TABLE OF CONTENTS

 

CHAPTER 1: HARDWARE

1

INTRODUCTION

1

Figure 1. Example of an RS-485/422 Multi-Node Network

1

CHECKLIST

1

SPECIFICATIONS

2

Figure 2. Top View of Circuit Board

2

PORT CONFIGURATION

2

RS-485/422 Port

2

Table 1. RS-422/485 Port

3

RS-232 Port

3

Table 2. RS-232 DTE DB25P Connector Chart

4

RS-422/485 Wiring

4

2-Wire Mode

4

Table 3. Component Values For Send Data Timing

5

Figure 3. RS-485 Wiring Diagram

6

4-Wire Mode

6

Figure 4. RS-422 Wiring Diagram

7

RS-485 AND RS-422 TERMINATION

7

POWER SUPPLY

7

OPERATION

8

Figure 5. Simplified Functional Diagram

9

COMMUNICATION CONFIGURATION

9

DISTRIBUTED SMART SWITCH COMMANDS

9

The Command String

10

ON Command

10

OFF Command

11

STATUS REQUEST Command

11

SETTING THE 485DSS ADDRESS

14

Table 4. Address Switch

14

BINARY FILE TRANSFER

15

CHAPTER 2: SOFTWARE

16

DESCRIPTION

16

HARD DRIVE INSTALLATION

16

RUNNING DEMONSTRATION PROGRAM

17

APPENDIX A: ASCII CHARACTER CODES

A-1

APPENDIX B: DECIMAL/HEXADECIMAL CONVERSIONS

B-1

Table 5. Hex/Dec Conversions

B-1

485DSS3298 Manual

Table of Contents

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B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 434-7094

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B&B Electronics 485DSS manual Table of Contents