
TABLE OF CONTENTS
| SECTION 1 OVERVIEW | 
 | 
| DESCRIPTION | |
| MANUAL ORGANIZATION | |
| MANUAL CONVENTIONS | |
| Symbols and Term inology | |
| TECHNICA L SUPPORT | |
| SECTION 2 SETUP AND OPERATION | 
 | 
| INTRODUCTION | |
| OPERATING PRECAUTIONS | |
| EQUIPMENT | |
| FIRST TIME OPERATION | |
| Using a PC | |
| Using a Terminal | |
| UPLOADING AND DOWNLOADING | 
 | 
| P R OG R AM S | |
| Editing pr ogram s and pro gram ming hints | |
| WHERE TO G O FROM H ERE | |
| TROUBLESHOOTING | |
| SECTION 3 S A VI N G P R OG R AM S | 
 | 
| INTRODUCTION | |
| SAVING A PROGRAM | |
| AUTORUNNING | |
| PREVENTING AUTORUN | |
| LOADING A PROGRAM | |
| C H A N GI N G E P R OM S IZ E | |
| A L T ER N A TE E P RO M S | |
| COMMANDS | |
| SECTION 4 SERIAL PORTS | 
 | 
| DESCRIPTION | |
| COM0 SERIAL PORT | |
| COM1 SERIAL PORT | |
| RS - 422/485 Termination network | |
| Two wire  | |
| Multidrop Network | |
| ACCESSING SERIAL BUFFERS | |
| A C C E SS IN G C OM 0 A ND C O M 1 | |
| DISABLIN G CON TROL  | |
| SERIAL PORT PIN OUT | |
| SECTION 5 RAM ME MORY | 
 | 
| INTRODUCTION | |
| CHANGING M EMORY | |
| BATTERY BACKUP | |
| Checking the battery | |
| RESERVED ME MORY | |
| STORING VARIABLES IN RAM | |
| BLOCK DATA TRANSFER | |
| ASSEMBLY LANGUAGE INTERFACE . . | |
| COMMANDS | 
| SECTION 6 | DIGITAL AND OPTO PORTS | 
 | 
| INTRODUCTION | ||
| DIGITAL I/O PORTS | ||
| Digital Port J3 | ||
| Digital Port P6 | ||
| High Current Port L8 | ||
| Optically Isolated Input | ||
| Digital I/O Com mands | ||
| High Curr ent Output | ||
| Interfac ing Digital I/ O to an opto- module | 
 | |
| 
 | rack | |
| Interfacing to switches and other devices | ||
| Digital I/ O pro gram ming exa mple . . . . | ||
| Pulse Width Modulation (PWM) | ||
| COMMANDS | ||
| SECTION 7 | CALENDAR/CLOCK | 
 | 
| DESCRIPTION | ||
| S E TT I NG D A TE A N D T I M E | ||
| COMMANDS | ||
| SECTION 8 | DISPLAY PORT | 
 | 
| INTRODUCTION | ||
| CONNECTING DISPLAYS | ||
| WRITING TO THE DISPLAY | ||
| PROGRAMMING EXAMPLE | ||
| DISPLAY TYPES | ||
| DISPLAY CONNECTOR PIN OUT | ||
| COMMANDS | ||
| SECTION 9 | KEYPAD PORT | 
 | 
| INTRODUCTION | ||
| PROGRAMMING EXAMPLE | ||
| KEYP AD P ORT P IN OU T - J5 | ||
| SECT ION 10 ANALOG INPUT | 
 | |
| DESCRIPTION | ||
| CONNECTING ANALOG INPUTS | ||
| Overvoltage conditions | ||
| Grounding | ||
| INITIALIZATION | ||
| Differential Mode | ||
| Examples using CON FIG AIN | ||
| Acquir ing Analog Data | ||
| Noise Notes | ||
| Temper ature Measur ement | ||
| Data logging on a timer tick | ||
| MEASURING HIGHER VOLTAGES . . . . | ||
| CONVERTING ANALOG MEASUREMENTS  | ||
| Measuring  | ||
| AMPLIFIERS | ||
| CALIBRATION | ||
| COMMANDS | ||
Page ii