Acces I/O products PCIe-DIO-120 User manual

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10623 Roselle Street, San Diego, CA 92121 •[phone] •FAX [phone]
[email protected] •www.accesio.com
MODELS
PCIe-DIO-120,
PCIe-DIO-96,
and PCIe-DIO-72
Digital I/O Card
USER MANUAL
FILE: PCIe-DIO-120.B1

Manual PCIe-DIO-120/96/72
2
Notice
The information in this document is provided for reference only. ACCES does not assume any
liability arising out of the application or use of the information or products described herein. This
document may contain or reference information and products protected by copyrights or patents
and does not convey any license under the patent rights of ACCES, nor the rights of others.
IBM PC, PC/XT, and PC/AT are registered trademarks of the International Business Machines
Corporation.
Printed in USA. Copyright by ACCES I/O Products Inc, 10623 Roselle Street, San Diego, CA
92121. All rights reserved.
WARNING!!
ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE
COMPUTER POWER OFF. ALWAYS TURN COMPUTER POWER OFF BEFORE
INSTALLING A CARD. CONNECTING AND DISCONNECTING CABLES, OR
INSTALLING CARDS INTO A SYSTEM WITH THE COMPUTER OR FIELD POWER ON
MAY CAUSE DAMAGE TO THE I/O CARD AND WILL VOID ALL WARRANTIES,
IMPLIED OR EXPRESSED.

Manual PCIe-DIO-120/96/72
3
Warranty
Prior to shipment, ACCES equipment is thoroughly inspected and tested to applicable
specifications. However, should equipment failure occur, ACCES assures its customers that
prompt service and support will be available. All equipment originally manufactured by ACCES
which is found to be defective will be repaired or replaced subject to the following
considerations.
Terms and Conditions
If a unit is suspected of failure, contact ACCES' Customer Service department. Be prepared to
give the unit model number, serial number, and a description of the failure symptom(s). We may
suggest some simple tests to confirm the failure. We will assign a Return Material Authorization
(RMA) number which must appear on the outer label of the return package. All
units/components should be properly packed for handling and returned with freight prepaid to
the ACCES designated Service Center, and will be returned to the customer's/user's site freight
prepaid and invoiced.
Coverage
First Three Years: Returned unit/part will be repaired and/or replaced at ACCES option with no
charge for labor or parts not excluded by warranty. Warranty commences with equipment
shipment.
Following Years: Throughout your equipment's lifetime, ACCES stands ready to provide on-site
or in-plant service at reasonable rates similar to those of other manufacturers in the industry.
Equipment Not Manufactured by ACCES
Equipment provided but not manufactured by ACCES is warranted and will be repaired
according to the terms and conditions of the respective equipment manufacturer's warranty.
General
Under this Warranty, liability of ACCES is limited to replacing, repairing or issuing credit (at
ACCES discretion) for any products which are proved to be defective during the warranty
period. In no case is ACCES liable for consequential or special damage arriving from use or
misuse of our product. The customer is responsible for all charges caused by modifications or
additions to ACCES equipment not approved in writing by ACCES or, if in ACCES opinion the
equipment has been subjected to abnormal use. "Abnormal use" for purposes of this warranty is
defined as any use to which the equipment is exposed other than that use specified or intended
as evidenced by purchase or sales representation. Other than the above, no other warranty,
expressed or implied, shall apply to any and all such equipment furnished or sold by ACCES.

Manual PCIe-DIO-120/96/72
4
Table of Contents
Chapter 1: Introduction.................................................................................................5
Features......................................................................................................................5
Applications...............................................................................................................5
Functional Description..............................................................................................5
Buffers........................................................................................................................5
Bias Resistors............................................................................................................6
Interrupts....................................................................................................................6
Wiring .........................................................................................................................6
Figure 1-1: Block Diagram ......................................................................................6
Ordering Guide ..........................................................................................................7
Model Options............................................................................................................7
Included with your board..........................................................................................7
Optional Accessories................................................................................................7
Chapter 2: Installation...................................................................................................8
Configure Card Options via Jumper Selection .......................................................8
CD Software Installation ...........................................................................................8
Windows.....................................................................................................................8
Linux...........................................................................................................................8
Hardware Installation ................................................................................................9
Chapter 3: Hardware Details ......................................................................................10
Figure 3-1: Option Selection Map..........................................................................10
Chapter 4: Address Selection ....................................................................................11
Chapter 5: Programming............................................................................................12
Developing Your Own Software .............................................................................12
Table 6-1: Address Registry Table........................................................................12
Table 6-2: Control Register Bit Assignments.........................................................13
Base Address +1C (read/write) DIO Buffer Enable / Disable (tri-state)...............13
Chapter 6: Connector Pin Assignments....................................................................14
Table 6-1: Connector Pin Assignments.................................................................14
Chapter 7: Specifications ...........................................................................................15

Manual PCIe-DIO-120/96/72
5
Chapter 1: Introduction
The PCIe-DIO-120 series are x1 lane PCI Express (PCIe) boards with 120, 96, or 72
digital I/O lines designed for use in a variety of Digital I/O (DIO) applications. They use
the high speed PCIe bus to transfer digital data to and from the board. The FPGA based
DIO emulates 8255 compatible chips in mode 0, making it easy to program. This also
allows for simple migration from older ACCES’ PCI-based DIO boards. Lastly, the x1
lane PCIe connector is very flexible and can be inserted into any x1, x4, x8, x16, or x32
PCIe slot.
Features
•72, 96 and 120 channels of digital input/output
•IRQ generation from Port C bit 3
•All I/O lines are buffered on the card
•Four and eight bit ports independently selectable for I/O on each 24-bit group
•Jumper configurable pull-up / pull-down 10kΩ resistors on I/O lines
•Fused VCCIO supply available to user on each 50 pin header
•I/O ports globally tri-stateable through software
•Compatible with industry standard I/O racks like Grayhill, Opto 22, Western Reserve
Controls, etc.
Applications
•Automatic Test Systems
•Security Systems, Energy Management
•Robotics
•Relay Monitoring and Control
•Parallel Data Transfer to PC
•Sensing switch closures or TTL, DTL, CMOS Logic
•Driving Indicator Lights or Recorders
Functional Description
This manual applies to Models 120, 96, and 72. The same circuit board is used for all
three models. The board is populated for 120 bits, 96 bits, and 72 bits respectively.
Buffers
Each I/O line is buffered and capable of sourcing or sinking 32mA when VCCIO is
configured for 5V. The board contains FPGA circuitry that emulates type 8255 mode 0
Programmable Peripheral Interface (GROUP) to provide a computer interface to digital
I/O lines. Each group supports two 8-bit ports (A, B) and two 4-bit ports (CHi, CLo). Each
port can be configured to function as either input or output latches. The I/O line buffers
are configured automatically by hardware logic for input or output according to the
GROUP Control Register direction software assignment. All DIO lines can be tristated as
well using the corresponding software command.

Manual PCIe-DIO-120/96/72
6
Bias Resistors
Outputs of the I/O buffers are jumper configurable to be pulled up or down through 10kΩ
resistor networks to VCCIO. There is a description in the Option Selection section of this
manual that describes how to configure these on your card.
Interrupts
One digital I/O line of each group can be used to generate an interrupt with a rising edge
at bit C3. Interrupts are enabled by software.
Wiring
I/O wiring connections are via 50-pin headers on the board. This provides compatibility
with OPTO-22, Gordos, Potter & Brumfield, Western Reserve Controls, etc. module
mounting racks. Every second conductor of the flat cables is grounded to minimize
crosstalk between signals. If needed for external circuits, VCCIO power is available on
each I/O connector at pin 49.
Figure 1-1: Block Diagram

Manual PCIe-DIO-120/96/72
7
Ordering Guide
PCIe-DIO-120 120 Channel Digital I/O Card
PCIe-DIO-96 96 Channel Digital I/O Card
PCIe-DIO-72 72 Channel Digital I/O Card
Model Options
-T Extended operating temperature (-40° to +85°C)
Included with your board
The following components are included with your shipment. Please take time now to
ensure that no items are damaged or missing.
DIO Board
Packing Slip
Optional Accessories
CAB50F-6 6’ ribbon cable with strain relieved 50 pin female connectors
STB-120CH Large screw terminal board for PCIe-DIO-120 installed in T-Box
STB-96CH Large screw terminal board for PCIe-DIO-96 installed in T-Box
STB-72CH Large screw terminal board for PCIe-DIO-72 installed in T-Box
CAB50-6 6’ ribbon cable female 50 pin to 50 pin card edge connector

Manual PCIe-DIO-120/96/72
8
Chapter 2: Installation
A printed Quick-Start Guide (QSG) is packed with the card for your convenience. If
you’ve already performed the steps from the QSG, you may find this chapter to be
redundant and may skip forward to begin developing your application.
The software provided with this card is normally downloaded from the product page at
accesio.com, or optionally on CD, and must be installed onto your hard disk prior to use.
To do this, perform the following steps as appropriate for your operating system.
Configure Card Options via Jumper Selection
Before installing the card into your computer, carefully read Chapter 3: Option Selection
of this manual, then configure the card according to your requirements. Our Windows
based setup program can be used in conjunction with Chapter 3 to assist in configuring
jumpers on the card, as well as provide additional descriptions for usage of the various
card options.
CD Software Installation
The following instructions assume the CD-ROM drive is drive “D”. Please substitute the
appropriate drive letter for your system as necessary.
Windows
1. Place the CD into your CD-ROM drive.
2. The system should automatically run the install program. If the install program
does not run promptly, click START | RUN and type , click OK
or press .
3. Follow the on-screen prompts to install the software for this board.
Linux 1. Please refer to linux.htm on the CD-ROM for information on installing under linux.
Caution! * ESD A single static discharge can damage your card and
cause premature failure! Please follow all reasonable
precautions to prevent a static discharge such as
grounding yourself by touching any grounded surface
prior to touching the card.

Manual PCIe-DIO-120/96/72
9
Hardware Installation
1. Make sure to set switches and jumpers from either the Option Selection section
of this manual or from the suggestions of SETTINGS.EXE.
2. Do not install card into the computer until the software has been fully installed.
3. Turn OFF computer power AND unplug AC power from the system.
4. Remove the computer cover.
5. Install I/O cables through the cutout in the mounting bracket, leaving one strain
relief bar below the cables and setting the other bar aside along with the provided
hex nuts. Plug all the cables onto their header connectors.
6. Install the second strain relief bar and tighten the hex nuts down firmly, but don’t
overtighten them.
7. Fish the ribbon cables through the open back plate next to the PCI Express slot
you’ll be plugging the card into, then carefully plug the card into the PCI Express
expansion slot.
8. Inspect for proper fit of the card and tighten the bracket screw. Make sure that
the card mounting bracket is properly screwed into place and that there is a
positive chassis ground.
9. Replace the computer cover and turn ON the computer which should auto-detect
the card (depending on the operating system) and automatically finish installing
the drivers.
10. Run one of the provided sample programs that was copied to the newly created
card directory (from the CD or downloaded from the product page) to test and
validate your installation.

Manual PCIe-DIO-120/96/72
10
Chapter 3: Hardware Details
Refer to the illustrated setup program installed with the software package when reading
this section of the manual. Also, refer to Figure 3-1, Option Selection Map.
External interrupts are accepted on pin 9 (Bit C3) of each I/O connector when enabled
by software. The interrupt signal should be a rising edge and is latched.
As pointed out in Chapter 1 of this manual, outputs of the I/O buffers may be either
pulled-up to VCCIO or pulled down to ground. You can configure these resistors per
port.
VCCIO signaling levels are globally configured via jumper selection. Refer to the
specifications chapter for signal levels for each possible selection.
The foregoing are the only manual setups necessary to use these cards. Input/Output
selection is done via software, by writing to the GROUP Control Registers as described
in the Programming section of this manual.
Figure 3-1: Option Selection Map

Manual PCIe-DIO-120/96/72
11
Chapter 4: Address Selection
These cards use one address space, and occupy 64 register locations. These are
defined in the Port Address Selection Table in the Programming section of this manual.
PCI Express architecture is inherently plug-and-play. This means that the BIOS or
Operating System determines the resources assigned to PCI Express cards rather than
you selecting those resources with switches or jumpers. As a result, you cannot set or
change the card's base address or IRQ level. You can only determine what the system
has assigned.
To determine the base address that has been assigned, run the AIOWDMFind.EXE
utility program provided. This utility will display a list of all of the cards detected on the
PCI Express bus, the addresses assigned to each function on each of the cards, and the
respective IRQs.
Alternatively, some operating systems can be queried to determine which resources
were assigned. In these operating systems, you can use either AIOWDMFind (Windows
7 or later) PCIFind or the Device Manager utility from the System Properties Applet of
the control panel. The card is installed in the Data Acquisition class of the Device
Manager list. Selecting the card, clicking Properties, and then selecting the Resources
Tab will display a list of the resources allocated to the card.
If you want to determine the base address and IRQ yourself, use the following
information.
The Vendor ID for these cards is 494F. (ASCII for "IO")
The Device ID for the 72 is 0C6A.
The Device ID for the 96 is 0C71.
The Device ID for the 120 is 0C79.

Manual PCIe-DIO-120/96/72
12
Chapter 5: Programming
The 120/96/72 cards are I/O mapped devices that are easily configured from any
language.
Developing Your Own Software
Four register locations are required per 24-bit group. Thus, a total of 20 register
locations are used by the 120 for addressing groups 0 through 4. The 96 uses a total of
16 registers for groups 0 through 3, and the 72 uses 12 registers for groups 0 through 2.
Address
Assignment
Operation
Base Address
PA Group 0
Read/Write
Base Address +1
PB Group 0
Read/Write
Base Address +2
PC Group 0
Read/Write
Base Address +3
Control Port 0
Write Only
Base Address +4
PA Group 1
Read/Write
Base Address +5
PB Group 1
Read/Write
Base Address +6
PC Group 1
Read/Write
Base Address +7
Control Port 1
Write Only
Base Address +8
PA Group 2
Read/Write
Base Address +9
PB Group 2
Read/Write
Base Address +A
PC Group 2
Read/Write
Base Address +B
Control Port 2
Write Only
Base Address +C
PA Group 3
Read/Write
Base Address +D
PB Group 3
Read/Write
Base Address +E
PC Group 3
Read/Write
Base Address +F
Control Port 3
Write Only
Base Address +10
PA Group 4
Read/Write
Base Address +11
PB Group 4
Read/Write
Base Address +12
PC Group 4
Read/Write
Base Address +13
Control Port 4
Write Only
Base Address +1C
DIO Buffer Enable
Read/Write
Base Address +1E
Clear/Disable Interrupts
Write Only
Base Address +1F
Clear/Enable Interrupts
Write Only
Table 6-1: Address Registry Table

Manual PCIe-DIO-120/96/72
13
The cards are designed to emulate each GROUP wherein:
a. There are two 8-bit ports (A and B) and two 4-bit ports (C Hi and C Lo).
b. Any port can be configured as an input or an output.
c. Outputs are latched.
d. Inputs are not latched.
e. The card is initialized in the input mode
Each GROUP contains a control register. This Write-only, 8-bit register is used to set the
mode and direction of the ports. At Power-Up or Reset, all I/O lines are set as inputs.
Each GROUP should be configured during initialization by writing to the control registers
even if the ports are going to be used as inputs. Output buffers are automatically set by
hardware logic according to the control register states. Control registers are located at
base addresses +3, +7, +B, +F, and +13. Bit assignments in each of these control
registers are as follows:
Bit
Assignment
Function
D0
Port C Lo (C0-C3)
1 = Input, 0 = Output
D1
Port B
1 = Input, 0 = Output
D2
N/A
N/A
D3
Port C Hi (C4-C7)
1 = Input, 0 = Output
D4
Port A
1 = Input, 0 = Output
D5,D6
N/A
N/A
D7
Mode Set (see note 1)
Scratchpad
Table 6-2: Control Register Bit Assignments
Note 1: This bit is a read/write scratchpad. For maximum compatibility with the 8255,
always set this bit (to 1).
Base Address +1C (read/write) DIO Buffer Enable / Disable (tri-state)
At power-up or reset, all DIO buffers on the card are enabled. To disable the DIO
buffers, write a one to bit 0. To re-enable the DIO buffers, write a zero to bit 0. When
buffers are disabled the pins are tri-stated and biased by the state of the pull up or down
configuration jumpers. A read of bit 0 returns the enable / disable status.

Manual PCIe-DIO-120/96/72
14
Chapter 6: Connector Pin Assignments
For I/O connections, 50-pin headers are provided on the cards; one for each group of 24
I/O lines. Mating connectors are TE Connectivity AMP 1-1658621-0 or equivalent.
Assignment
Pin
Assignment
Pin
Port C Hi PC7
1
All Even numbered pins are Ground
2
Port C Hi PC6
3
4
Port C Hi PC5
5
6
Port C Hi PC4
7
8
Port C Lo PC3*
9
10
Port C Lo PC2
11
12
Port C Lo PC1
13
14
Port C Lo PC0
15
16
Port B PB7
17
18
Port B PB6
19
20
Port B PB5
21
22
Port B PB4
23
24
Port B PB3
25
26
Port B PB2
27
28
Port B PB1
29
30
Port B PB0
31
32
Port A PA7
33
34
Port A PA6
35
36
Port A PA5
37
38
Port A PA4
39
40
Port A PA3
41
42
Port A PA2
43
44
Port A PA1
45
46
Port A PA0
47
48
Fused VCCIO
49
50
Table 6-1: Connector Pin Assignments
* This line is an I/O port and also a User Interrupt.

Manual PCIe-DIO-120/96/72
15
Chapter 7: Specifications
Digital I/O
Lines 120; (5 Groups) Ports A, B, CLo and CHi
Type Emulates 8255 compatible chips in Mode 0
Logic Level VCCIO
Pull-up/down 10k ohm, jumper selectable
VCCIO
Logic Levels
5V
Low Inputs
≤ 1.5V
≤ 2uA
High Inputs
≥ 3.5V
≤ 2uA
Low Outputs
≤ 0.55V
32mA
High Outputs
≥ 3.8V
32mA
Logic Levels
3.3V
Low Inputs
≤ 0.8V
≤ 2uA
High Inputs
≥ 2.0V
≤ 2uA
Low Outputs
≤ 0.55V
24mA
High Outputs
≥ 2.4V
24mA
Logic Levels
2.5V
Low Inputs
≤ 0.7V
≤ 2uA
High Inputs
≥ 1.7V
≤ 2uA
Low Outputs
≤ 0.5V
8mA
High Outputs
≥ 1.9V
8mA
Logic Levels
1.8V
Low Inputs
≤ 0.63V
≤ 2uA
High Inputs
≥ 1.17V
≤ 2uA
Low Outputs
≤ 0.45V
4mA
High Outputs
≥ 1.2V
4mA
Environmental
Operating Temperature 0° to 70°C
optional -40° to +85°C
Storage Temperature -55° to +150°C
Humidity 5% to 95% RH, w/o condensation
Card Dimensions length –10.5" Height - 4.2" seated

Manual PCIe-DIO-120/96/72
16
Customer Comments
If you experience any problems with this manual or just want to give us some feedback,
please email us at: [e-mail]. Please detail any errors you find and
include your mailing address so that we can send you any manual updates.
10623 Roselle Street, San Diego CA 92121
Tel. [phone] FAX [phone]
www.accesio.com

Artisan Technology Group is your source for quality
new and certied-used/pre-owned equipment
• FAST SHIPPING AND
DELIVERY
• TENS OF THOUSANDS OF
IN-STOCK ITEMS
• EQUIPMENT DEMOS
• HUNDREDS OF
MANUFACTURERS
SUPPORTED
• LEASING/MONTHLY
RENTALS
• ITAR CERTIFIED
SECURE ASSET SOLUTIONS
SERVICE CENTER REPAIRS
Experienced engineers and technicians on staff
at our full-service, in-house repair center
WE BUY USED EQUIPMENT
Sell your excess, underutilized, and idle used equipment
We also offer credit for buy-backs and trade-ins
www.artisantg.com/WeBuyEquipment
REMOTE INSPECTION
Remotely inspect equipment before purchasing with
our interactive website at www.instraview.com
LOOKING FOR MORE INFORMATION?
Visit us on the web at www.artisantg.com for more
information on price quotations, drivers, technical
specications, manuals, and documentation
Contact us: (888) 88-SOURCE | [e-mail] | www.artisantg.com
SM
View
Instra