OPTO 22 PAMUX, User Manual

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TABLE OF CONTENTS
iv Pamux User’s Guide
Connecting to an Adapter Card .................................................................................................. 2-26
Setting AC28 Jumpers........................................................................................................ 2-26
AC28 Acknowledgment Data ............................................................................................. 2-27
Connecting Field Wiring ............................................................................................................. 2-28
Wiring Digital Modules ....................................................................................................... 2-28
Wiring Quad Pak Modules .................................................................................................. 2-31
Wiring Analog Modules ..................................................................................................... 2-33
Chapter 3: Programming with the Pamux Driver .......................................... 3-1
Overview .................................................................................................................................... 3-1
What Is the Pamux Driver? ......................................................................................................... 3-1
Using the Pamux Driver under DOS ............................................................................................ 3-2
Installation .......................................................................................................................... 3-2
Pamux Driver Parameters.................................................................................................... 3-2
Using the Pamux Driver with Interpreted BASIC or QBasic ................................................. 3-3
Pamux Error Codes ............................................................................................................. 3-5
Working with Banks ............................................................................................................ 3-5
Command Reference .......................................................................................................... 3-6
Using the Pamux Driver under Windows ............................................................................ 3-30
Installation .......................................................................................................................... 3-30
Architecture ........................................................................................................................ 3-30
Pamux APIs ......................................................................................................................... 3-31
API Command Reference.................................................................................................... 3-32
AC28 Operations ......................................................................................................... 3-32
Digital Bank Operations ............................................................................................... 3-33
Digital Point Operations ............................................................................................... 3-35
Digital “Fast” Operations ............................................................................................. 3-36
Analog Bank Operations .............................................................................................. 3-37
Analog Point Operations .............................................................................................. 3-38
Analog Watchdog Operations ..................................................................................... 3-39
Analog Status Operations ........................................................................................... 3-39
Pamux Utility Operations ............................................................................................. 3-40
Status/Error Codes ............................................................................................................. 3-41
Chapter 4: Programming without the Pamux Driver .................................... 4-1
Overview .................................................................................................................................... 4-1
Bus Pin Definitions - Not using AC28 ......................................................................................... 4-1
Bus Timing.................................................................................................................................. 4-2
Write Timing ....................................................................................................................... 4-2
Read Timing ........................................................................................................................ 4-2
Direct Programming of Pamux Stations with AC28 .................................................................... 4-3
Variables Used in Examples ................................................................................................ 4-3
Utility Subroutines Used in Examples ................................................................................. 4-4
TURN off reset ............................................................................................................................ 4-5
Resetting the System ......................................................................................................... 4-5