys and Their Meaning

Below is a list of abbreviated function keys and their meaning.

Abbreviation: Meaning:

ACCUM accumulator value ACP_RNG accept rung ADDR address APP_BR append branch B battery CAN_ED cancel edit CAN_RNG cancel rung CHG_NAM change name CLR_MEM clear memory CLR_PRC clear processor CONT continuous CPT/MTH compute/math CRT_DT create data CRT_FIL create file CSN continuous scan CUR_INS current instruction CUR_OPD current operand DEL_BR delete branch DEL_DT delete data DEL_FIL delete file DEL_INS delete instruction DEL_RNG delete rung DEL_SLT delete slot DWNLOAD download EDT_DAT edit data EDT_FIL edit file EDT_I/O edit I/O

C–1

Appendix C

Identifying HHT

Mnemonics

Function Keys & Instruction

Abbreviation: Meaning:

ENT enter ENT_MAS enter master EXEC_FILE executable files EXT_DWN extend down EXT_UP extend up F force FLT fault INS_BR insert branch INS_INST insert instruction INS_RNG insert rung I/O_MSG I/O message MEM_MAP memory map MEM_PRC memory module to processor MEM_SIZ memory size MOD_INS modify instruction MOD_RCK modify rack MOD_RNG modify rung MOD_SLT modify slot MOR_CPT more compute MOV/LOG move/logic NEW_INS new instruction NEW_PRG new program NEXT_FL next file NEXT_PG next page OFL offline PASSWRD password PRC_MEM processor to memory module PREV_FL previous file

C–2

PREV_PG previous page PRG program PRG_SIZE program size PROGMAINT program maintenance RLY relay REM remove REM_ALL remove all

Getting Started Guide

for HHT

Abbreviation: Meaning:

REM_MAS remove master SAVE_CT save and continue SAVE_EX save and exit SEL_PRO select processor SFT/SEQ shift/sequencer SNK sink SRC source SSN single scan TMR/CNT timer/counter TRANS transistor UND_INST undelete instruction

Appendix C

Identifying HHT

Mnemonics

Function Keys and Instruction

Instruction Mnemonics

UND_RNG undelete rung WTCHDOG watchdog XFERMEM transfer memory

The table below provides a complete list of instruction mnemonics.

Mnemonic: Instruction:

ADD add AND and BSL bit shift left BSR bit shift right CLR clear COP copy file CTD count down CTU count up DCD decode 4 to 1 of 16 DDV double divide DIV divide EQU equal FFL FIFO load FFU FIFO unload FLL fill file FRD convert from BCD GEQ greater than or equal to

C–3

Appendix C

Identifying HHT

Mnemonics

Function Keys & Instruction

Mnemonic: Instruction:

GRT greater than HSC high–speed counter IID I/O interrupt disable IIE I/O interrupt enable IIM immediate input with mask INT I/O Interrupt IOM immediate output with mask JMP jump to label JSR jump to subroutine LBL label LEQ less than or equal to LES less than LFL LIFO load LFU LIFO unload LIM limit test MCR master control reset MEQ masked comparison for equal MOV move MUL multiply MVM masked move NEG negate NEQ not equal NOT not OR or OSR one shot rising OTE output energize OTL output latch OTU output unlatch

C–4

PID proportional integral derivative REF I/O refresh RES reset RET return from subroutine RPI reset pending I/O interrupt RTO retentive on–delay timer SBR subroutine

Getting Started Guide

for HHT

Mnemonic: Instruction:

SCL scale data SQC sequencer compare SQL sequencer load SQO sequencer output SQR square root STD STI disable STE STI enable STS STI start immediately SUB subtract SUS suspend SVC service communications

Appendix C

Identifying HHT

Mnemonics

Function Keys and Instruction

TND temporary end TOD convert to BCD TOF timer off–delay TON timer on–delay XIC examine if closed XIO examine if open XOR exclusive or

C–5

Appendix C

Identifying HHT

Mnemonics

Function Keys & Instruction

C–6

Getting Started Guide

for HHT

Glossary

A–B

Glossary

The following terms are used throughout this manual. Refer to them while working in this manual.

address: A character string that uniquely identifies a memory location. For example, I:1/0 is the memory address for the data located in the Input file location 1/0.

APS: (Advanced Programming Software) Software for a computer used to monitor and develop SLC 500 ladder logic programs.

attach: To establish communication with a processor. bit: The smallest storage location in memory that contains either a 1 (ON) or

a 0 (OFF).

branch: A parallel logic path within a rung of a ladder program. communication scan: A part of the SLC’s operating cycle. Communication

with other devices, such as the HHT, takes place. controller: A device, such as a programmable controller, used to monitor

input devices and control output devices. CMOS (Complementary Metal–Oxide Semiconductor): A semiconductor

device in which an electric field controls the conductance of a channel under a metal electrode called a gate.

CPU (Central Processing Unit): The decision–making and data storage section of a programmable controller.

data file: An area within a processor file that contains the status of inputs, outputs, the processor, timers, counters, and so on.

download: To transfer a program from HHT memory to an SLC. edit: To create or modify a ladder program. expansion rack: A 2–slot rack used only with fixed controllers. false: The status of an instruction that does not provide a continuous logical

path on a ladder rung.

file: A collection of information organized into one group. fixed controller: A controller with a power supply, CPU, and I/O integrated

into a single package. function keys: Keys on a personal computer or HHT keyboard labeled F1,

F2 and so on. The operation of each of these keys is defined by HHT. hardware: The components that comprise a programmable controller, such

as Input modules, Output modules, and the CPU.

HHT: Hand–held Terminal. I/O (Inputs and Outputs): Consists of input and output devices which

provide and/or receive data from the programmable controller.

G–1

Glossary

input device: A device, such as a pushbutton or a switch, that supplies data through input circuits to a programmable controller.

input scan: A part of the SLC’s operating cycle. Status of the input modules are loaded into the Input data file.

instruction: A mnemonic and data address defining an operation to be performed by the processor. A rung in a program consists of a set of input and output instructions. The input instructions are evaluated by the SLC as being true or false. In turn, the SLC sets the output instructions to true or false.

ladder logic: A program written in a format resembling a ladder–like diagram. The program is used by a programmable controller to control devices.

memory: An area in either an HHT or processor that stores the ladder program (progam and data files).

memory pak: A circuit board that goes into the back of the HHT containing the software and language to operate the HHT.

mnemonic: A three–letter abbreviation for a ladder programming instruction.

modular controller: SLC 500 system consisting of a power supply, racks, CPU, and input and output modules.

module: An interchangeable plug–in device that may be inserted into a rack. network: A series of devices connected by a communication medium. offline: Describes devices not under direct communication. For example,

when programming with an HHT. online: Describes devices under direct communication. For example, when

the HHT is monitoring the program file in a SLC. Also, a function in the HHT to establish communications with an SLC after using the WHO screen.

operating cycle: The sequential order of operations performed by the processor when in the run mode.

OTE (OuTput Energize): An instruction that energizes when a rung is true and de–energizes when a rung is false.

output device: A device, such as a pilot light or a motor starter coil, that receives data from the programmable controller.

output scan: A part of the SLC’s operating cycle. During this scan the output data file information is transferred to the output modules.

processor: See CPU.

G–2

processor file: The set of Program and Data Files used by the SLC to control output devices. Only one processor file may be stored in the SLC at a time. In HHT terminology program is equivalent to processor file.

processor overhead: An internal portion of the operating cycle used for house–keeping and set–up purposes.

program: The set of Program and Data Files used by the SLC to control output devices. Only one processor file may be stored in the SLC at a time. In HHT terminology program is equivalent to processor file.

Getting Started Guide

for HHT

Glossary

program file: The area within a processor file that contains the ladder logic program.

program mode: When the SLC is not executing the processor file and all outputs are de–energized.

program scan: A part of the SLC’s operating cycle. During the scan the ladder program is executed and the Output data file is updated based on the program and the Input data file.

rack (chassis): A hardware assembly that houses devices such as I/O modules, processor modules, and power supplies.

read: To acquire data from a storage place. For example, the processor READs information from the input data file to solve the ladder program.

restore: To download (transfer) a program from the HHT to an SLC. run mode: When the processor file in the SLC is being executed, inputs are

read, the program is scanned, and outputs are energized and de–energized. rung: Ladder logic is comprised of a set of rungs. A rung contains input

and output instructions. During Run mode, the inputs on a rung are evaluated to be true or false. If a path of true logic exists, the outputs are made true. If all paths are false, the outputs are made false.

SLC (Small Logic Controller): A controller that comes in one of two styles: fixed or modular.

slot: The area in a rack that a module plugs into. software: Executable programming package used to develop SLC ladder

diagrams. status: The condition of a circuit or system, represented as logic 0 (OFF) or

1 (ON). terminal: A point on an I/O module that external I/O devices, such as a

pushbutton or pilot light, are wired to. true: The status of an instruction that provides a continuous logical path on

a ladder rung.

upload: To transfer a program from an SLC to the HHT memory. WHO: A utility in the HHT that lets you view the devices on your DH–485

network. write: To copy data to a storage device. For example, the processor

WRITEs the information from the output data file to the output modules. eXamine If Closed (XIC): An input instruction that is logically true when

the status of the bit located at its address is a 1; false when it’s a 0. eXamine If Open (XIO): An input instruction that is logically true when

the status of the bit located at its address is a 0; false when it’s a 1.

G–3

Glossary

G–4

Index

The Getting Started Guide for HHT

User Manual

addresses

display

of, 2–5 formats of, 2–5 specifying, 2–4

input, 2–4 output, 2–4

Allen–Bradley

contacting for assistance, P–3

auto shift, 1–10

, P–3

battery

, installation, 1–6 Battery T blue keys, 1–10

est Failed statement, 1–6

catalog numbers, 3–2

locating, 3–3

recording, 3–2 changing Program mode to Run mode, 4–3 clearing the memory of the HHT communication cable, installation, 1–7 configuration of controllers, 3–1

catalog numbers, 3–2

controller used in this guide, 3–4

styles, 3–2 contacting Allen–Bradley for assistance, P–3 contents of manual, P–2 controller styles, 1–2

fixed, 1–2, 3–2

modular

, 1–2, 3–2

creating a program, 3–4

clearing the memory

naming the program and configuring the

controller programming a simple ladder rung, 3–1 saving your program, 3–14

cursor movement, 1–10

, 3–5

, 3–6

, 3–5

data files, 2–1, 2–2

default types, 2–2

input, 2–2 output, 2–2 timer

, 2–2

monitoring, 3–10, 4–5 DEFAUL demonstration unit

display format, 1–9 displaying addresses, 2–5 downloading your program, 4–2

T program, 3–5

components, 3–4

setting up, 1–3

changing to Run mode, 4–3

downloading, 4–3

going online, 4–2

monitoring in Run mode, 4–4

END rung, 3–1 ENTER key entering

input and output branches, A–1

adding an input branch, A–2 adding an output branch, A–2 creating the program, A–1 downloading the program, A–3 inserting an instruction, A–2, A–3 saving the program, A–3

testing the ladder program, A–4 rungs, 3–1 timer instructions, A–5

error codes, B–4 errors

illegal network, B–1 illegal operand, B–1 incompatible processor type, B–1 not a processor program files dif

ESC key Examine if Closed instruction, 3–12 external input/output devices

addressing, 2–4 communicating with the processor

, 1–9

, 1–9, 1–10

, B–2

fer

, B–2

, 2–3

data file bits

logic 0, 2–6 logic 1, 2–6

I–1

Index

The Getting Started Guide for HHT User Manual

false rung conditions, 2–7 features, of HHT field–wired controller file concepts, 2–1

data files, 2–1, 2–2 processor file, 2–1 program, 2–1 program files, 2–1, 2–2

fixed controller

components, 1–2, 3–2 demonstration unit, 1–3 installing and wiring, 1–4

slot numbers, 3–2 function keys, meanings, C–1 FUT

ACC (Future Access), 3–14

, 1–8

, setting up, 1–4

, 1–2

going online, 4–2 green keys, 1–10

instructions, inserting, A–2, A–3

keyboard operation, 1–9

auto shift, 1–10 cursor keys, 1–10 data entry keys, 1–10 menu function keys, 1–9 ZOOM and RUNG keys, 1–10

ladder logic concepts, 2–6

logical continuity processor operating cycle, 2–8

true/false status, 2–6 LED status, B–3 locating, catalog numbers, 3–3 logical continuity

, 2–7

HHT

clearing the memory display format, 1–9 error messages, B–1 features, 1–8 keyboard operation, 1–9 powerup, 1–9

, 3–5

illegal network error illegal operand error incompatible processor type error input branch, entering, A–1, A–2 input data file, 2–2

monitoring, 3–10, 4–5

installing the

battery

, 1–6 communication cable, 1–7 memory pak, 1–4

instruction mnemonics, C–3 instruction status, 2–6

false, 2–6 true, 2–6

, B–1

manuals, related, P–2, 1–2, 1–4 memory

, clearing, 3–5 memory pak, installation, 1–4 Menu tree functions, 1–9 modular controller

components, 1–2, 3–2 demonstration unit, 1–3, 3–1, 3–4 installing and wiring, 1–4 slot numbers, 3–2

monitoring

input and output data files, 4–5 the program in Run mode, 4–4

moving the cursor

, 1–2

, 1–10

naming the program and configuring the

controller configuring the processor configuring your I/O, 3–8 monitoring your data file, 3–10 naming your program, 3–6

notes on terminology

, 3–6

, 3–7

, 2–1

I–2

Index

The Getting Started Guide for HHT

User Manual

operating cycle, processor output branch, entering, A–1, A–2 output data file, 2–2

monitoring, 3–10, 4–5

Output Energize instruction, 3–13

, 2–8

powering up, 1–9 processor error codes, B–4 processor operating cycle, 2–8 program files dif Program mode, changing to Run mode, 4–3

fer error

, B–2

programming a simple ladder rung, 3–1

entering a rung, 3–1 Examine if Closed instruction, 3–12 Output Energize instruction, 3–13

publications, related, P–2, 1–2, 1–4 purple keys, 1–9

recording, catalog numbers, 3–2 Run mode

changing from Program mode to, 4–3 monitoring the program in, 4–4

RUNG key

, 1–10

I–3

With offices in major cities worldwide.

A subsidiary of Rockwell International, one of the world’s largest technology companies, Allen-Bradley meets today’s automation challenges with over 85 years of practical plant floor experience. 11,000 employees throughout the world design, manufacture and apply a wide range of control and automation products and supporting services to help our customers continuously improve quality, productivity and time to market. These products and services not only control individual machines, but also integrate the manufacturing process while providing access to vital plant floor data that can be used to support decision–making throughout the enterprise.

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EUROPE/MIDDLE EAST/ AFRICA HEADQUARTERS

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1747–NM009 Series BFebruary, 1993

Supersedes 1747–NM009 Series AMay, 1992

ASIA/PACIFIC HEADQUARTERS

Allen–Bradley 1201 South Second Street Milwaukee, WI 53204 USA Tel: (1) 414 382-2000 Telex: 43 11 016 FAX: (1) 414 382-2400

CANADA HEADQUARTERS

Allen–Bradley Canada Limited 135 Dundas Street Cambridge, Ontario N1R 5X1 Canada Tel: (1) 519 623–1810 FAX: (1) 519 623–8930



1993 Allen-Bradley Company Printed in USA

LATIN AMERICA HEADQUARTERS

Allen-Bradley 1201 South Second Street Milwaukee, WI 53204 USA Tel: (1) 414 382–2000 Telex: 43 11 016 FAX: (1) 414 382–2400

40063–169–01(A)

Rockwell Automation 1747-PTxx User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Important User Information

Preface

Who Should Use this Manual

Purpose of this Manual

How to Use this Manual

Common Techniques Used in this Manual

Controller Styles

Setting Up a Demo Unit

Installing the Memory Pak, Battery, and Communication Cable

HHT Features

HHT Powerup

HHT Display Format

The Keyboard

SLC 500 File Concepts

How External I/O Devices Communicate with the Processor

Addressing External I/O

External I/O Addressing Formats

Ladder Logic Concepts

Configuration of SLC 500 Controllers

Creating a Program

Downloading Your Program

Testing Your Downloaded Program

Monitoring Data Files

Entering Input and Output Branches

Entering a Timer Instruction

HHT Error Messages

System LED Status

Processor Error Codes

HHT Function Keys and Their Meaning

Instruction Mnemonics

Glossary

Index