
TABLE OF CONTENTS
Page ii
Chapter 1 Overview
DESCRIPTION ..................... 1
MANUAL ORGANIZATION ............ 1
MANUAL CONVENTIONS ............. 1
Symbols and Terminology ........... 1
TECHNICAL SUPPORT ............... 2
Chapter 2 Setup and Operation
INTRODUCTION ................... 3
OPERATING PRECAUTIONS ........... 3
EQUIPMENT ...................... 3
FIRST TIME OPERATION ............. 4
UPLOADING AND DOWNLOADING
PROGRAMS ................... 4
Uploading programs using PC SmartLink .. 4
Downloading programs using PC
SmartLink ................... 5
Other communications software ........ 5
Editing program s and program ming hints .. 6
WHERE TO GO FROM HERE ........... 6
TROUB LESHOOT ING ................ 7
Chapter 3 Saving Programs
INTRODUCTION ................... 8
SAVING A PROGRAM ............... 8
AUTORUNNI NG .................... 8
PREVENTING AUTORUN ............. 8
Chapter 4 Serial Ports
DESCRIPTION .................... 10
COM0 SERIAL PORT ............... 10
COM1 SERIAL PORT ............... 10
RS-422/485 Termination network ...... 10
TWO WIRE RS-485 ................. 11
MULTIDROP NETWORK ............. 11
ACCESSING SERIAL BUFFERS ........ 12
ACCESSING COM0 AND COM1 ........ 12
COMMANDS ..................... 13
Chapter 5 RAM Memory
INTRODUCTION .................. 14
CHANGING M EMORY .............. 14
BATTERY BACKUP ................ 14
RESERVING MEMORY .............. 15
STORING VARIABLES IN RAM ........ 15
CORRUPTED VARIABLES ............ 15
ASSEMBLY LANGUAGE INTERFACE ... 16
COMMANDS ..................... 16
Chapter 6 Digital and Opto P orts
INTRODUCTION .................. 17
ON-CARD OPTO RACK .............. 17
Description .................... 17
Installation .................... 17
G4 operation ................... 18
PWM Output ................... 18
G5 operation ................... 18
Converting analog measurements ...... 19
DIGITAL I/O PORT ................. 19
Digital I/O commands ............. 19
High current output ............... 19
Interfacing digital I/O to an opto-module
rack ...................... 20
Interfacing to switches and other devices . 21
Digital I/O program ming example ..... 21
Table 6-1 Connector pin out - J4 ...... 21
COMMANDS ..................... 22
Chapter 7 Calendar/Clock
DESCRIPTION .................... 23
SETTING DATE AND TIME ........... 23
GENERATING INTERRUPTS .......... 23
COMMANDS ..................... 23
Chapter 8 Display Port
INTRODUCTION .................. 24
CONNECTING DISPLAYS ............ 24
WRITING TO THE DISPLAY .......... 24
PROGRAMMING EXAMPLE .......... 24
DISPLAY TYPES .................. 25
DISPLAY C ONN ECT OR PIN OUT - J6 .... 25
COMMANDS ..................... 25
Chapter 9 Keypad Port
INTRODUCTION .................. 26
PROGRAMMING EXAMPLE .......... 26
KEYPAD P ORT P IN OU T - J5 .......... 27
COMMANDS ..................... 27
Chapter 10 Analog I/O
DESCRIPTION .................... 28
CONNECTING ANALOG I/O .......... 28
Analog I/O J1 pin out ............. 28
Grounding ..................... 28
ACQUIRING ANALOG DATA ....... 28
Reducing noise .................. 29
Data logging on a timer tick ......... 29
MEASURING HIGHER VOLTAGES ... 29
Converting analog measurements ...... 29
Measuring 4-20 mA current loops ...... 30
CALIBRATION ................... 30
ANALOG OUTPUT ................. 30
Program ming ................... 31
COMMANDS ..................... 31
PROGRAM EXAMPLE .............. 31
Chapter 11 Watchdog Timer
Description ........................32
Chapter 12 User Jumpers
DESCRIPTION .................... 33
Chapter 13 Serial EEPROM
DESCRIPTION .................... 34
PROGRAM EXAMPLE .............. 34
Technical Information
ELECTRICAL SPECIFICATIONS ....... 35
MEM ORY AN D I/O bank map .......... 35
MECHANICAL SPECIFICATIONS ...... 35
JUMPER DESCRIPTIONS ............ 36
Appendix A RPBASIC -52 Software Supplement
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