Keithley PIO-32 User Manual
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Keithley PIO-32 User Manual

Keithley PIO-32 User Manual

Isolated, digital input and output (i/o) boards
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PIO-32 Series
User's Guide
A G R E A T E R M E A S U R E O F C O N F I D E N C E

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Summary of Contents for Keithley PIO-32

  • Page 1 PIO-32 Series User’s Guide A G R E A T E R M E A S U R E O F C O N F I D E N C E...
  • Page 2 Hardware Keithley Instruments, Inc. warrants that, for a period of one (1) year from the date of shipment (3 years for Models 2000, 2001, 2002, 2010 and 2700), the Keithley Hardware product will be free from defects in materials or workmanship. This warranty will be honored provided the defect has not been caused by use of the Keithley Hardware not in accordance with the instructions for the product.
  • Page 3 EXCEPT FOR THE EXPRESS WARRANTIES ABOVE KEITHLEY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ALL IMPLIED WARRANTIES OF MERCHANT- ABILITY AND FITNESS FOR A PARTICULAR PURPOSE. KEITHLEY DISCLAIMS ALL WARRANTIES WITH RESPECT TO THE OTHER HARDWARE AND OTHER SOFTWARE.
  • Page 4 The information contained in this manual is believed to be accurate and reliable. However, Keithley Instruments, Inc., assumes no responsibility for its use; nor for any infringements or patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent rights of Keithley Instruments, Inc.
  • Page 5 PIO-32 Series User’s Guide Revision E - April, 2001 Part Number: 88170...
  • Page 6 Keithley products are designed for use with electrical signals that are rated Installation Category I and Installation Category II, as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most mea- surement, control, and data I/O signals are Installation Category I and must not be directly connected to mains voltage or to voltage sources with high transient over-voltages.
  • Page 7 (Note that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product.) If you are unsure about the applicability of a replacement component, call a Keithley Instruments office for information.

  • Page 8: Table Of Contents

    Table of Contents Preface Overview Important Safety Instructions ......Supporting Software ....... . Accessories .
  • Page 9 Identifying Symptoms and Possible Causes ... Testing the PIO-32 Series Board and Host Computer ..Testing the Accessory Slot and I/O Connections ..
  • Page 10 Troubleshooting Information ....Table A-1 PIO-32 Series Specifications ....A-1 Table B-1 37-D and 40-Pin Signals for Connectors J1 and J2 .

  • Page 12: Preface

    Preface The PIO-32 Series User’s Guide explains how to install, cable, wire, program, and use the PIO-32 Series isolated, digital input and output (I/O) boards. This guide serves data acquisition system designers, engineers, technicians, programmers, scientists, and other users responsible for setting up, cabling, wiring, and programming the PIO-32 Series boards.
  • Page 13 Appendix B lists the connector pin assignments. Appendix C provides a register map, for background reference only (you program the PIO-32 Series boards through the DriverLINX interface, not at the register-level). An index completes this guide.

  • Page 14: Overview

    Overview The PIO-32 Series boards are part of a family of digital input and output ® (I/O) boards designed for IBM PC series computers and compatibles. ® The software currently supplied with these boards requires the Windows 95/98/NT operating system and a compatible microprocessor (preferably a Pentium microprocessor).

  • Page 15: Important Safety Instructions

    Important Safety Instructions Each PIO-32 Series board bears a warning symbol that corresponds to the information in this section. Follow these steps when preparing to install your PIO-32 board: 1. Read the warnings in this section. 2. When installing, cabling, and wiring your board, heed the warnings marked on the board and described in this section, and follow the instructions in Sections 3 and 4.

  • Page 16: Supporting Software

    Supporting Software DriverLINX software is supplied by Keithley with the PIO-32 Series board. DriverLINX provides convenient interfaces to configure and set I/O bits without register-level programming. Most importantly, however, DriverLINX supports those programmers who wish to create custom applications using Visual C/C++, Visual Basic, or Delphi.

  • Page 17: Accessories

    C-3200 cables are 30 inches long; longer cables are available, C-32NN, where NN is the number of feet added to the standard cable. You can use STPs and cables to connect applications to the PIO-32 Series boards. An STP-37/FC accessory is available that combines a 37-D...

  • Page 18: Functional Description

    Functional Description This section describes the general layout of the PIO-32 Series boards and provides schematics of the typical input and output circuits. The PIO-32 Series boards are channel-to-channel isolated and handle digital voltages in a broader range than standard TTL levels. Optional accessories for the board include screw terminal panels (STPs) and the C-3200 cables.

  • Page 19: Input Circuitry

    Input Circuitry The PIO-32I/O has 16 digital input channels and uses the J1 ribbon header (channels 0 to 15). The PIO-32IN has 32 digital input channels and uses the J1 and J2 ribbon headers (channels 0 to 31). Figure 2-2 shows each input channel schematically.

  • Page 20: Output Circuitry

    Output Circuitry The PIO-32I/O has 16 digital output channels and uses the J2 ribbon header (channels 16 to 31). The PIO-32OUT has 32 digital output channels and uses the J1 and J2 ribbon headers (channels 0 to 31). Figure 2-3 shows the output channels schematically. The output channels are reed relays (form A) rated to 10W at 0.75A or 30V RMS, 42.4V peak, or 60VDC maximum (resistive).

  • Page 21: Setup And Installation

    Overview This section describes the following: Inventorying installation resources. Installing the DriverLINX software needed to operate your PIO-32 board. Configuring the installation in software. Unpacking and inspecting the board, setting the base address of the board, and then installing the board in your computer.

  • Page 22: Inventorying Required Installation Resources

    3. Inventory your computer’s resources already allocated to other installed devices. 4. Determine whether your computer has sufficient resources for your PIO-32 board. 5. Determine whether your PIO-32 board can use your computer’s free resources. The DriverLINX Installation and Configuration Guide, Section 1, Note: amplifies the inventory process in checklist items 1-5.

  • Page 23: Installing Driverlinx Software And Documentation

    Installing DriverLINX Software and Documentation Even if DriverLINX versions other than the PIO Series version are Note: already installed on your system, you must also install the PIO Series DriverLINX version. In the process, some DriverLINX capabilities shared by all boards may be upgraded (test utilities, for example). This section discusses installation of drivers, interfaces, and documentation.
  • Page 24 4. If you do not plan to develop custom application software for your PIO-32 Series board, then skip to Step 5. If you do plan to develop custom application software, you must install DriverLINX interfaces before writing the software. Install them now by clicking Install Interfaces and following the series of on-screen instructions.
  • Page 25 Configuration. c. Under Configuration click Hardware References. A list of documents appears. d. In the list of documents, click Keithley PIO Series. Acrobat Reader opens and the manual entitled Using DriverLINX with Your Hardware—Keithley PIO Series appears. e. Print the following section from the Using DriverLINX with Your Hardware—Keithley PIO Series manual: “Configuring the...

  • Page 26: Configuring Your Installation

    Configuring Your Installation 1. Locate and briefly review the manual section, “Configuring the PIO Series,” that you printed earlier during step 9 of “Installing DriverLINX Software and Documentation.” Reviewing this section will help prepare you to input information and select options when configuring your installation.

  • Page 27: Preparing And Installing Your Board

    Handle the board using the mounting bracket. Do not touch the circuit traces or connector contacts when handling the board. Unpacking the Board To prevent any damage to your PIO-32 Series board, perform the following steps when unpacking the board: 1. Remove the wrapped PIO-32 Series board from its outer shipping carton.

  • Page 28: Setting The Base Address

    Series manual, which you printed in step 9 of “Installing the DriverLINX Software.” The base address is the only item you need to set on the PIO-32 Series boards. The PIO-32 Series boards normally use a block of eight I/O addresses.

  • Page 29: Installing The Board

    Live voltages can still be present on the board even when the computer is turned off. To protect you and the circuit, Keithley provides covers with the PIO-32 Series boards. Though you can remove the covers to service the PIO-32 Series boards, do not use these boards with the covers removed! In addition, disconnect all cables when servicing these boards.
  • Page 30 To install the board, perform the following steps: 1. Turn power to the computer and all attached equipment OFF. 2. Remove the computer chassis cover. 3. Select an available slot appropriate to the length of the board. 4. Loosen and remove the screw at the top of the blank adapter plate, and then slide the plate up and out to remove.

  • Page 31: Checking Your Installation

    DriverLINX, verifies that DriverLINX and the board are installed and configured satisfactorily. You can also test the functions of the PIO-32 board, without needing to write an application program, by connecting appropriate digital signals and observing the responses with the DriverLINX AIO Panel.

  • Page 32: Figure 3-2 An Aio Panel Example

    c. Click on the AIO Panel entry. The Analog I/O Panel should appear, similar to the example in Figure 3-2. (If you have other DriverLINX devices installed in addition to the digital input/output card you are testing, they will also be listed. In that case, select the desired digital I/O card and the proper device number before proceeding.) Figure 3-2.

  • Page 33: Figure 3-3 Dio Channel Tab Example

    2. On the AIO Control Panel, click the DIO tab. Figure 3-3. DIO channel tab example 3-13...
  • Page 34 The on-screen digital I/O controller works as follows: Note: Channels 0 to 15 refer to the 8-bit general-purpose registers of your digital input-output card. (Depending on which card is used, the number of valid 8-bit registers will vary.) Bits displayed on the Digital Input Panel and the Digital Output Panel are numbered 0-7 for every channel.

  • Page 35: Inputs And Outputs

    3. Under Digital I/O Configuration Panel, configure channels as shown in Figure 3-4. (Actual channels available will vary according to your hardware.) KEITHLEY Digital I/O Configuration Panel Channel Configuration Input Output Figure 3-4. Configuring the digital I/O channels as inputs and outputs...

  • Page 36: Output Set Test

    6. In the Digital Input Panel under Channels, click on a channel to select it and display the logical state of its input lines. Output Set Test The output set test checks whether logic levels measured at all output pins agree with output bit patterns set by software, using a DriverLINX graphical interface (AIO Panel).

  • Page 37: Figure 3-6 An Aio Panel Example

    6. Start the AIO Panel as follows: a. In the Start menu, click Programs. b. Find the DriverLINX ➧ Test Panels folder, under which you should find the AIO Panel entry. c. Click on the AIO Panel entry. The Analog I/O Panel should appear, similar to the example in Figure 3-6.

  • Page 38: Inputs And Outputs

    “I/O Bit Tests” of this section. 8. Under Digital I/O Configuration Panel, configure the output channels to be tested as shown in Figure 3-7. (Actual output channels will vary according to your hardware.) KEITHLEY Digital I/O Configuration Panel Channel Configuration Input Output Figure 3-7.
  • Page 39 Note: compatible outputs. For boards with relay outputs (REL-16, PDISO-8, and PIO-32) the output will be a relay contact closure. For boards with open collector outputs (PIO-HV) use a pull up resistor to an appropriate voltage to detect output state. Refer to the hardware description in this user’s guide for more details on the output’s electrical specification.

  • Page 40: Pattern B

    Note: compatible outputs. For boards with relay outputs (REL-16, PDISO-8, and PIO-32) the output will be a relay contact closure. For boards with open collector outputs (PIO-HV) use a pull up resistor to an appropriate voltage to detect output state. Refer to the hardware description in this user’s guide for more details on the output’s electrical specification.

  • Page 41: Input Read Test

    If the bit patterns set on the AIO Panel do agree with the logic levels measured at the I/O terminals, and you have performed an output set test for all ports, the board is functioning properly. 17. Repeat steps 13, 14, and 15 for additional output channels. Input Read Test A similar test of input circuitry can be performed by applying an input signal of suitable type to each input line and verifying that the appropriate...

  • Page 42: Cabling And Wiring

    Do not perform these procedures unless you are qualified to do so. After installing your PIO-32 Series boards, you can attach accessories and wire the appropriate signals to the board. This section includes the following information about cabling and wiring the PIO-32 Series boards:...

  • Page 43: Optional Cables

    42.4V peak, or 60VDC maximum. Use at higher voltages may result in insulation breakdown and shock hazard. To connect the PIO-32 Series boards to screw terminal panel accessories or other equipment, you need additional cables. You have the option of providing your own cables or purchasing two C-3200/C-32NN cables.

  • Page 44: Stp-37/Fc Screw Terminal Panel

    60VDC maximum. Use at higher voltages may result in shock hazard. Using the screw terminals on the STP-37/FC, you can easily connect your applications to the PIO-32 Series boards with your own cables or with the optional C-3200/C-32NN cables. Figure 4-2 shows the PIO-32 Series board cabled to two STP-37/FC screw terminal panels.

  • Page 45: Figure 4-3 Stp-37/Fc Mounting Holes

    4.79 in. 0.20 in. 4.400 in. 0.81 1.250 pin 1 mounting holes mounting holes (0.125 in. DIA) (0.125 in. DIA) 2.84 in. pin 1 for rubber feet (4 holes) Figure 4-3. STP-37/FC Mounting Holes Cabling and Wiring...

  • Page 46: Typical Digital I/O Wiring

    Typical Digital I/O Wiring This section provides a typical non-TTL digital input wiring example for the PIO-32IN board and a typical digital output control wiring example for the PIO-32OUT board. In the digital input example shown in Figure 4-4, the PIO-32IN board monitors the presence of non-TTL signals.

  • Page 47: Figure 4-5 Typical Digital Output Control

    In the digital output example shown in Figure 4-5, the PIO-32OUT board is used to control the on and off state of a device. The polarity does not matter in this example. LOAD Positive (+) Power PIO-32OUT Supply Negative (-) Figure 4-5.

  • Page 48: Figure 4-6 Pin Assignments For The C-3200 Cable 37-D Connector, J1 Signals

    37-D Cable Connector, J1 Signals Pin 19 Pin 37 Pin 18 Pin 36 Pin 17 Pin 35 Pin 16 Pin 34 Pin 15 Pin 33 Pin 14 Pin 32 Pin 13 Pin 31 Pin 12 Pin 30 P12N Pin 11 Pin 29 P11N P12P...

  • Page 49: Figure 4-7 Pin Assignments For The C-3200 Cable 37-D Connector, J2 Signals

    37-D Cable Connector, J2 Signals P16N Pin 19 Pin 37 P23N P16P Pin 18 Pin 36 P23P P17N Pin 17 Pin 35 P22N P17P Pin 16 Pin 34 P22P P18N Pin 15 Pin 33 P21N P18P Pin 14 Pin 32 P21P P19N Pin 13...

  • Page 50: Figure 4-8 Pin Assignments For 40-Pin Ribbon Header, J1 Signals

    40-Pin Ribbon Header, J1 Signals Pin 40 Pin 39 Pin 38 Pin 37 Pin 36 Pin 35 Pin 34 Pin 33 Pin 32 Pin 31 Pin 30 Pin 29 Pin 28 Pin 27 Pin 25 Pin 26 Pin 23 Pin 24 P12N Pin 21 Pin 22...

  • Page 51: Figure 4-9 Pin Assignments For The 40-Pin Ribbon Header, J2 Signals

    40-Pin Ribbon Header, J2 Signals Pin 40 Pin 39 Pin 38 P16N Pin 37 Pin 36 P23N P16P Pin 35 P17N Pin 33 Pin 34 P23P Pin 32 P22N P17P Pin 31 P18N Pin 29 Pin 30 P22P P18P Pin 27 Pin 28 P21N Pin 26...
  • Page 52 Programming You do not program the registers of your PIO-32 Series board directly through Windows 95/98/NT. Instead, you program register changes through the application programming interface (API) of DriverLINX. DriverLINX is provided on the CD-ROM that comes with your board and should now be installed on your system.
  • Page 53 6. Click on the wanted document or document category. Either the selected document appears or a list of documents that fit the selected category appears. 7. If a list appears, click on the title of the document that you want. The desired document appears.

  • Page 54: Problem Isolation

    Do not perform these procedures unless you are qualified to do so. If your PIO-32 Series board is not operating properly, use the information in this section to help you isolate the problem. If the problem appears serious enough to require technical support, refer to page 6-6 for information on how to contact an applications engineer.

  • Page 55: Table 6-1 Troubleshooting Information

    The board is incorrectly aligned Check installation. in the accessory slot. The board is damaged. Contact the Keithley Applications Engineering Department; see page 6-6. Intermittent The most common cause of this Reduce I/O bus speed to a maximum of...
  • Page 56 Check wiring to screw terminal. Another system resource is using Reconfigure the base address of the the specified base address. PIO-32 Series board; refer to page 3-8 for more information. Check the I/O assignments of other system resources and reconfigure, if necessary.

  • Page 57: Testing The Pio-32 Series Board And Host Computer

    Testing the PIO-32 Series Board and Host Computer To isolate the problem to the PIO-32 Series board or to the host computer, perform the following steps. Do not connect voltages greater than 30V RMS, 42.4V peak, Warning: or 60VDC to any input or output on this board.

  • Page 58: Testing The Accessory Slot And I/O Connections

    2. Apply computer power and check operation with the functional PIO-32 Series board in place. This test checks the computer accessory slot. If you are using more than one PIO-32 Series board, check the other slots you are using. 3. If the accessory slots are functional, check the I/O connections.

  • Page 59: Technical Support

    Technical Support Before returning any equipment for repair, call the Keithley Hardware Applications Engineering Department at: 1-888-KEITHLEY Monday - Friday, 8:00 a.m. - 5:00 p.m., Eastern Time An applications engineer will help you diagnose and resolve your problem over the telephone. Please make sure that you have the following...
  • Page 60 If you are submitting your equipment for repair under warranty, Notes: you must include the invoice number and date of purchase. To enable Keithley to respond as quickly as possible, you must include the RMA number on the outside of the package.

  • Page 61: Specifications

    Specifications This appendix provides a table of the specifications for the PIO-32 Series boards. In Table A-1, the abbreviation N/A means not applicable. Table A-1. PIO-32 Series Specifications Feature Attribute PIO-32I/O PIO-32IN PIO-32OUT Digital Channels Output Contact Type Rhodium plated...
  • Page 62 Table A-1. PIO-32 Series Specifications (cont.) Feature Attribute PIO-32I/O PIO-32IN PIO-32OUT Digital Input Channels Type Optoisolator Optoisolator Input 2.0kΩ, 1/2W 2.0kΩ, 1/2W Resistor Input High 3.5VDC, 1.25mA 3.5VDC, 1.25mA (Min.) Input High 28VDC, 15mA 28VDC, 15mA (Max.) Input Low 0.8VDC or open 0.8VDC or open...

  • Page 63: Connector Pin Assignments

    This appendix provides a table of the connector pin assignments for the 37-D and 40-pin ribbon connectors and of the signals for the J1 and J2 connectors of the PIO-32 Series boards. In addition, this appendix contains the same pin assignment figures for these connectors as shown in Section 4.

  • Page 64: Table B-1 37-D And 40-Pin Signals For Connectors

    Table B-1. 37-D and 40-Pin Signals for Connectors J1 and J2 37-D Ribbon PIO-32 J1 PIO-32 J2 37-D Ribbon PIO-32 J1 PIO-32 J2 Pins Pins Signals Signals Pins Pins Signals Signals GROUND GROUND P24P P15P P31P P24N P15N P31N P25P...

  • Page 65: Figure B-1 Pin Assignments For The C-3200 Cable 37-D Connector, J1 Signals

    Figure B-1 shows the pin assignments for the 37-D cable connector, J1 signals. Figure B-2 on page B-4 shows the pin assignments for the 37-D cable connector, J2 signals. Figure B-3 on page B-5 shows the pin assignments for the 40-in ribbon header, J1 signals. Figure B-4 on page B-6 shows the pin assignments for the 40-pin ribbon header, J2 signals.

  • Page 66: Connector Pin Assignments

    C-3200 Cable 37-D Cable Connector, J2 Signals P16N Pin 19 Pin 37 P23N P16P Pin 18 Pin 36 P23P P17N Pin 17 Pin 35 P22N P17P Pin 16 Pin 34 P22P P18N Pin 15 Pin 33 P21N P18P Pin 14 Pin 32 P21P P19N...

  • Page 67: Figure B-3 Pin Assignments For 40-Pin Ribbon Header Connector, J1 Signals

    40-Pin Ribbon Header Connector, J1 Signals Pin 40 Pin 39 Pin 38 Pin 37 Pin 36 Pin 35 Pin 34 Pin 33 Pin 32 Pin 31 Pin 30 Pin 29 Pin 28 Pin 27 Pin 25 Pin 26 Pin 23 Pin 24 P12N Pin 21...

  • Page 68: Figure B-4 Pin Assignments For 40-Pin Ribbon Header Connector, J2 Signals

    40-Pin Ribbon Header Connector, J2 Signals Pin 40 Pin 39 Pin 38 P16N Pin 37 Pin 36 P23N P16P Pin 35 P17N Pin 33 Pin 34 P23P Pin 32 P22N P17P Pin 31 P18N Pin 29 Pin 30 P22P P18P Pin 27 Pin 28 P21N...

  • Page 69: Register Maps

    find it on the CD-ROM in the X:\DrvLINX4\Docs and X:\DrvLINX4\Docs\Notes folders, where X is the drive letter of the CD-ROM drive.) The PIO-32 Series boards contain four 8-bit registers. To maintain compatibility with the PIO-12 products, which use an 8255 Programmable Peripheral Interface integrated circuit, the four registers are at base addresses +0h, +1h, +4h, and +5h.

  • Page 70: Table C-1 Pio-32 Series Register Map Summary

    Table C-1 summarizes the PIO-32 Series register maps. Table C-1. PIO-32 Series Register Map Summary Base 8255 Port PIO-32IN PIO-32OUT PIO-32I/O Port A Read Readback/Write Read Port B Read Readback/Write Read Port C (not used) Control Register (fixed) Port A...

  • Page 71: Table C-2 Pio-32I/O Register Map

    Table C-2. PIO-32I/O Register Map BA Write Bits Read Bits Not Used Input Port +0h - Not Used Input Port +1h - P15 P14 P13 P12 P11 P10 P9 Output Port Readback Port +4h P23 P22 P21 P20 P19 P18 P17 P16 P23 P22 P21 P20 P19 P18 P17 P16 Output Port Readback Port +5h P31 P30 P29 P28 P27 P26 P25 P24 P31 P30 P29 P28 P27 P26 P25 P24...

  • Page 72: Table C-4 Pio-32Out Register Map

    Table C-4. PIO-32OUT Register Map BA Write Bits Read Bits Output Port Readback Port +0h P7 Output Port Readback Port +1h P15 P14 P13 P12 P11 P10 P9 P15 P14 P13 P12 P11 P10 P9 Output Port Readback Port +4h P23 P22 P21 P20 P19 P18 P17 P16 P23 P22 P21 P20 P19 P18 P17 P16 Output Port Readback Port +5h P31 P30 P29 P28 P27 P26 P25 P24 P31 P30 P29 P28 P27 P26 P25 P24...

  • Page 73: Programming

    Numerics connecting a screw terminal panel connections 37-D cable connector, J2 signals connector pin assignments 4-6, 40-pin ribbon header, J1 signals connectors 40-pin ribbon header, J2 signals 4-10, covers for boards 1-2, 3-9, 40-pin ribbon header/cable connector, J1 signals 8255 Programmable Peripheral Interface integrated circuit default base address digital input...
  • Page 74 3-16 important safety instructions input circuitry input current limit input level pin assignments 4-6, input voltage limit PIO-12 boards installation PIO-32 Series cable checking 3-11 PIO-32I/O configuring features resource inventory input circuitry installing output circuitry board...
  • Page 75 specifications STP See screw terminal panel registers STP-37/FC screw terminal panel 1-4, maps supporting software programming switch block, base address relay connections resources, installation, inventory returning equipment RMA number routing signals technical support 37-D cable connector, J1 signals 37-D cable connector, J2 signals troubleshooting typical digital I/O wiring safety instructions...
  • Page 76 Specifications are subject to change without notice. All Keithley trademarks and trade names are the property of Keithley Instruments, Inc. All other trademarks and trade names are the property of their respective companies. Keithley Instruments, Inc. 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 1-888-KEITHLEY (534-8453) •...

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