SeaLevel DIO-32.PCIe User manual

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© Sealevel Systems, Inc. 8004e Manual | SL9207 12/2022
DIO-32.PCIe
User Manual | 8004e

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© Sealevel Systems, Inc. 8004e Manual | SL9207 12/2022
Contents
CONTENTS...........................................................................................................................................................2
BEFORE YOU GET STARTED ...............................................................................................................................3
INTRODUCTION ................................................................................................................................................... 4
ELECTRICAL SPECIFICATIONS...........................................................................................................................6
TECHNICAL SPECIFICATIONS............................................................................................................................7
HARDWARE INSTALLATION ...............................................................................................................................8
PROGRAMMING THE DIO-32.PCI .....................................................................................................................11
EXAMPLE CIRCUITS ..........................................................................................................................................19
SOFTWARE INSTALLATION..............................................................................................................................20
APPENDIX A – HANDLING INSTRUCTIONS ....................................................................................................23
APPENDIX B – TROUBLESHOOTING................................................................................................................24
APPENDIX C – HOW TO GET ASSISTANCE.....................................................................................................27
APPENDIX D – DRAWING..................................................................................................................................28
APPENDIX E – COMPLIANCE NOTICES...........................................................................................................29
WARRANTY ........................................................................................................................................................30

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Before You Get Started
What’s Included
The 8004e is shipped with the following items. If any of these items are missing or damaged, please contact
Sealevel for replacement.
•8004e - DIO-32.PCIe Digital I/O Adapter
o8004e – Board with 3-13 inputs
o8004He – Board with 10-30V inputs
•DB78 Maes to D37 Male and DB37 Female V-cable (Item# CA165)
Advisory Conventions
Warning
The highest level of importance used to stress a condition where damage could result to the
product, or the user could suffer serious injury.
Important
The middle level of importance used to highlight information that might not seem obvious or a
situation that could cause the product to fail.
Note
The lowest level of importance used to provide background information, additional tips, or other
non-critical facts that will not affect the use of the product.

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Introduction
Overview
The DIO-32.PCIe digital I/O interface provides 16 optically isolated inputs and 16 reed relay outputs. The
inputs protect the PC and other sensitive equipment from spikes and ground loop current that can be
generated in industrial environments, while the outputs provide high quality, long life, low current (10 Watt
maximum), dry contact switch closures. Reed relays are well suited for low current applications. The relays
are normally open, and close when energized.
The SeaI/O Classic software drivers and utilities can be obtained from the Sealevel web site. They make
installation and operation easy using Windows 7, Vista, and XP operating systems. The SeaI/O API
(Application Programmer Interface) provides a variety of useful high-level function calls implemented as a
Windows dynamic link library (DLL) and as a Linux kernel module and library. SeaI/O also includes sample
code and utilities to simplify software development.
The inputs on the 8004e are rated for 3-13V. The inputs on the 8004He are rated for 10-30V.
Features
•PCI Express X1 compliant
•16 optically isolated inputs
•Socketed dip resistor allows user configurable input range up to +30V
•16 Reed relay outputs (SPST)
•Highly reliable 10VA Reed relays
•Power (+5V and +12V) and ground provided on DB78 board connector
•Includes 72” cable with DB78 Male connector to DB37 Male and DB37 Female connectors (Item#
CA165)
•SeaI/O Classic software supports Windows 7, Vista, and XP operating systems
•Software support for Linux available

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Optional Items
Depending upon your application, you are likely to find one or more of the following items useful with the
8004e. All items can be purchased from our website (www.sealevel.com)by calling our sales team at (864)
843-4343.
Cables
DB37 Male to DB37 Female Extension Cable (Item# CA112)
This cable provides a 6’ extension to the CA165. It has one
DB37 Male connector and one DB37 Female connector.
DB78 Male to DB78 Female Extension Cable (Item# CA233)
This cable provides a 6’ extension to the DB78 board
connector on the 8004e. It has one DB78 Male connector and
one DB78 Female connector.
DB78M to DB37 Female and DB37 Male, for 3093 (Item# CA378)
The CA378 is designed specifically for customers using the
3093 ISA digital I/O board that need to upgrade to the 8004e
PCIe board while preserving existing infrastructure wiring. The
CA378 connects to the 8004e and provides an identical pin out
to the 3093.
Terminal Blocks
DB37 Terminal Block (Item# TB02)
Break out serial and digital connectors to screw terminals for
easy field connection. The TB02 terminal block is designed
with both DB37 male and female connectors for interfacing
the inputs or outputs.

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Electrical Specifications
Features
•2 sets SPST relays with each having 8 relays
•2 eight bit input ports
•DB-37 Male connector for relay outputs
•DB-37 Female connector for optically isolated inputs
•Highly reliable 10 VA reed relays
•Multiple adapters can reside in same computer
Input Ports
Turn On Current 3mA
Isolator Diode Drop 1.1 VDC
Resistor Power Max .25 W
Maximum Input Range 3 – 13 VDC/VAC
Maximum Input Current 50 mA
Output Relays
Contact Max Power Rating 10 W
Contact Voltage Maximum 60 VDC (or peak VAC)
Contact Current Maximum .5A AC/DC RMS
Contact Resistance, Initial .15
Ω
Rated Life
Low Load 200 Million Closures
Maximum Load 100 Million Closures
Contact Speed
Operate .5 mS
Release .5 mS
Bounce .5 mS
Maximum Operating Speed 600 Hz

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Technical Specifications
Physical Dimensions
Board length 6.5 inches (16.5 cm)
Board height 4.2 inches (10.7 cm)
Environmental Specifications
Specification Operating Storage
Temperature Range 0º to 70º C (32º to 158º F) -50º to 105º C (-58º to 221º F)
Humidity Range 10 to 90% R.H. Non-Condensing 10 to 90% R.H. Non-Condensing
Manufacturing
All Sealevel Systems Printed Circuit boards are built to UL 94V0 rating and are 100% electrically tested.
These printed circuit boards are solder mask over bare copper or solder mask over tin nickel.

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Hardware Installation
Do not install the PCI Express board until the software has been fully installed.
The DIO-32.PCIe does not need to be configured prior to installation.
Once you have installed the SeaI/O Classic software, install the board into an available PCI Express slot
and boot the computer. The Found New Hardware wizard will appear. The drivers that were installed
during the software installation process will automatically be used to configure the adapter.
The following instructions are applicable to the Windows XP operating system and may vary depending
on your version of Windows.
1. After the software installation is complete, install the ISO-16.PCIe into an available PCI Express
slot and boot the computer.
2. A ‘Found New Hardware’ alert will appear above the system tray.
3. When the ‘Found New Hardware’ alert informs you that your hardware is installed and ready to use,
you can proceed with verifying the installation to check functionality if necessary.

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Verifying Installation
To confirm that the digital I/O card has been successfully installed and recognized by your operating
system, look in the Windows Device Manager.
To access Device Manager, follow the steps below:
1. Right click on ‘My Computer’ icon on your desktop or in the Start menu.
2. Click ‘Manage’ in the fly out menu to launch the ‘Computer Management’ console window.
3. In the left pane under ‘System Tools’, click ‘Device Manager’.
4. In right pane near the bottom, expand the ‘SeaI/O Device’ section by clicking the ‘+’ symbol. This
shows the parent device is installed correctly.
5. You should see the card assignment listed as ‘SeaI/O 8004e’ with the card number in parentheses.
The card number will increment for each additional SeaI/O device installed.
The DIO-32.PCIe is now ready for use.

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Digital I/O Interface
The DIO-32.PCIe provides four parallel input/output (I/O) ports. The ports are organized as ports A, B, C,
and D. Port A and B are input ports interfaced to optically-isolated inputs, while ports C and D are reed relay
output ports. Assuming an I/O address of 4000 Hex the following table shows the Port Addresses.
Base Address Hex Decimal Mode
Port A Address 4000 16384
Port B Address 4001 16385
Optically Isolated Input Port
Port C Address 4002 16386
Port D Address 4003 16387
Reed Relay Output Port

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Programming the DIO-32.PCI
Sealevel’s SeaI/O Classic software is provided to assist in the development of reliable applications for the
Sealevel Systems family of PCI and PCI Express digital I/O adapters. Included in Sealevel’s software are
driver functions for use in accessing the I/O as well as helpful samples and utilities.
Programming for Windows
The SeaI/O API (Application Programmer Interface) provides a variety of useful high-level function calls
implemented in a Windows dynamic link library (DLL). The API is defined in the help file
(Start/Programs/SeaIO/SeaIO Help) under “Application Programmers Interface.” This help file also
includes detailed information dealing with installation / removal of the software and information about
latency, logic states, and device configuration.
For C language programmers we recommend using the API to access the SeaLINK DIO-32.PCI. If you are
programming in Visual Basic, using the ActiveX control included with SeaI/O is advised.
Samples and Utilities
A variety of sample programs and utilities (both executable and source code) are included with SeaI/O.
Further documentation on these samples can be found by selecting “Start/Programs/SeaIO/Sample
Application Description.” Information about where the files are physically stored on your system is also
included in this same file.
Programming for Linux
SeaI/O for Linux consists of two major parts: a kernel module and a library. The kernel module is a simple
IO pass-through device, allowing the library to handle the more sophisticated functions provided to SeaI/O
users. It is provided in a ‘tarball’ format and can easily be compiled and included in the kernel build.
Input Ports
Ports A and B are 8 bit input ports connected to optically isolated input sensors. Each sensor can be used
to interface a voltage input and then sense whether the voltage is on or off. Each sensor is isolated (with
respect to a common ground) from every other sensor, and also isolated with respect to the host PC ground.
This means that signals such as low-level AC line voltage, e.g. 12 or 24VAC, motor servo voltage, and
control relay signals can be ‘sensed’, or read by the PC, without the risk of damage due to ground loops or
ground faults.
Each sensor input pair has a current limiting resistor that is used to limit the input current to the opto-
isolator. The opto-isolator has two ‘back-to-back’ diodes internally. This allows AC or DC signals to be
sensed, regardless of polarity. When the applied voltage is high enough to cause the LED in the opto-isolator
to turn-on, the output of the opto-isolator goes low (0 volts), and the signal is read as a low logic level (binary
0) by the PC. When the input signal is too low to turn on the opto-isolator, the output goes high, and the port
bit is read by the PC as a high logic level (binary 1). While this is true at the hardware level, the Microsoft
Windows driver gives the application the ability to use Positive or Negative Logic. This card defaults to
Positive Logic and therefore the driver inverts the logic level BEFORE the information is returned to the

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application. Therefore, a voltage high enough to cause the LED to turn on will be read by the application as
a logic high level.
The input impedance of each isolated input is approximately 560 ohms (factory default). The opto-isolator
requires approximately 3mA to turn on. The maximum input current is 50mA. There are two things to
consider when selecting the input resistor. The first is turn on voltage for the circuit to sense, and second
is the maximum input voltage. Maximum input voltage must not provide too much power to the input
resistor and must also not overdrive the opto-isolator input current specification. The following formulas
apply:
Turn on Voltage = diode drop + (turn on current) x (resistance) [Ex: 1.1 + (.003) x R]
Input Current = ((input voltage)-1.1V) / (resistor value)
Maximum voltage = 1.1 + square root of (.25(resistor value))
The following table shows common input resistors and the ranges associated with each.
Input Resistor Turn-On Input Range Max Input Max Current
220Ω1.8V 1.8 – 7.0V 8.5V 27mA
560Ω2.8V 2.8 – 10.6V 12.9V 20mA
1KΩ4.1V 4.1 – 13.8V 16.9V 15mA
2.2KΩ7.7V 7.7 – 20.0V 24.5V 10mA
3.3KΩ10.0V 10.0 – 24.0V 30.0V 9mA
4.7KΩ15.2V 15.2 – 28.0V 35.0V 7mA
The turn-off voltage for all resistors is less than 1V. The opto-couplers require a minimum voltage
to turn on and this voltage is dependent on the input resistor shown on the table above.
Increasing the input resistor accordingly can increase the maximum input voltage. Because socketed DIP
resistors are utilized, they can easily be replaced with a different value. Sealevel can do this, if necessary.
The input circuits are not intended for monitoring 120-volt AC circuits. In addition to being too high
a voltage for the circuits, it is dangerous to have that high a voltage on the card.

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Input Ports Pin Assignments (DB-37 Female)
Inputs are interfaced via the DB-37 female connector on the supplied CA165 cable.
The CA165 cable input pin out is not compatible with the 3093 ISA digital I/O board. If you are
upgrading from the 3093 and wish to preserve existing infrastructure wiring, order the CA378 cable.
Port A Bit Port A Input Pin
Pairs
Port B Bit Port B Input Pin
Pairs
0 18,37 0 10,29
1 17,36 1 9, 28
2 16,35 2 8,27
3 15,34 3 7,26
4 14,33 4 6,25
5 13,32 5 5,24
6 12,31 6 4,23
7 11,30 7 3,22
Ground 2,20,21
+12 Volts 1
+5 Volts 19

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Output Ports (Reed Relay)
Reed relays provide very high quality, long life, low current (10 Watt maximum), dry contact switch closures.
Reed relays are not suited for high current applications, and can be destroyed by inductive load switching,
where a spark occurs across the contacts internally. The relays are normally open, and close when
energized.
Output Ports (Reed Relay) Pin Assignments (DB-37 Male)
Outputs are interfaced via the DB-37 male connector on the supplied CA165 cable.
Port C Bit Relay Port C Output
Pin Pairs
Port D Bit Relay Port D Output
Pin Pairs
0 K16 2,20 0 K8 10,28
1 K15 3,21 1 K7 11,29
2 K14 4,22 2 K6 12,30
3 K13 5,23 3 K5 13,31
4 K12 6,24 4 K4 14,32
5 K11 7,25 5 K3 15,33
6 K10 8,26 6 K2 16,34
7 K9 9,27 7 K1 17,35
Ground 18,36,37
+ 5 Volts 19
+ 12 Volts 1

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DB-78 Female Pin Assignments (Card Edge Connector)
Bit Port A Pins Port B Pins Port C Pins Port D Pins
0 55,74 47,66 2,20 10,28
1 54,73 46,65 3,21 11,29
2 53,72 45,64 4,22 12,30
3 52,71 44,63 5,23 13,31
4 51,70 43,62 6,24 14,32
5 50,69 42,61 7,25 15,33
6 49,68 41,60 8,26 16,34
7 48,67 40,59 9,27 17,35
GND 39,57,58 18,36,37
+12V 38 1
+5V 56 19

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Direct Hardware Control
In systems where the users program has direct access to the hardware (DOS) the tables that follow give
the mapping and functions that the DIO-32.PCIe provides.
Function Available Port Address Hex Port Type
RD A Base + 0
RD B Base + 1
Optically Isolated Input Port
RD/WR C Base + 2
RD/WR D Base + 3
Reed Relay Output Port
RD = Read, RD/WR = Read or Write
Reading the Inputs
The inputs are active Low. If no voltage is applied across one of the differential inputs, it returns a one on
that bit. If an AC or DC voltage is applied, it returns a zero on that bit.
Reading the Outputs
The relay ports return the ones complement of the value that is currently being used to drive the relays.
Writing the Outputs
The output ports are the only ports that can be written. The relays on a standard DIO-32.PCIe are normally
open. To close a relay a one must be written to the appropriate bit.
Register Description
All ports are set to input after reset or power up.
Address
Mode
D7
D6
D5
D4
D3
D2
D1
D0
Base+0
Input Port A
RD
PAD7
PAD6
PAD5
PAD4
PAD3
PAD2
PAD1
PAD0
Base+1
Input Port B
RD
PBD7
PBD6
PBD5
PBD4
PBD3
PBD2
PBD1
PBD0
Base+2
Output Port C
RD/WR
PCD7
PCD6
PCD5
PCD4
PCD3
PCD2
PCD1
PCD0
Base+3
Output Port D
RD/WR
PDD7
PDD6
PDD5
PDD4
PDD3
PDD2
PDD1
PDD0

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Optional 3093 Migration Cable (CA378)
On the 3093 ISA digital I/O board, the input pins #1 and #19 are reversed from the standard CA165 cable
that ships standard with the 8004. If you are upgrading from a 3093 ISA board to an 8004 PCI board and
wish to preserve existing infrastructure wiring, order the CA378 cable and use it in place of the standard
CA165 cable.
CA378 Input Pin Assignments (DB-37 Female)
Inputs are interfaced via the DB-37 female connector on the optional CA378 cable.
Port A Bit Port A Pins Port B Bit Port B Pins
0 18,37 0 10,29
1 17,36 1 9, 28
2 16,35 2 8,27
3 15,34 3 7,26
4 14,33 4 6,25
5 13,32 5 5,24
6 12,31 6 4,23
7 11,30 7 3,22
Ground 2,20,21
+12 Volts 19
+5 Volts 1
The CA378 cable is designed specifically for customers upgrading from a 3093 ISA board to the
8004 PCI board. If you are not upgrading from the 3093 board, use the standard CA165 cable that
ships with the 8004 PCI digital I/O board.

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CA378 Output Pin Assignments (DB-37 Male)
Outputs are interfaced via the DB-37 male connector on the optional CA378 cable.
Port C Bit Relay Port C Pins Port D Bit Relay Port D Pins
0 K16 2,20 0 K8 10,28
1 K15 3,21 1 K7 11,29
2 K14 4,22 2 K6 12,30
3 K13 5,23 3 K5 13,31
4 K12 6,24 4 K4 14,32
5 K11 7,25 5 K3 15,33
6 K10 8,26 6 K2 16,34
7 K9 9,27 7 K1 17,35
Ground 18,36,37
+ 5 Volts 19
+ 12 Volts 1

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Example Circuits
INPUT CIRCUIT
In the above circuit diagram, Inputnis one of the two Input Pair Pins from the table labeled Input Ports Pin
Assignments. Common is the other pin listed in the Input Pair Pins entry. The polarity of the pair does not
matter.
OUTPUT CIRCUIT
In the above circuit diagram, Outputn is one of the two Output Pair Pins from the table labeled Output Ports
Pin Assignments. Common is the other pin listed in Output Pair Pins. Since this is an isolated output, the
polarity is not important.

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Software Installation
Windows Installation
Do not connect the SeaLINK DIO-32.PCI adapter to the hose USB device until the software has
been fully installed.
Only users running Windows 7 or newer should utilize these instructions for accessing and installing
the appropriate driver via Sealevel’s website. If you are utilizing an operating system prior to
Windows 7, please contact Sealevel by calling 864.843.4343 or emailing [email protected] to
receive access to the legacy driver download and installation instructions.
1. Begin by locating, selecting, and installing the correct software from the Sealevel software
driver database.
2. Type in or select the part number (#8004e) for the adapter from the listing.
3. Select “Download Now” for SeaIO Classic for Windows.
4. The setup files will automatically detect the operating environment and install the proper
components. Follow the information presented on the screens that follow.
5. A screen may appear with text similar to: “The publisher cannot be determined due to the
problems below: Authenticode signature not found.” Please click the ‘Yes’ button and
proceed with the installation. This declaration simply means that the operating system is
not aware of the driver being loaded. It will not cause any harm to your system.
6. During setup, the user may specify installation directories and other preferred
configurations. This program also adds entries to the system registry that are necessary
for specifying the operating parameters for each driver. An uninstall option is also included
to remove all registry/INI file entries from the system.
The software is now installed, and you can proceed with the hardware installation.
Do not connect the hardware until the software has been successfully installed.
To install Sealevel software, you must log in as an administrator or have administrator privileges in
Windows.