B&B Electronics 232OPSDA manual Table of Contents

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TABLE OF CONTENTS
CHAPTER 1: INTRODUCTION	1
232OPSDA FEATURES	1
PACKING LIST	2
SOFTWARE INSTALLATION	3
232OPSDA SPECIFICATIONS	3
Analog to Digital Converter	3
Digital Input	4
Digital Output	4
Power Supply	4
Communications	4
CHAPTER 2: CONNECTIONS	5
A/D CONNECTIONS	5
DIGITAL I/O CONNECTIONS	7
Digital Input	7
Digital Output	7
SERIAL PORT CONNECTIONS	7
POWER SUPPLY CONNECTIONS	9
CHAPTER 3: COMMANDS	11
SYNTAX	12
READING A/D CHANNELS COMMAND	13
READING DIGITAL I/O COMMAND	14
SET DIGITAL OUTPUT COMMAND	14
CHAPTER 4: A/D	15
SAMPLING RATE	15
A/D CONVERTER RANGE	15
Non-buffered 0 to 5VDC A/D Inputs	15
Buffered 0 to 5V A/D Inputs	15
0 to 10VDC A/D Input	16
4-20mA Current Loop A/D Input	16
CHAPTER 5: SOFTWARE	19
APPLICATION PROGRAM INTERFACE	19
B232OPSDA_ReadAnalog	19
B232OPSDA_ReadDigital	20
B232OPSDA_SetDigitalOutput	21
deinitComPort	21
initComPort	21
LOW-LEVELCOMMUNICATIONS	22
Read A/D Command	23
Read Digital I/O Command	24
Set Digital Output State	26

Documentation Number 232OPSDA1397 Manual Table of Contents i

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

PH (815) 433-5100 -- FAX (815) 433-5105

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Contents Internet Electronics Mfg. Co. IncDesigned and Manufactured Ottawa, Illinois Table of Contents Page 232OPSDA Features IntroductionGeneral Block Diagram Packing ListAnalog to Digital Converter Software Installation232OPSDA Specifications Digital Output Power SupplyDigital Input CommunicationsConnections Terminal Function Description Block232OPSDA Digital I/O Connections Serial Port Connections232OPSDA Power Supply Connections Commands Syntax Reading A/D Channels Command 0RD Reading Digital I/O CommandSet Digital Output Command StatesNon-buffered 0 to 5VDC A/D Inputs Sampling RateConverter Range Buffered 0 to 5V A/D InputsTo 10VDC A/D Input 20mA Current Loop A/D InputGain = Application Program Interface B232OPSDAReadDigital Syntax CDeinitComPort Purpose B232OPSDASetDigitalOutputReturns See AlsoReturns See Also Low-Level CommunicationsPort Address DeinitComPortPrint #1, Command$ Read A/D CommandCommand$ = !0RA + CHR$channel MSB$ = INPUT$1, #1 LSB$ = INPUT$1, #1Read Digital I/O Command States = ASCReply$ Command$ = !0RDReply$ = INPUT$ 1, #1 Status = states and mask‘ Set Output High states = states or mask Command$ = !0SO + CHR$statesSet Digital Output State States = states and NOTmaskAppendix a Decimal to Hex to Ascii Conversion Decimal to HEX to Ascii Conversion Table