PCI-DIO24H
User's Guide
24-bit, High-Output Drive, Digital I/O
January 2019. Rev 4
© Measurement Computing Corporation
PCI-DIO24H
Trademark and Copyright Information
Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement Computing logo are
either trademarks or registered trademarks of Measurement Computing Corporation. Refer to the Copyrights &
Trademarks section on mccdaq.com/legal
for more information about Measurement Computing trademarks.
Other product and company names mentioned herein are trademarks or trade names of their respective
companies.
© 2019 Measurement Computing Corporation. All rights reserved. No part of this publication may be
reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, by
photocopying, recording, or otherwise without the prior written permission of Measurement 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 that, 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.
2
Table of Contents
Preface
About this User's Guide ....................................................................................................................... 4
What you will learn from this user's guide ......................................................................................................... 4
Conventions in this user's guide ......................................................................................................................... 4
Where to find more information ......................................................................................................................... 4
Register map ..................................................................................................................................................................... 4
Chapter 1
Introducing the PCI-DIO24H ................................................................................................................. 5
Functional block diagram ................................................................................................................................... 5
Chapter 2
Installing the PCI-DIO24H ..................................................................................................................... 6
Unpacking........................................................................................................................................................... 6
Installing the software ........................................................................................................................................ 6
Installing the hardware ....................................................................................................................................... 6
Configuring the hardware ................................................................................................................................... 6
Signal connections .............................................................................................................................................. 7
Connector pinout............................................................................................................................................................... 7
Cabling.............................................................................................................................................................................. 8
Field wiring and signal termination .................................................................................................................................. 8
Chapter 3
Functional Details ................................................................................................................................. 9
DIO signals ......................................................................................................................................................... 9
Signal level control ............................................................................................................................................. 9
Chapter 4
Specifications ...................................................................................................................................... 11
Power consumption .......................................................................................................................................... 11
Digital I/O ......................................................................................................................................................... 11
Environmental .................................................................................................................................................. 11
Signal connector ............................................................................................................................................... 12
Declaration of Conformity ................................................................................................................ 13
3
Preface
About this User's Guide
What you will learn from this user's guide
This user's guide describes the Measurement Computing PCI-DIO24H data acquisition device and lists device
specifications.
Conventions in this user's guide
For more information
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.
Bold text is used for the names of objects on a screen, such as buttons, text boxes, and checkboxes.
Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase.
Where to find more information
Additional information about the PCI-DIO24H is available on our website at www.mccdaq.com. You can also
contact Measurement Computing Corporation by phone, fax, or email with specific questions.
Knowledgebase: kb.mccdaq.com
Tech support form: www.mccdaq.com/support/support_form.aspx
Email: techsupport@mccdaq.com
Phone: 508-946-5100 and follow the instructions for reaching Tech Support
For international customers, contact your local distributor. Refer to the International Distributors section on our
website at www.mccdaq.com/International
For additional information relevant to the operation of your hardware, refer to the Documents subdirectory
where you installed the MCC DAQ software (C:\Program Files\Measurement Computing\DAQ by default), or
search for your device on our website at www.mccdaq.com
Register map
If you need to program at the register level in your application, refer to the Register Map for the PCI-DIO24,
PCI-DIO24H, PCI-DIO24/S, and PCI-DIO24/LP. This document is available on our website at
www.mccdaq.com/registermaps/RegMapPCI-DIO24X.pdf
.
.
.
4
Chapter 1
PCI
Controller
BADR1
Boot
EEPROM
Control
Registers
Decode/Status
Bus
Timing
Controller FPGA and logic
Local Bus
PCI BUS (5V, 32-bit, 33 MHZ)
Control
Bus
Interrupt
Control
+5V
+12V
-12V
BADR2
Interrupt
PORT A
C
ontrol
PORT A (7:0)
High Drive
82C55 Mode 0 Emulation
PORT B (7:0)
PORT CH (3:0)
PORT B
PORT CH
PORT CL
PORT CL (3:0)
IRQ INPUT
IRQ ENABLE
37
-Pin I/
O Conn
ector
Introducing the PCI-DIO24H
This manual explains how to install and use the PCI-DIO24H board. The PCI-DIO24H is a high output drive,
logic-level digital I/O board designed for the PCI-bus.
The PCI-DIO24H provides 24-bits of digital I/O in three eight-bit ports (Port A, Port B, and Port C) based on an
82C55 mode 0 emulation. Port C can be further divided into two four-bit ports (Port C-HI and Port C-LO). You
can configure each port independently for either input or output.
All digital inputs are LSTTL. The output signals are buffered high output drive TTL. The digital output drivers
are 74S244 chips that can sink 64 mA and source 15 mA. The input buffers are 74LS373 chips and have
standard high input impedance of the 74LS series devices.
All 24 I/O lines are accessible through the board's 37-pin connector.
82C55 Mode 0 programming supported
The PCI-DIO24H supports 82C55 Mode 0 programming only.
Functional block diagram
PCI-DIO24H functions are illustrated in the block diagram shown here.
Figure 1. Functional block diagram
5
Chapter 2
Installing the PCI-DIO24H
Unpacking
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the device 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.
Contact us immediately if any components are missing or damaged.
Installing the software
Refer to the MCC DAQ Quick Start and the PCI-DIO24H product page on our website for information about
the software supported by the PCI-DIO24H.
Install the software before you install your device
The driver needed to run the PCI-DIO24H is installed with the software. Therefore, you need to install the
software package you plan to use before you install the hardware.
Installing the hardware
The PCI-DIO24H board is completely plug-and-play, with no switches or jumpers to set. Configuration is
controlled by your system's BIOS. Perform the following procedure to install your board.
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.
1. Turn your computer off, open it up, and insert your board into an available PCI slot.
2. Close your computer and turn it on.
When connected for the first time, a
the device. When the dialog closes, the installation is complete. If you have not installed the MCC DAQ
software, cancel the dialog and install it now.
3. To test your installation and configure your board, run the InstaCal utility installed with MCC DAQ
software. Refer to the Quick Start Guide for information on how to initially set up and load InstaCal.
Found New Hardware dialog opens when the operating system detects
Configuring the hardware
All hardware configuration options on the PCI-DIO24H are software controlled.
6
PCI-DIO24H User's Guide Installing the PCI-DIO24H
Connector type
37-pin D-type
Compatible cables
C37FF-x unshielded ribbon cable. x = length in feet. (see Figure 3)
C37FFS-x shielded round cable. x = length in feet. (see Figure 4)
Compatible accessory products (with the
SCB-37
SSR-RACK24
Signal connections
The table below lists the board connector type, applicable cables, and compatible products for the PCI-DIO24H.
Board connectors, cables, and accessory equipment
C37FF-x or C37FFS-x cable)
CIO-MINI37
CIO-MINI37-VERT
CIO-ERB08
CIO-SERB08
CIO-ERB24
CIO-SPADE50
SSR-RACK08
Connector pinout
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 pin out is identical to the CIO-DIO24, except that –5 VDC is not
brought out. The PCI-DIO24H board's I/O connector is shown in Figure 2.
Figure 2. PCI-DIO24H board connector pinout
Information on signal connections
General information regarding signal connection and configuration is available in the Guide to DAQ Signal
Connections on our website at www.mccdaq.com/support/DAQ-Signal-Connections.aspx.
7
PCI-DIO24H User's Guide Installing the PCI-DIO24H
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 connect the PCI-DIO24H to the following termination boards 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.
CIO-MINI37 — 4 x 4, 37-pin screw terminal board.
CIO-MINI37-VERT
CIO-SPADE50
Details on these products are available on our website.
The following relay racks and accessory boards can be used with the PCI-DIO24H:
SSR-RACK24 — 24-position solid state relay rack.
SSR-RACK08 — Eight-channel solid state relay rack.
CIO-ERB08 — Eight-channel electromechanical relay accessory for digital I/O boards.
CIO-SERB08 — Eight Form C and ten socketed relay accessory for digital I/O boards.
CIO-ERB24 — 24-channel electromechanical relay accessory for digital I/O boards.
Details on these products are available on our website.
— 37-pin screw terminal accessory with vertical 37-pin male D connector.
— 16" X 4" termination panel which mates with both 37-pin and 50-pin connectors.
8
2.2KOhm SIP
Dot
(LO or HI)
I/O Lines
Chapter 3
Functional Details
DIO signals
The PCI-DIO24H signals are buffered (high output drive) TTL. Voltages and currents associated with external
devices are usually far greater than can be supplied from a PCI-DIO24H.
Caution! Direct connections to high-current/high voltage devices will damage the board.
The emulated 82C55 mode 0 circuit initializes all ports as inputs on power-up and reset. The state of the digital
I/O lines is not defined as either logic high or logic low when in input mode. Input devices connected to the
PCI-DIO24 board may detect either a high or a low and therefore may be turned off or on at power-up.
Signal level control
All I/O bits are set to a high impedance input mode on power up and reset. To prevent unwanted signal levels,
and to drive all inputs on the device you are controlling to a known state after power up or reset, install pull-up
or pull-down resistors.
A pull-up resistor pulls all digital pins up to +5 V (high logic level). A pull-down resistor pulls all digital pins
down to 0 V (low logic level).
The PCI-DIO24H has open locations where you can install a 2.2 KΩ, eight-resistor single inline package (SIP)
resistor network for each port. The SIP is made up of eight 2.2 KΩ resistors. One side of each resistor is
connected to a single common point and brought out to a pin. The common line is marked with a dot or line at
one end of the SIP. The remaining resistor ends are brought out to the other eight pins (see Figure 5).
Figure 5. Eight-resistor SIP schematic
Install the SIP on the PCI-DIO24H board at the locations labeled PORT A, PORT B and PORT C (adjacent to
the 37-pin connector). Figure 6 shows a schematic of an SIP installed in both the pull-up and pull-down
positions.
9
PCI-DIO24H User's Guide Functional Details
2.2 K SIP installed for pull-up
2.2 K SIP
Dot indicates the
common line
+5 VDC
HI
LO
(GND)
n7
U
ser
Connector
Digital I/O Lines
n5
n4
n3
n2
n1
n0
n6
COM
Digital
I/O Port
n = A, B, or C
+5 VDC
2.2 K SIP installed for pull-down
2.2 K SIP
Dot indicates the
common line
HI
LO
(GND)
n7
User Connector
Digital I/O Lines
n5
n4
n3
n2
n1
n0
n6
COM
Digital
I/O Port
n = A, B, or C
Figure 6. Pull-up and pull-down resistor SIP schematic
When installed, the SIP establishes either a high or low logic level at each of the eight I/O lines on the port. At
each board location, A, B, and C, there are 10 holes in a line. The hole on one end is marked "HI" and is
connected to +5V. The other end is marked "LO" and is connected to GND. The eight holes in the middle
connect to eight lines of the port, A, B or C.
To pull-up lines, orient the SIP with the common pin (dot) toward the HI end; to pull-down, install the resistor
with the common pin in the LO hole.
Note
We recommend using 2.2KΩ SIPs (MCC part number SP-K2.29C). Use a different value only if necessary.
10
Parameter
Specification
+5V operating
625 mA typical, 960 mA max
Parameter
Specification
Digital type
8255 mode 0 emulation
Output
74S244
Input
74LS373
Configuration
2 banks of 8, 2 banks of 4, programmable by bank as input or output
Number of channels
24 I/O
Output high
2.4 volts min @ –15 mA
Output low
0.5 volts max @ 64 mA
Input high
2.0 volts min, 7 volts absolute max
Input low
0.8 volts max, –0.5 volts absolute min
Power-up / reset state
Input mode (high impedance)
Interrupts
INTA# - mapped to IRQn via PCI BIOS at boot-time
1 = enabled (default)
0 = active low (default)
Parameter
Specification
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.
Power consumption
Table 1. Power consumption specifications
Digital I/O
Table 2. DIO specifications
Chapter 4
Interrupt enable
Interrupt sources External source (IR INPUT), polarity programmable through PCI9052:
External (IR ENABLE, active low, disabled by default through internal resistor to
TTL high) and programmable through PCI9052:
0 = disabled
1 = active high
Environmental
Table 3. Environmental specifications
11
PCI-DIO24H User's Guide Specifications
Parameter
Specification
Connector type
37-pin D-type
C37FFS-x shielded round cable. x = length in feet.
Pin
Signal Name
Pin
Signal Name
1
IRQ INPUT
20
+5V
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
-12V
33
Port A4
15
GND
34
Port A3
16
+12V
35
Port A2
17
GND
36
Port A1
18
+5V
37
Port A0
19
GND
Signal connector
Table 4. Signal connector specifications
Compatible cables C37FF-x unshielded ribbon cable. x = length in feet.
Compatible accessory products (with the
C37FF-x or C37FFS-x cable)
SCB-37
CIO-MINI37
CIO-MINI37-VERT
CIO-ERB08
CIO-SERB08
CIO-ERB24
CIO-SPADE50
SSR-RACK08
SSR-RACK24
Table 5. Connector pinout
12
Declaration of Conformity
Manufacturer: Measurement Computing Corporation
Address: 10 Commerce Way
Norton, MA 02766
USA
Category: Electrical equipment for measurement, control and laboratory use.
Measurement Computing Corporation declares under sole responsibility that the product
PCI-DIO24H
to which this declaration relates is in conformity with the relevant provisions of the following standards or other
documents:
EC EMC Directive 2004/108/EC: General Requirements, EN 61326-1:2006 (IEC 61326-1:2005).
Emissions:
EN 55011 (2007) / CISPR 11(2003): Radiated emissions: Group 1, Class A
EN 55011 (2007) / CISPR 11(2003): Conducted emissions: Group 1, Class A
Immunity: EN 61326-1:2006, Table 3.
IEC 61000-4-2 (2001): Electrostatic Discharge immunity.
IEC 61000-4-3 (2002): Radiated Electromagnetic Field immunity.
IEC 61000-4-4 (2004): Electric Fast Transient Burst Immunity.
IEC 61000-4-5 (2001): Surge Immunity.
IEC 61000-4-6 (2003): Radio Frequency Common Mode Immunity.
IEC 61000-4-11 (2004): Voltage Interrupts.
To maintain compliance to the standards of this declaration, the following conditions must be met.
The host computer, peripheral equipment, power sources, and expansion hardware must be CE
compliant.
All I/O cables must be shielded, with the shields connected to ground.
I/O cables must be less than 3 meters (9.75 feet) in length.
The host computer must be properly grounded.
Equipment must be operated in a controlled electromagnetic environment as defined by Standards EN
61326-1:2006, or IEC 61326-1:2005.
Declaration of Conformity based on tests conducted by Chomerics Test Services, Woburn, MA 01801, USA in
March, 2009. Test records are outlined in Chomerics Test Report #EMI5299.09.
We hereby declare that the equipment specified conforms to the above Directives and Standards.
Carl Haapaoja, Director of Quality Assurance
Measurement Computing Corporation NI Hungary Kft
10 Commerce Way H-4031 Debrecen, Hátar út 1/A, Hungary
Norton, Massachusetts 02766 Phone: +36 (52) 515400
(508) 946-5100 Fax: +36 (52) 515414
Fax: (508) 946-9500 http://hungary.ni.com/debrecen
E-mail: info@mccdaq.com
www.mccdaq.com
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