Remote Technologies RPC-320 Sect ION 11 Watchdog Timer Description, External Reset, Programming

Page 3

TABLE OF CONTENTS

SECT ION 11 WATCHDOG TIMER
DESCRIPTION	11-1
EXTERNAL RESET	11-1
DESCRIPTION	11-1
OPTICALLY ISOLATED INTERRUPT . . .	11-1
INTERRUPT CHARACTERISTICS	11-1
SECT ION 12 EXTERNAL INTERRUPT
DESCRIPTION	12-1
PROGRAMMING	12-1
Program exam ples	12-1
COMMANDS	12-2
SECT ION 13 MULTI - MODE COUNTER
DESCRIPTION	13-1
SECT ION 14 POWER REDUCTION
FURTHER POWER REDUCTION	14-1
Prog ram Exam ple	14-2
SECT ION 15 TECHNICAL INFORMATION
ELECTRICAL SPECIFICATIONS	15-1
MEMORY AND I/O BANK MAP	15-2
MECHANICAL SPECIFICATIONS	15-2
JUMPER DESCRIPTIONS	15-2

Page iii RPC-320

Image 3

Contents REV TrademarksRevision Table of Contents Sect ION 13 Multi Mode Counter Description Sect ION 11 Watchdog Timer DescriptionExternal Reset Interrupt CharacteristicsSoftware Revision History Manual Organization OverviewSection DescriptionTechnical Support Symbols and Term inologySystem layout Overview SectionOperating Precautions IntroductionEquipment Uploading and Downloading Programs Using a PCUsing a Terminal First Time OperationEditing programs and program ming hints Troubleshooting Where to GO from HereW3 autorun jumper Saving ProgramsSaving a Program EpromChanging Eprom Size AutorunningPreventing Autorun Loading a ProgramBsave CommandsAlternate Eproms BloadSerial Ports COM0 Serial PortCOM1 Serial Port Serial Ports Section RS-422/485 Operating InformationRS-422/485 Termination network Accessing Serial Buffers Two wire RS-485Multidrop Network Accessing COM0 and COM1 Disabling CONTROL-CSerial Port PIN OUT RXD CTS Changing Memory Battery BackupChecking the battery RAM MemoryStoring Variables in RAM Reserved MemoryBlock Data Transfer Assembly Language InterfaceDigital and Opto Ports Digital I/O PortsDigital Por t J3 Optically Isolated Input Digital I/O CommandsDigital Port P6 High Current Port L8High Current Output Interfacing to switches and other devices Interfacing Digital I/O to an opto-module rackDigital I/ O prog ramm ing exam ple Ls e Width Modulation PWM Conne ctor pin ou t J3 Digital and Opto Ports SectionLine B Config LineCount LineSetting Date and Time DateM E Section Connecting Displays Writing to the DisplayProgramming Example Display Types Display Connector PIN OUTProgram explanation Keypad PortKeypad Port PIN OUT J5 Overvoltage conditions Connecting Analog InputsAnalog Input InitializationDifferential Mode Examples u sing CON FIG AINAcquiring Analog Data Noise Notes Temperature MeasurementAnalog Input Section Measuring Higher Voltages Data logging on a timer tickConverting Analog Measurements AmplifiersMeasuring 4-20 mA current loops Calibration External Reset Watchdog TimerInterrupt Characteristics Optically Isolated InterruptProgram Example Optically isolated and TTL interrup ts Gate ProgrammingGND LoadCOU NT0 Further Power Reduction Power ManagementProgram Examp le Power Management SectionTechnical Information Electrical SpecificationsBank Mechanical SpecificationsMemory and I/O Bank MAP Jumper Descriptions