SeaLevel ISO-16.PCI User manual

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© Sealevel Systems, Inc. 8006e Manual | SL9236 9/2021
ISO-16.PCI
User Manual | 8006e

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© Sealevel Systems, Inc. 8006e Manual | SL9236 9/2021
Contents
CONTENTS............................................................................................................................................................................................................................2
BEFORE YOU GET STARTED..............................................................................................................................................................................................3
PRODUCT DESCRIPTION...................................................................................................................................................................................................4
ELECTRICAL SPECIFICATIONS .........................................................................................................................................................................................6
TECHNICAL SPECIFICATIONS............................................................................................................................................................................................7
HARDWARE INSTALLATION..............................................................................................................................................................................................8
PROGRAMMING THE ISO-32.PCIE................................................................................................................................................................................10
EXAMPLE CIRCUITS .........................................................................................................................................................................................................16
SOFTWARE INSTALLATION ..............................................................................................................................................................................................17
APPENDIX A –HANDLING INSTRUCTIONS.................................................................................................................................................................19
APPENDIX B –TROUBLESHOOTING.............................................................................................................................................................................20
APPENDIX C –HOW TO GET ASSISTANCE..................................................................................................................................................................23
APPENDIX D - DRAWING ................................................................................................................................................................................................24
APPENDIX E –COMPLIANCE NOTICES ........................................................................................................................................................................25
WARRANTY ........................................................................................................................................................................................................................26

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© Sealevel Systems, Inc. 8006e Manual | SL9236 9/2021
Before You Get Started
What’s Included
The 8006e is shipped with the following items. If any of these items are missing or damaged, please
contact Sealevel for replacement.
•8006e - ISO-16.PCIe Digital I/O Adapter
o8006e –Board with 3-13V inputs
o8006He –Board with 10-30V inputs
•DB78 Male to DB37 Female cable (Item# CA489)
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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Product Description
The ISO-16.PCIe digital I/O interface provides 16 optically isolated inputs. The inputs protect the PC and
other sensitive equipment from spikes and ground loop current that can be generated in industrial
environments.
The SeaI/O Classic software drivers and utilities 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 8006e are rated for 3-13V. The inputs on the 8006He 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
•Power (+5V and +12V) and ground provided on DB78 board connector
•Includes 72” cable with DB78 Male connector to DB37 Female connectors (Item#
CA489)
•SeaI/O Classic software supports Windows 7, Vista, and XP operating systems
•Software support for Linux available

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© Sealevel Systems, Inc. 8006e Manual | SL9236 9/2021
Optional Items
Depending upon your application, you are likely to find one or more of the following items useful with the
8006e. All items can be purchased from our website (www.sealevel.com)by calling our sales team at
[phone].
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 8006e. 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 8006e PCIe board while preserving existing
infrastructure wiring. The CA378 connects to the 8006e
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 eight-bit input ports
•DB-37 Female connector for optically isolated inputs
•Multiple adapters can reside in same computer
Input Ports
Turn On Current
3 mA
Isolator Diode Drop
1.1 VDC
Resistor Power Max
.25W
Contact Resistance, Initial
.15 
Maximum Input Range
3 –13 VDC/VAC
Maximum Input Current
50 mA

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Technical Specifications
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.
Physical Dimensions
PCB length
6.5”(16.5 cm)
PCB Height
4.2 (10.7 cm)

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© Sealevel Systems, Inc. 8006e Manual | SL9236 9/2021
Hardware Installation
Do not install the PCI Express board until the software has been successfully installed.
The ISO-16.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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HARDWARE INSTALLATION, CONTINUED
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 the ‘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 8006e’ with the card number in
parentheses. The card number will increment for each additional SeaI/O device installed.
The ISO-16.PCIe is now ready for use.

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Programming the ISO-32.PCIe
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. The SeaI/O Classic software contains
driver functions for use in accessing the I/O as well as helpful samples and utilities.
Programming for Windows
The SeaI/O Classic 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 ISO-32.PCIe. If you are
programming in Visual Basic 6 or earlier, 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 disk 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.
Digital I/O Interface
The ISO-16.PCIe provides two parallel input ports. The ports are organized as ports A, B. Port A and B are
input ports interfaced to optically isolated inputs. 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

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PROGRAMMING THE ISO-32.PCIE, CONTINUED
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 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
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))

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PROGRAMMING THE ISO-32.PCIE, CONTINUED
The following table shows common input resistors and the ranges associated with each.
Input Resistor
Turn-On
Input Range
Max Input
Max Current
220
1.8V
1.8 –7.0V
8.5V
27mA
560
2.8V
2.8 –10.6V
12.9V
20mA
1K
4.1V
4.1 –13.8V
16.9V
15mA
2.2K
7.7V
7.7 –20.0V
24.5V
10mA
3.3K
10.0V
10.0 –24.0V
30.0V
9mA
4.7K
15.2V
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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PROGRAMMING THE ISO-32.PCIE, CONTINUED
Input Ports Pin Assignments (DB-37 Female)
Inputs are interfaced via the DB-37 female connector on the supplied CA489 cable.
Signal Name
Port A Input Pin
Pairs
Part A Bit 0
18,37
Part A Bit 1
17,36
Part A Bit 2
16,35
Part A Bit 3
15,34
Part A Bit 4
14,33
Part A Bit 5
13,32
Part A Bit 6
12,31
Part A Bit 7
11,30
Part B Bit 0
10,29
Part B Bit 1
9, 28
Part B Bit 2
8,27
Part B Bit 3
7,26
Part B Bit 4
6,25
Part B Bit 5
5,24
Part B Bit 6
4,23
Part B Bit 7
3,22
Ground
2,20,21
+5 Volts
19
+12 Volts
1

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PROGRAMMING THE ISO-32.PCIE, CONTINUED
DB-78 Female Pin Assignments (Card Edge Connector)
Bit
Port A Pins
Port B Pins
0
55,74
47,66
1
54,73
46,65
2
53,72
45,64
3
52,71
44,63
4
51,70
43,62
5
50,69
42,61
6
49,68
41,60
7
48,67
40,59
GND
39,57,58
18,36,37
+12V
38
1
+5V
56
19

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PROGRAMMING THE ISO-32.PCIE, CONTINUED
Direct Hardware Control
In systems where the user’s program has direct access to the hardware (DOS) the tables that follow give
the mapping and functions that the ISO-16.PCIe provides.
Function Available
Port
Address Hex
Port Type
RD
A
Base + 0
RD
B
Base + 1
Optically Isolated Input Port
RD = Read
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.
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

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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.

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Software Installation
Operating System Installation
This section contains helpful information pertaining to the installation of supported Sealevel Systems, Inc.
software packages. The SeaIO software includes drivers, utilities, and programming samples for Windows
and Linux to aid in the development of reliable applications for the Sealevel Systems family of Digital I/O
adapters.
For Windows Users
Begin by locating, selecting, and installing the correct software from the Sealevel software driver database.
1. Sealevel software for Windows and Linux operating systems is available at these links:
•Software for Windows
•Software for Linux
2. Choose the link for the desired software package and click on the ‘Download File’ link to
download the current driver.
3. Proceed to the Manual Software Installation guide for your operating system.
SeaIO Software can also be downloaded from the 8006e-product page: ISO-16.PCIe - PCI Express 16
Isolated Input Digital Interface (3-13V)
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.
Other Operating Systems
Refer to the appropriate section of the Serial Utilities Software.

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Software installation, continued
Linux Installation
Refer to Linux Archives - Sealevel. This link contains valuable information on installing your serial
adapter in the various Linux releases. Also included is a series of files explaining proper Linux syntax and
typical Linux serial implementations.
For additional software support, please call Sealevel Systems’ Technical Support, [phone]. Our
technical support is free and available from 8:00AM-5PM Eastern Time, Monday through Friday. For email
support contact: mailto:supp[email protected].
Most Sealevel Linux software is distributed as source code. To use the software, it must be
compiled. Refer to the README file in each package for system prerequisites.
You must have administrative privileges to install the software. It is not necessary to have
administrative privileges to build or use the software.
All command syntax is case sensitive.

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© Sealevel Systems, Inc. 8006e Manual | SL9236 9/2021
Appendix A –Handling Instructions
ESD Warnings
Electrostatic Discharges (ESD)
A sudden electrostatic discharge can destroy sensitive components. Proper packaging and grounding
rules must therefore be observed. Always take the following precautions:
1. Transport boards and cards in electrostatically secure containers or bags.
2. Keep electrostatically sensitive components in their containers, until they arrive at an
electrostatically protected workplace.
3. Only touch electrostatically sensitive components when you are properly grounded.
4. Store electrostatically sensitive components in protective packaging or on anti-static mats.
Grounding Methods
The following measures help to avoid electrostatic damages to the device:
1. Cover workstations with approved antistatic material. Always wear a wrist strap connected to a
properly grounded workplace.
2. Use antistatic mats, heel straps, and/or air ionizers for more protection.
3. Always handle electrostatically sensitive components by their edge or by their casing.
4. Avoid contact with pins, leads, or circuitry.
5. Turn off power and input signals before inserting and removing connectors or connecting test
equipment.
6. Keep work area free of non-conductive materials such as ordinary plastic assembly aids and
Styrofoam.
7. Use field service tools such as cutters, screwdrivers, and vacuum cleaners that are conductive.

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Appendix B –Troubleshooting
Sealevel Software is supplied with the Sealevel Systems adapter and will be used in the troubleshooting
procedures. By using this software and following these simple steps, most common problems can be
eliminated without the need to call Technical Support.
1. Install software first. After installing the software then proceed to adding the hardware.
This places the required installation files in the correct locations.
2. Read this manual thoroughly before attempting to install the adapter in your system.
3. Use Device Manager under Windows to verify proper installation. Refer to the Verifying
Hardware section of this manual for instructions.
4. Several utilities with source code are included to verify the functionality of the inputs and
outputs and to aid in application development. To test the inputs, you need to supply the
turn-on voltage with a minimum of 3mA (maximum input current is 50mA) to trigger an
input. Consult the pin out diagrams to test at the card edge connector or at the end of the
cable.
5. Use the VCTest to verify the basic I/O functionality of your digital I/O board. The source
code is included to simplify application development in the programming language C.