Allen-Bradley SLC 500 BASIC User manual

SLC500™BASICand

BASIC-T Modules

(Catalog Numbers 1746-BAS and

1746-BAS-T)

User Manual

Spare Allen-Bradley Parts

Important User

Information

Because of the variety of uses for the products described in this publication, those

responsible for the application and use of this control equipment must satisfy

themselves that all necessary steps have been taken to assure that each application

and use meets all performance and safety requirements, including any applicable

laws, regulations, codes and standards.

The illustrations, charts, sample programs and layout examples shown in this

guide are intended solely for purposes of example. Since there are many variables

and requirements associated with any particular installation, Rockwell

International Corporation does not assume responsibility or liability (to include

intellectual property liability) for actual use based upon the examples shown in

this publication.

Rockwell Automation publication SGI-1.1, Safety Guidelines for the Application,

Installation and Maintenance of Solid-State Control (available from your local

Rockwell Automation office), describes some important differences between

solid-state equipment and electromechanical devices that should be taken into

consideration when applying products such as those described in this publication.

Reproduction of the contents of this copyrighted publication, in whole or part,

without written permission of Rockwell Automation, is prohibited.

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

Attention statements help you to:

•identify a hazard

•avoid a hazard

•recognize the consequences

PLC-5 is a registered trademark; and MicroLogix, SLC 500, RSLogix, and RSLinx are trademarks of Rockwell Automation.

Modbus is a trademark of Schneider Automation Incorporated.

DeviceNet is a trademark of Open DeviceNet Vendor Association (ODVA).

ATTENTION



Identifies information about practices or circumstances that

can lead to personal injury or death, property damage or

economic loss

IMPORTANT Identifies information that is critical for successful

application and understanding of the product.

iPublication1746-UM004A-US-P

Summary of Changes

The information below summarizes the changes to this manual since the last

printing.

To help you find new information and updated information in this release of the

manual, we have included change bars as shown to the right of this paragraph.

New Information

References to the 1746-BAS-T module were added throughout the manual.

Specific information regarding 1746-BAS-T optional memory modules and

module installation is shown in the table below.

For this new information See page(s)

1746-BAS-T Overview 1-1

Optional Memory Modules 2-2

Jumper Settings for Optional Memory Modules 3-3 and 3-4

1746-BAS-T Module ID Code 4-3

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iPublication 1746-UM004A-US-P

Table of Contents

Preface

Who Should Use This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

How to Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-2

Terms and Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-3

Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . P-3

Rockwell Automation Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-4

Local Product Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-4

Technical Product Assistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . P-4

Your Questions or Comments on this Manual . . . . . . . . . . . . . . P-4

Chapter 1

Module and Development

Software Overview

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

BASIC and BASIC-T Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Software Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Module Communication Ports . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Module LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

BASIC Development Software (1747-PBASE) . . . . . . . . . . . . . . . . . 1-5

Typical Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Module Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Module Programming Interface . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Module Network Configurations . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Chapter 2

Component Selection

Memory Requirements for BASIC Programming . . . . . . . . . . . . . . . 2-1

Optional Memory Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Components Required for DH485 Communication. . . . . . . . . . . . . 2-3

Alternate Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

1747-AIC Isolated Link Coupler. . . . . . . . . . . . . . . . . . . . . . . . . 2-5

1747-PIC Interface/Converter. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

1784-KR DH485 Interface Card . . . . . . . . . . . . . . . . . . . . . . . . 2-6

DH485 Cable Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Components Required for DF1 Communication . . . . . . . . . . . . . . . 2-6

Chapter 3

Installing and Wiring Your

Module

Setting Module Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Setting Jumper JW1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Setting Jumper JW2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Setting Jumper JW3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Setting Jumper JW4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Installing Your module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Wiring Your Communication Ports . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

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Wiring to Ports PRT1 and PRT2 . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Hardware Handshaking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

DTE and DCE Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

DTE - Data Terminal Equipment . . . . . . . . . . . . . . . . . . . . . . . 3-9

DCE - Data Communication Equipment. . . . . . . . . . . . . . . . . 3-10

Wiring to Port DH485. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Chapter 4

Programming Overview

Understanding Module Memory Organization. . . . . . . . . . . . . . . . . 4-1

Allocating SLC memory for the Module . . . . . . . . . . . . . . . . . . . . . . 4-2

Module ID Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

BASIC Programming Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

BASIC Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

BASIC Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5

BASIC Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Creating and Editing a BASIC Program . . . . . . . . . . . . . . . . . . . . . . 4-7

Entering a BASIC Program Using an ASCII Terminal . . . . . . . . 4-7

Running a BASIC Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Stopping a BASIC Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Editing a BASIC Program Line Through an ASCII Terminal. . 4-10

Deleting a BASIC Program Line. . . . . . . . . . . . . . . . . . . . . . . . 4-11

Renumbering a BASIC Program. . . . . . . . . . . . . . . . . . . . . . . . 4-12

Transferring Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Transferring Data Between the SLC Processor and Port PRT2 . 4-13

Transferring Data Between the SLC Processor and Port PRT1 . 4-15

Transferring Data Between the SLC Processor and Port DH485 4-16

Transferring Data Between the SLC Processor and the Module 4-17

Status Information for the SLC Processor . . . . . . . . . . . . . . . . . 4-17

SLC Fault Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19

Appendix A

Specifications

Module Hardware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

1747-PBASE BASIC Development Software Specifications . . . . . . . A-2

Related Products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3

Appendix B

Module Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Port PRT1 Configuration (Jumper JW1) . . . . . . . . . . . . . . . . . . . . . B-1

Port PRT2 Configuration (Jumper JW2) . . . . . . . . . . . . . . . . . . . . . B-2

Optional Memory Module Selection (Jumper JW3) . . . . . . . . . . . . . B-3

Program Port and Protocol Selection (Jumper JW4). . . . . . . . . . . . . B-4

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Table of Contents iii

Appendix C

Lithium Battery Replacement,

Handling, and Disposal

Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Battery Handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Battery Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

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Table of Contents iv

P-1 Publication1746-UM004A-US-P

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

•terms and abbreviations

•conventions used in this manual

•Rockwell Automation support

Who Should Use 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

Rockwell Automation representative for information on available training courses

before using this product.

Purpose of this Manual

This manual is a reference guide for the design and installation of the SLC 500

BASIC and BASIC-T modules. It describes the procedures for installing and using

the modules.

Chapter Title Contents

Preface Describes the purpose, background, and scope of this

manual. Also lists related publications.

1 Module and

Development

Software Overview

Explains the hardware and software features.

2 Component Selection Explains and illustrates how to select memory modules,

network configurations, and modems for your

application.

3 Installing and Wiring

your Module Provides installation procedures and wiring guidelines.

4 Programming

Overview Provides information needed to program your module.

Appendix A Specifications Presents the modules’ specifications.

Appendix B Worksheets Describes how to set the module for proper functioning.

Appendix C Lithium Battery

Replacement,

Handling, and

Disposal

Provides important information for the replacement,

handling, and disposal of lithium batteries.

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Publication 1746-UM004A-US-P

P-2

Related Documentation

The following documents contain additional information regarding Rockwell

Automation products. To obtain a copy, contact your local Rockwell Automation

office or distributor.

How to Use this Manual

To use this manual effectively, use the worksheets provided in appendix B. The

worksheets can help you document your application and settings and also facilitate

the flow of information to other individuals in your organization for

implementation.

For Read this document Publication Number

A BASIC Language reference

manual that describes BASIC

commands, CALLS, and functions

BASIC Language Reference

Manual 1746-RM001A-US-P

A programming manual with

detailed instructions on installing

and using BASIC Development

Software to program the BASIC

and BASIC-T modules.

BASIC Development

Software Programming

Manual

1746-PM001A-US-P

An overview of the SLC 500

family of products SLC 500 System Overview 1747-SO001A-US-P

A description of how to install

and use a Modular SLC 500

Processor

Modular Hardware Style

Installation and Operation

Manual

1747-6.2

A reference manual that contains

status file data and instruction

set information for SLC 500

processors

SLC 500™ and MicroLogix™

1000 Instruction Set

Reference Manual

1747-6.15

A description of how to install

and use a module that acts as a

bridge between DH485 networks

and devices requiring DF1

protocol.

DH485/RS-232C Interface

Module User’s Manual 1747-6.12

In-depth information on

grounding and wiring

Allen-Bradley programmable

controllers

Allen-Bradley

Programmable Controller

Grounding and Wiring

Guidelines

1770-4.1

A glossary of industrial

automation terms and

abbreviations

Allen-Bradley Industrial

Automation Glossary AG-7.1

An article on wire sizes and types

for grounding electrical

equipment

National Electric Code Published by the National

Fire Protection Association

of Boston, MA

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