Keithley PIO-96 Instruction Manual Download Page 36 | Manualshive

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User-Serviceable Parts

PIO-96 User’s Manual

The four 8255 PPI components are in sockets. If any of the digital I/O chips are damaged by
external shorts or transients, replacing the appropriate chip may correct the problem. The 8255
chips on the PIO-96 board should be replaced with an Intel P8255A-5 chip or equivalent part
from another manufacturer. Nothing more than a screwdriver is needed to make these repairs.

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Summary of Contents for PIO-96

Page 1: ...PIO 96 ISABusDigitalI OBoard Instruction Manual...

Page 2: ...vices necessary to correct such nonconformity or develop a program change to bypass such nonconformity in the Keithley Software Failure to notify Keithley of a nonconformity during the warranty shall...

Page 3: ...y Instruments Inc All rights reserved Cleveland Ohio U S A Fourth Printing December 1999 Document Number 73270 Rev D Windows and WindowsNT are registered trademarks of Microsoft Corporation DriverLINX...

Page 4: ...into the manual Addenda are num bered sequentially When a new Revision is created all Addenda associated with the previous Revision of the manual are incorporated into the new Revision of the manual E...

Page 5: ...sent A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring Users of this product must be protected from electric shock at all times The responsi...

Page 6: ...before performing the indicated procedure The CAUTION heading in a manual explains hazards that could damage the instrument Such damage may invalidate the warranty Instrumentation and accessories sha...

Page 7: ...Setting the base address switch 2 5 Setting the wait state jumper 2 6 Connecting cables to the board 2 7 Installing the board 2 7 Checking your installation 2 8 Wiring to external circuits 2 8 Identi...

Page 8: ...ii...

Page 9: ...Installation Figure 2 1 Base address switch values 2 6 Figure 2 2 Board component locations 2 6 Figure 2 3 Pin assignments for a PIO 96 I O connector and corresponding terminal assignments for a conn...

Page 10: ...iv...

Page 11: ...List of Tables v B I O Address Map Table B 1 I O address map B 2 Table B 2 Control register bit functions for each 8255 chip B 3 Table B 3 Example control bytes for mode 0 B 4...

Page 12: ...vi...

Page 13: ...1 General Description...

Page 14: ...ses base address 0 through base address 15 and no two boards can use the same address The PIO 96 also includes a wait state generator that insures a 300ns I O cycle time minimum as required by the 825...

Page 15: ...cifically DriverLINX provides application developers a standardized interface to over 100 services for creating foreground and background tasks for the following Analog input and output Digital input...

Page 16: ...1 4 General Description PIO 96 User s Manual...

Page 17: ...2 Installation...

Page 18: ...s for now To display this manual from your DriverLINX PIO Series CD ROM open the Windows Explorer then double click on X Drvlinx4 Docs Instconf pdf where X the letter of the CD ROM drive Acrobat Reade...

Page 19: ...m now by clicking Install Inter faces and following the series of on screen instructions When done the Install These DriverLINX Components screen reappears 5 Click Install Documentation and follow the...

Page 20: ...tion NOTE Be sure to note and follow all configuration differences between installa tions for Windows NT and Windows 95 98 2 Reboot your computer The DriverLINX Plug and Play Wizard appears on your sc...

Page 21: ...any sign of damage to the shipper and the manufacturer Confirm that each item on the packing list has been shipped It is a good idea to retain the pack ing material in the event that the board must be...

Page 22: ...he wait state jumper The wait state PIO 96 generator insures a 300ns I O cycle time minimum as required by the 8255 If your computer does not require the wait state generator it can be disabled by set...

Page 23: ...ce to your external circuits to connectors J1 through J4 on the board See Figure 2 2 for locations of these connectors 3 Continue with the next procedure Installing the board Installing the board This...

Page 24: ...e Start menu click Programs 3 Find the DriverLINX Test Panels entry under which you should find the PIO Panel entry 4 Click on the PIO Panel entry The PIO Control Panel should appear 5 After you confi...

Page 25: ...herefore the numbers of an STA 50 screw termi nal accessory match the pin numbers of a PIO 96 I O 50 pin connector See Figure 2 3 above It also provides a circuit breadboarding area and a second conne...

Page 26: ...repairs The com puter power supply is designed to shutdown on a short circuit but you should not rely on this characteristic The amount of power drawn must be consistent with the capacity of the compu...

Page 27: ...3 Programming...

Page 28: ...ll find the On line Manuals entry 4 Click on the On line Manuals entry The DriverLINX Printable Documentation table of contents opens via Acrobat Reader 5 Scroll through the DriverLINX Printable Docum...

Page 29: ...A Specifications...

Page 30: ...0 A Input low current interrupt inputs 0 4mA Input high current interrupt inputs 20 A Output low voltage PA PB PC ports Isink 1 7mA 0 45V Output high voltage PA PB PC ports 2 4V Output source current...

Page 31: ...B I O Address Map...

Page 32: ...te to the control register at base address 3 or 7 11 or 15 clears all output ports The 16 locations in I O address space are allocated as shown in Table B 1 Note that the PIO 96 requires a full block...

Page 33: ...er and one 8 bit data input latch Port B Consists of one 8 bit data input output latch buffer and one 8 bit data input buffer Port C Consists of one 8 bit data output latch buffer and one 8 bit data i...

Page 34: ...his may not reflect the actual state of the output lines if one or more is shorted The state of the output latch is being read not the buffered output lines Table B 3 Example control bytes for mode 0...

Page 35: ...C User Serviceable Parts...

Page 36: ...igital I O chips are damaged by external shorts or transients replacing the appropriate chip may correct the problem The 8255 chips on the PIO 96 board should be replaced with an Intel P8255A 5 chip o...

Page 37: ...tallation 2 8 Computer resources determination for installation 2 2 Configuring DriverLINX 2 4 installation 2 4 Connector board pin assignments 2 9 mating 2 7 Connector board 2 7 Connectors summary 1...

Page 38: ...autions installation board 2 5 DriverLINX before board 2 2 Programming DriverLINX 3 1 overview 1 3 programming registers 3 1 R Registers control registers bit functions B 3 map B 1 programming 3 1 Res...

Page 39: ...This page intentionally left blank...

Page 40: ...Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 Printed in the U S A...

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