MC PCIe-DIO24 User Manual

PCIe-DIO24

Digital Input/Output

User's Guide

Document Revision 1, October, 2008

© Copyright 2008, Measurement Computing Corporation

HM PCIe-DIO24.docx

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3

Trademark and Copyright Information

TracerDAQ, Universal Library, Harsh Environment Warranty, Measurement Computing Corporation, and the Measurement
Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation.

Windows, Microsoft, and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation
LabVIEW is a trademark of National Instruments.
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All other trademarks are the property of their respective owners.
Information furnished by Measurement Computing Corporation is believed to be accurate and reliable. However, no

responsibility is assumed by Measurement Computing Corporation neither for its use; nor for any infringements of patents or
other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or
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Computing Corporation.

Notice

Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use
in life support systems and/or devices without prior written consent from Measurement Computing Corporation.
Life support devices/systems are devices or systems which, a) are intended for surgical implantation into the body,
or b) support or sustain life and whose failure to perform can be reasonably expected to result in injury.
Measurement Computing Corporation products are not designed with the components required, and are not subject
to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people.

4

Table of Contents

Preface

About this User's Guide ....................................................................................................................... 6

What you will learn from this user's guide ......................................................................................................... 6

Conventions in this user's guide ......................................................................................................................... 6

Where to find more information ......................................................................................................................... 6

Register-level programming ............................................................................................................................... 7

Chapter 1

Introducing the PCIe-DIO24 ................................................................................................................. 8

Overview: PCIe-DIO24 features ........................................................................................................................ 8

Software features ................................................................................................................................................ 8

PCIe-DIO24 block diagram ................................................................................................................................ 9

Chapter 2

Installing the PCIe-DIO24 ................................................................................................................... 10

What comes with your PCIe-DIO24 shipment? ............................................................................................... 10

Hardware .........................................................................................................................................................................10

Additional documentation ................................................................................................................................................10

Optional components .......................................................................................................................................................10

Unpacking the PCIe-DIO24 ............................................................................................................................. 11

Installing the software ...................................................................................................................................... 11

Installing the hardware ..................................................................................................................................... 11

Connecting the board for I/O operations .......................................................................................................... 12

Main I/O connector ..........................................................................................................................................................12

Connector pin out .............................................................................................................................................................12

Cabling .............................................................................................................................................................................13

Field wiring and signal termination .................................................................................................................................13

Chapter 3

Functional Details ............................................................................................................................... 14

82C55 emulation .............................................................................................................................................. 14

Replacing a fuse ............................................................................................................................................... 14

Fuse specifications ...........................................................................................................................................................14

Logic level switch ............................................................................................................................................. 14

Chapter 4

Specifications ...................................................................................................................................... 15

Digital input / output ......................................................................................................................................... 15

Power Consumption ......................................................................................................................................... 15

Environmental .................................................................................................................................................. 15

Mechanical ....................................................................................................................................................... 16

General ............................................................................................................................................................. 16

Main connector and pin out .............................................................................................................................. 16

5

Preface

About this User's Guide

What you will learn from this user's guide

This user's guide explains how to install, configure, and use the PCIe-DIO24 so that you get the most out of its
digital I/O features.

This user's guide also refers you to related documents available on our web site, and to technical support
resources.

Conventions in this user's guide

For more information on …

Text presented in a box signifies additional information and helpful hints related to the subject matter you are
reading.

Caution! Shaded caution statements present information to help you avoid injuring yourself and others,

damaging your hardware, or losing your data.

< : > Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned

to registers, bit settings, etc.

bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For

example:

1. Insert the disk or CD and click the OK button.

italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For

example:
The InstaCal installation procedure is explained in the Quick Start Guide.
Never touch the exposed pins or circuit connections on the board.

Where to find more information

The following electronic documents provide helpful information relevant to the operation of the PCIe-DIO24.
 MCC's Specifications: PCIe-DIO24 (the PDF version of the Specifications chapter in this guide) is

available on our web site at www.mccdaq.com/pdfs/PCIe-DIO24.pdf.

 MCC's Quick Start Guide is available on our web site at

 MCC's Guide to Signal Connections is available on our web site at

www.mccdaq.com/signals/signals.pdf.

 MCC's Universal Library User's Guide is available on our web site at

 MCC's Universal Library Function Reference is available on our web site at

 MCC's Universal Library for LabVIEW™ User’s Guide is available on our web site at

PCIe-DIO24 User's Guide (this document) is also available on our web site at

6

PCIe-DIO24 User's Guide About this User's Guide

Register-level programming

If you need to program at the register level in your application, you can find more information in the Register
Map for the PCIe-DIO24. This document is available at www.mccdaq.com/registermaps/RegMapPCIe-

DIO24.pdf.

Only experienced programmers should try register-level programming.

7

Chapter 1

Introducing the PCIe-DIO24

Overview: PCIe-DIO24 features

This manual explains how to install and use the PCIe-DIO24 board. The PCIe-DIO24 is a digital I/O board
designed for the PCI Express (PCIe) bus.

The PCIe-DIO24 provides 24 lines of digital I/O with selectable 3.3 V and 5 V logic levels. The 24 DIO lines
are organized into three groups of 8-bits each (Port A, Port B, and Port C). Port C can be further divided into
two four-bit ports (Port C-HI and Port C-LO). The direction of each port is independently configurable with
software for either input or output. Digital outputs are HC logic and can source and sink 2.5 mA.

The PCIe-DIO24 has a 10 k resistor network associated with each digital port. You can configure each port for
pull-up or pull-down with software. On power up and reset the configuration of each port is read from
EEPROM. The board is shipped with each port configured in the pull-up state.

The PCIe-DIO24 emulates the 82C55 Programmable Peripheral Interface (PPI) chip. Measurement
Computing's Universal Library and Windows driver supports mode 0 only.

Digital I/O lines are accessible through a 37-pin D-type connector. The board has two individual slow blow
fuses rated at 0.375 amp to protect the +V

Software programs written with the Universal Library for the USB-DIO24/37, PCI-DIO24 and CIO-DIO24
devices are fully compatible with the PCIe-DIO24.

and +12V outputs on the connector. One spare fuse is provided.

DIO

Power is provided by the PCI Express slot. The PCIe-DIO24 board is completely plug-and-play. All board
addresses are set by the board's plug-and-play software. Board configuration is controlled by your system's
BIOS.

Software features

For information on the features of InstaCal and the other software included with your PCIe-DIO24, refer to the
Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at

Check www.mccdaq.com/download.htm for the latest software version.

8

PCIe-DIO24 User's Guide Introducing the PCIe-DIO24

Boot

EEPROM

37-pin I/O Connector

Fuse

Protection

8

8

4

4

8

PORT A

PCI-to-Local

Bus

BADR2

+

BADR3

Bus

Timing

LAD(0:7)

8

PCI Express Edge Connector

x1 Link

PCIe-to-PCI

Bridge

PCI Bus

3.3V3.3V

1.5V

Regulator

3.3V, 32-bit, 66 M Hz

+V

Regulated

DIO

Local

Address

&

Data Bus

3.3V Board Power

Interface

Decode/Status

82C55 Emulation

Logic, Control,

Complex,

Programmable

Logic Device

(CPLD)

User

3.3/5V
I/O Switch

5V

(VDD)

3.3 V

PORT A

Buffering

3.3/5V

Direction CTR

PORT B

Buffering

PORT CL
Buffering

PORT CH
Buffering

PORT B

3.3/5V

Direction CTR

8

PORT CL

3.3/5V

Direction CTR

4

PORT CH

3.3/5V

Direction CTR

4

24

4

Direction

Control

GND

4

EEPROM

switch

+5V (VDD)

10 k

Pull
Resistor
Network

Buffer

4

Spare Fuse
V and 12V

DIO

+V

(pin 18)

DIO

+V

DIO

(pin 20)

+12V

(pin 16)

IRQ Input
IRQ Enable

+5 (VDD)

5V

Regulator

Fuse

Protection

+12V

V

DIO

PCIe-DIO24 block diagram

PCIe-DIO24 functions are illustrated in the block diagram shown here.

Figure 1. PCIe-DIO24 functional block diagram

9

C37FF-x

C37FFS-x

Installing the PCIe-DIO24

What comes with your PCIe-DIO24 shipment?

The following items are shipped with the PCIe-DIO24.

Hardware

 PCIe-DIO24

Chapter 2

Additional documentation

In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at

the software you received with your PCIe-DIO24 and information regarding installation of that software. Please
read this booklet completely before installing any software or hardware.

Optional components

 Cables

10

PCIe-DIO24 User's Guide Installing the PCIe-DIO24

 Signal termination and conditioning accessories

Measurement Computing provides signal termination products for use with the PCIe-DIO24. Refer to the
section "Field wiring and signal termination" on page 13 for compatible accessory products.

Unpacking the PCIe-DIO24

As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the PCIe-DIO24 from its packaging, ground yourself using a wrist strap or by
simply touching the computer chassis or other grounded object to eliminate any stored static charge.

If your PCIe-DIO24 is damaged, notify Measurement Computing Corporation immediately by phone, fax, or e­mail.

 Phone: [phone] and follow the instructions for reaching Tech Support.
 Fax: [phone] to the attention of Tech Support
 Email: [e-mail]

For international customers, contact your local distributor where you purchased the PCIe-DIO24.

Installing the software

Install the software included with your board before you install the hardware. Installing the software first
ensures that the information required for proper board detection is installed and available at boot up.

Quick-Start.pdf.

Installing the hardware

The PCIe-DIO24 is completely plug-and-play. Configuration is controlled by your system's BIOS. To install
your board, follow the steps below.

Install the MCC DAQ software before you install your board

The driver needed to run your board is installed with the MCC DAQ software. Therefore, you need to install the
MCC DAQ software before you install your board. Refer to the Quick Start Guide for instructions on installing
the software.

1. Power off and unplug the computer, and remove the cover to expose the expansion slots.

2. Touch any metal part of the computer to discharge static electricity that may be present. Static electricity

can damage the board.

3. Insert the PCIe-DIO24 into an unused x1 PCIe expansion slot.

The PCIe-DIO24 is designed to install into an x1 slot. However, you can also install the board into an
unused x4, x8, or x16 PCIe slot.

Caution! Ensure that you install the board into a PCIe slot. Installing the PCIe-DIO24 into a non-PCIe slot

can damage both the board and the computer’s motherboard.

4. Close your computer and turn it on.

A dialog box opens as the system loads, indicating that new hardware has been detected. The information
file for this board should have already been loaded onto your PC when you installed the Measurement
Computing Data Acquisition Software CD supplied with your board, and should be detected automatically
by Windows. If you have not installed this software, cancel the dialog and install it now.

5. Run InstaCal to test your installation and to configure the pull direction of the digital port resistors.

Refer to the Quick Start Guide that came with your board for information on how to initially set up
InstaCal.

11

PCIe-DIO24 User's Guide Installing the PCIe-DIO24

Connector type

37-pin D-type

Compatible cables

C37FF-x unshielded ribbon cable. x = length in feet. (see Figure 3)
C37FFS-x cable shielded round cable. x = length in feet. (see Figure 4)

Compatible accessory products
(with the C37FF-x or C37FFS-x cable)

SCB-37
CIO-MINI37
CIO-MINI37-VERT
CIO-ERB08

CIO-SERB08
CIO-ERB24
SSR-RACK08
SSR-RACK24

+V * 20

GND 21
PORT C7 22
PORT C6 23
PORT C5 24
PORT C4 25
PORT C3 26
PORT C2 27
PORT C1 28
PORT C0 29

PORT A7 30
PORT A6 31
PORT A5 32
PORT A4 33
PORT A3 34
PORT A2 35
PORT A1 36
PORT A0 37

DIO 1 IRQ INPUT

2 IRQ ENABLE
3 PORT B7
4 PORT B6
5 PORT B5
6 PORT B4
7 PORT B3
8 PORT B2
9 PORT B1
10 PORT B0
11 GND
12 Open
13 GND
14 Open
15 GND
16 +12V*
17 GND
18 +V *
19 GND

DIO

Logic level
switch

+5V

3V

Connecting the board for I/O operations

Main I/O connector

The table below lists the board connectors, applicable cables and compatible accessory boards.

Board connectors, cables, accessory equipment

Connector pin out

The I/O connector is a 37-pin, male D-type connector accessible from the rear of the computer through the
expansion backplate. The signals available are direct connections to the digital I/O chips as well as the
computer's internal power supplies. The logic level switch sets the logic level for either 3.3V or 5V (refer to
page 14 for switch information).

* The board has two individual slow blow fuses rated at 1 A. One fuse protects the 12V output at pin 16, and
one fuse protects both +V

outputs at pin 18 and pin 20.

DIO

Figure 2. I/O connector

12

PCIe-DIO24 User's Guide Installing the PCIe-DIO24

20

1

37

19

20

1

37

19

The red stripe

identifies pin # 1

20

1

37

19

20

1

37

19

Cabling

Figure 3. C37FF-x cable

Figure 4. C37FFS-x cable

Field wiring and signal termination

You can use the following MCC screw terminal boards and relay racks with the PCIe-DIO24 board using the
C37FF-x or C37FFS-x cable:

 SCB-37 – 37-conductor, shielded signal connection/screw terminal box that provides two independent 37-

pin connections. Details on this product are available at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=196&pf_id=1166.

 CIO-MINI37 – 4 x 4, 37-pin screw terminal board. Details on this product are available at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=102&pf_id=255.

 CIO-MINI37-VERT – 37-pin screw terminal accessory with vertical 37-pin male D connector. Details on

this product are available on our web site at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=102&pf_id=256.

 SSR-RACK24 – 24-position solid state relay rack. Details on this product are available on our web site at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=122&pf_id=1193.

 SSR-RACK08 – Eight-channel solid state relay rack. Details on this product are available on our web site

at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=122&pf_id=620

 CIO-ERB08 – Eight-channel electromechanical relay accessory for digital I/O boards. Details on this

product are available on our web site at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=123&pf_id=241.

 CIO-SERB08 – Eight Form C and ten socketed relay accessory for digital I/O boards. Details on this

product are available on our web site at

www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=123&pf_id=680.

 CIO-ERB24 – 24-channel electromechanical relay accessory for digital I/O boards. Details on this product

are available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=123&pf_id=241.

For additional information about digital interfacing…

Detailed information regarding digital interfacing is contained in MCC's Guide to Signal Connections. This
document is available on our web site at www.measurementcomputing.com/signals/signals.pdf.

13

3.3V

5V

S1

Chapter 3

Functional Details

82C55 emulation

The PCIe-DIO24 emulates the 82C55 Programmable Peripheral Interface (PPI) chip. Measurement
Computing's Universal Library and Windows driver supports mode 0 only.

Whenever the board is powered on or reset, all pins are set to high-impedance input. Based on standard TTL
functionality, these inputs typically float high, and may have enough drive current to turn on external devices.
Consequently, if you have output devices such as solid state relays, they may be switched on whenever the
computer is powered on or reset. To prevent unwanted switching, and to drive all outputs to a known state after
power on or reset, configure each port resistor with InstaCal.

Unconnected inputs float to the pull direction

Unconnected inputs will float in the pull direction that is configured for the port with InstaCal (either up/high or
down/low).

Replacing a fuse

The PCIe-DIO24 has two individual 0.375 amp slow blow fuses. One fuse is connected to the 12V output at pin
16, and is labeled F7 on the board. The second fuse is connected to both +V
is labeled F6 on the board. A spare fuse is installed on the board at location F4. All fuses are secured to the
board with clips for convenient replacement.

outputs at pin 18 and pin 20, and

DIO

A fuse will blow during operation if amperage exceeds 0.375 amp. If you need to replace a fuse, perform the
following procedure.

1. Hold the center of the blown fuse and pry it from the fuse holder clip.

2. Insert the replacement fuse into the fuse holder clip.

Fuse specifications

Refer to the information below to purchase additional fuses, if required:

 Manufacturer: LittelFuse®
 Type: 452 Series NANO
 Part number: 0452.375
 0.375 amp, 125 volts, 1.2 Ω

2®

Slo-Blo® Subminiature Surface Mount Fuse

Logic level switch

Use switch S1 to set the logic level for either 3.3V or 5V (default). The switch is located above the I/O
connector (see Figure 2 on page 12).

Figure 5. Logic level select switch

14

Digital type

82C55 Emulation

Configuration

2 banks of 8, 2 banks of 4, programmable by bank as input or output

Output

Ports A and B: 74HC245A Port C: 74HC126

Input

Ports A and B: 74HC245A Port C: 74HC125

Number of channels

24 I/O

Switch State

Board Silk Screen Reference: S1 - Default +5V

3.3 V
Output high

2.8 volts min @ -2.5 mA

Output low

0.3 volts max @ 2.5 mA

Input high

2.6 volts min, 3.6 volts absolute max

Input low

1.3 volts max, -0.5 volts absolute min

5 V
Output high

4.5 volts min @ -2.5 mA

Output low

0.3 volts max @ 2.5 mA

Input high

2.6 volts min, 5.5 volts absolute max

Input low

1.3 volts max, -0.5 volts absolute min

Power-up / reset state

Input mode (10 k impedance from pull-up or pull-down)

Pull-up/pull-down resistors

EEPROM stored - Software Programmable driven by 74ACT244 through 10 k bussed
resistor networks (shipped in the pull-up state)

Interrupt enable

External (IRQ ENABLE, active low, disabled by default through internal resistor to TTL
high) and programmable through PCI9030; 0 = disabled, 1 = enabled (default)

Interrupt sources

External source (IRQ INPUT), polarity programmable through PCI9030;
1 = active high, 0 = active low (default)

+3.3 V operating

515 mA typical

+3.3 V with 5 V I/O

520 mA typical

+V

DIO

User Output

125 mA max. @ +5V; 375 mA max. @ +3.3 V

Fuses: +V

DIO

User Output

+12 V

0452.375 - Littelfuse 0.375A NANO2® Slo-Blo® Subminiature Surface Mount Fuse

Operating temperature range

0 to 50 °C

Storage temperature range

-20 to 70 °C

Humidity

0 to 90% non-condensing

Specifications

All specifications are subject to change without notice.
Typical for 25 °C unless otherwise specified.

Digital input / output

Table 1. Digital I/O specifications

Chapter 4

Power Consumption

Table 2. Power consumption specifications

Environmental

Table 3. Environmental specifications

15

PCIe-DIO24 User's Guide Specifications

Card dimensions

167.4 mm (L) x 111.2 mm (H) x 18.72 mm (W)

6.59" (L) x 4.38" (H) x 0.74" (W)

Bus Type

PCI Express 1.1

Bus Width

x1 lane PCI Express

Connector type

37-pin D-type

Compatible cables

C37FF-x unshielded ribbon cable. x = length in feet.
C37FFS-x cable shielded round cable. x = length in feet.

Compatible accessory products (with the
C37FF-x or C37FFS-x cable)

SCB-37
CIO-MINI37
CIO-MINI37-VERT

Compatible accessory products with S1 in the
+5 V position (with the C37FF-x or C37FFS-x
cable)

CIO-ERB08
CIO-SERB08
CIO-ERB24

SSR-RACK08
SSR-RACK24

Pin

Signal Name

Pin

Signal Name

1

IRQ INPUT

20

+V

DIO

*

2

IRQ ENABLE

21

GND 3 Port B7

22

Port C7

4

Port B6

23

Port C6

5

Port B5

24

Port C5

6

Port B4

25

Port C4

7

Port B3

26

Port C3

8

Port B2

27

Port C2

9

Port B1

28

Port C1

10

Port B0

29

Port C0

11

GND

30

Port A7

12

OPEN

31

Port A6

13

GND

32

Port A5

14

OPEN

33

Port A4

15

GND

34

Port A3

16

+12V*

35

Port A2

17

GND

36

Port A1

18

+V

DIO

*

37

Port A0

19

GND

Mechanical

Table 4. Environmental specifications

General

Table 5. General specifications

Main connector and pin out

Table 6. Main connector specifications

Table 7. Main connector pin out

* Protected by slow blow fuses rated at 0.375 A. One fuse protects pin 16 (+12V), and the second fuse protects
pin 18 (+V

) and pin 20 (+V

DIO

DIO

).

16

Measurement Computing Corporation

10 Commerce Way

Suite 1008

Norton, Massachusetts 02766

[phone]

Fax: [phone]

E-mail: [e-mail]

www.mccdaq.com