SeaLevel DIO-32B User manual

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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
DIO-32B
User Manual | 3093H

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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
Contents
CONTENTS...........................................................................................................................................................2
INTRODUCTION ................................................................................................................................................... 3
BEFORE YOU GET STARTED ...............................................................................................................................4
CARD SETUP ........................................................................................................................................................6
SOFTWARE INSTALLATION................................................................................................................................8
PHYSICAL INSTALLATION..................................................................................................................................9
PROGRAMMING THE DIO-32B..........................................................................................................................10
ELECTRICAL CHARACTERISTICS.....................................................................................................................15
SPECIFICATIONS ...............................................................................................................................................15
EXAMPLE CIRCUITS ..........................................................................................................................................17
APPENDIX A – TROUBLESHOOTING................................................................................................................18
APPENDIX B – HOW TO GET ASSISTANCE .....................................................................................................19
APPENDIX C – SILK SCREEN – 3093H PCB ....................................................................................................20
APPENDIX D – COMPLIANCE NOTICES ..........................................................................................................21
WARRANTY ........................................................................................................................................................22

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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
Introduction
The DIO-32B digital I/O interface provides 16 optically isolated inputs and 16 reed relay outputs. The inputs
(rated for 10-30V) 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 DIO-32B is designed to be used with a variety of Operating Systems including Windows
98/NT/ME/2000/XP, Linux, and DOS. The SeaI/O API (Application Programmer Interface) available for the
DIO-32B 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. In addition to the API, SeaI/O includes sample code
and utilities to simplify software development.
Other Sealevel ISA Digital I/O Products
DIO-16 (P/N 3096) - 8 Reed Relay Outputs / 8 Opto-Isolated Inputs
ISO-16 (P/N 3094) - 16 Optically Isolated Inputs
REL-16 (P/N 3095) - 16 Reed Relay Outputs
REL-32 (P/N 3098) - 32 Switched Relay Outputs
PIO-48 (P/N 4030) - 48 TTL Inputs/Outputs

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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
Before You Get Started
What’s Included
The DIO-32B is shipped with the following items. If any of these items is missing or damaged, please
contact Sealevel for replacement.
•Item# 3093H – DIO-32B ISA Adapter
•Item# CA111 – 6” Ribbon Cable with IDC 20-Pin to DB-37 Male
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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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
Optional Items
Depending upon your application, you are likely to find one or more of the following items useful for
interfacing the DIO-32B to real-world signals. All items can be purchased from our website
(www.sealevel.com) or by calling [phone].
•DB-37 Male to DB-37 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.
•DB-37 Male/Female Terminal Block (Item# TB02-KT)
−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, therefore; it can be
used with any DB37 board regardless of the
board's port gender.
•Cable and Terminal Block Kit (Item# KT101)
−The KT101 includes the TB02 terminal block
and CA112 cable. To fully connect the DIO-32B
two KT101 kits will be required.

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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
Card Setup
The DIO-32B contains several jumper straps for each port that must be set for proper operation.
Address Selection
The DIO-32B occupies 4 consecutive I/O locations. The DIP-switch (SW1) is used to set the base address
for these locations. Be careful when selecting the base address as some selections conflict with existing
PC ports. The following table shows several examples that usually do not cause a conflict.
Address Binary Switch Settings
1 2 3 4 5 6 7 8
100-104 01 0000 00xx Off On On On On On On On
104-108
01 0000 01xx
Off
On
On
On
On
On
On
Off
200-204
10 0000 00xx
On
Off
On
On
On
On
On
On
280-283
10 1000 00xx
Off
On
Off
On
On
On
On
On
284-287
10 1000 01xx
Off
On
Off
On
Off
On
On
Off
2EC-2EF
10 1110 11xx
Off
On
Off
Off
Off
On
Off
Off
300-303
11 0000 00xx
Off
Off
On
On
On
On
On
On
320-323
11 0010 00xx
Off
Off
On
On
Off
On
On
On
388-38B
11 1000 10xx
Off
Off
Off
On
On
On
Off
On
3A0-3A3
11 1010 00xx
Off
Off
Off
On
Off
On
On
On
3A4-3A7
11 1010 01xx
Off
Off
Off
On
Off
On
On
Off
Address Selection Table
The following illustration shows the correlation between the DIP-switch setting and the address bits used
to determine the base address. In the example below, address 300 is selected as the base address. Address
300 in binary is XX 11 0000 00XX where X = a non-selectable address bit and address bit A9 is always a 1.
12 3 4 5 6 7
ON
OFF
A9 A2
8
DIP-Switch Illustration
The Setting the switch ‘On’ or ‘Closed’ corresponds to a ‘0’ in the address, while leaving it ‘Off’ or ‘Open’
corresponds to a ‘1’.

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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
IRQ Header E2
Interrupts can be generated by Port A, bit 0 going low if enabled at jumper location (E2). Interrupt request
signals 2/9 through 7 (IRQ 2/9 - 7) can be selected by placing the jumper in the appropriate position. Other
inputs can be ‘wire OR ed.’ to also generate interrupts if desired. Please consult the factory for more
information.
IRQ Header E2

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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
Software Installation
Windows Installation
Do not install the adapter in the machine 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. Select the download for the SeaIO Classic for Windows (Software: SeaIO Classic V5 - Windows
- Sealevel.) The setup file will automatically detect the operating environment and install the
proper components. Next (depending on your browser) select the ‘Run this program from its
current location’ or ‘Open’ option. Follow the information presented on the screens that follow.
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 available to remove SeaIO
files and registry/INI file entries from the system.
2. A screen may appear with the declaration: “The publisher cannot be determined due to the
problems below: Authenticode signature not found.” Please select 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.
3. 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.
Windows software installation is complete.
Windows NT Card Installation: After accomplishing the above steps, bring up the Control Panel and
double-click on the SeaIO Devices icon. To install a new card, click "Add Port". Repeat this procedure
for as many SeaIO cards as you wish to install.
Linux Software: You may download the SeaIO Classic for Linux Windows for the 3093H. If you need
additional information with this installation, please contact Sealevel’s Technical Support:
[email protected].

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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
Physical Installation
The adapter can be installed in any PCI expansion slot.
Do not install the adapter in the machine until the software has been fully installed.
1. Turn off PC power. Disconnect the power cord.
2. Remove the PC case cover.
3. Locate an available 5V PCI slot and remove the blank metal slot cover.
4. Gently insert the PCI adapter into the slot. Make sure that the adapter is seated
properly.
5. After the adapter has been installed, the cables should be routed thru the opening in
the bracket. This bracket also features a strain relief function that should be used to
prevent un-expected cable removal.
6. Replace the screw you removed for the blank and use it to secure the adapter into the
slot. (This is required to ensure FCC Part 15 compliance.)
7. Replace the cover.
8. Connect the power cord.
The DIO-32B is now ready for use.

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© Sealevel Systems, Inc. 3093H Manual | SL9024H 12/2022
Programming the DIO-32B
Sealevel’s SeaI/O software is available to assist in the development of reliable applications for the Sealevel
Systems family of digital I/O adapters. Included in Sealevel’s software and drivers 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 DIO-32B. 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 in the software
for the SeaI/O. Further documentation on these samples can be found by selecting
“Start/Programs/SeaIO/Sample Application Description.” If you have any problems locating these files,
please contact Sealevel’s Technical Support at 864-843-4343 or email [e-mail].
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.
Application Programmers Interface (API)
Most modern operating systems do not allow direct hardware access. The SeaIO driver and API have been
included to provide control over the hardware in Windows and Linux environments. The purpose of this
section of the manual is to help the customer with the mapping of the API to the actual inputs and relays
for the 3093H specifically. Complete documentation of the API can be found in its accompanying help file.
Digital I/O Interface
The DIO-32B 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 300 Hex the following table shows the Port Addresses.
Base Address
Hex
Decimal
Mode
Port A Address
300
768
Port B Address
301
769
Optically Isolated Input Port
Port C Address
302
770
Port D Address
303
771
Reed Relay Output Port