SeaLevel SeaPORT REL-16 User manual

1
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
REL-16
User Manual | 3095

2
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
Contents
CONTENTS............................................................................................................................................................................................................................2
INTRODUCTION...................................................................................................................................................................................................................3
BEFORE YOU GET STARTED..............................................................................................................................................................................................4
CARD SETUP........................................................................................................................................................................................................................6
INSTALLATION ......................................................................................................................................................................................................................7
PROGRAMMING THE REL-16 .........................................................................................................................................................................................10
ELECTRICAL CHARACTERISTICS...................................................................................................................................................................................13
SPECIFICATIONS...............................................................................................................................................................................................................14
EXAMPLE CIRCUITS .........................................................................................................................................................................................................15
APPENDIX A – TROUBLESHOOTING.............................................................................................................................................................................16
APPENDIX B – HOW TO GET ASSISTANCE...................................................................................................................................................................17
APPENDIX C – SILK SCREEN – 3095 PCB .................................................................................................................................................................18
APPENDIX D – COMPLIANCE NOTICES........................................................................................................................................................................19
WARRANTY ........................................................................................................................................................................................................................20

3
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
Introduction
The REL-16 provides 16 reed relay outputs. The outputs offer 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 will close when energized.
The REL-16 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) included on CD
with the REL-16 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
Model No.
Part No.
Description
DIO-16
(P/N 3096)
-8 Reed Relay Outputs / 8 Opto-Isolated Inputs
ISO-16
(P/N 3094)
- 16 Optically Isolated Inputs
DIO-32B
(P/N 3093)
- 16 Reed Relay Outputs / 16 Opto-Isolated
Inputs
REL-16
(P/N 3098)
- 32 Switched Relay Outputs
PIO-48
(P/N: 4030)
-- 48 TTL Inputs/Outputs

4
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
Before You Get Started
What’s Included
The REL-16 is shipped with the following items. If any of these items is missing or damaged, please
contact Sealevel for replacement.
•REL-16 Adapter
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.

5
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
Optional Items
Depending upon your application, you are likely to find one or more of the following items useful for
interfacing the REL-16 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 6’ Extension Cable (Item# CA112)
This cable extends the DB-37 connector on the CA172 cable an additional six feet and is pinned
one-to-one.
•DB-37 Male/Female Terminal Block (Item# TB02-KT)
Break out serial and digital connectors to 37 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)
For convenient and easier ordering, the KT101 includes the TB02-KT terminal block and CA112
cable in a single kit.

6
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
Card Setup
The REL-16 contains several jumper straps for each port that must be set for
proper operation.
Address Selection
The REL-16 occupies at total of 2 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.
DIP-Switch Illustration
Setting the switch ‘On’ or ‘Closed’ corresponds to a ‘0’ in the address, while leaving it ‘Off’ or ‘Open’
corresponds to a ‘1’.
1 2 3 4 5 6 7
ON
OFF
A9 A2
8

7
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
Installation
Software Installation
Windows Installation
Do not install the Adapter in the machine until the software had 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 proper driver download and installation
instructions.
1. Begin by locating, selecting, and installing the correct software from the Sealevel software driver
database.
2. Select the Part Number (3095) for your device from the listing.
3. Click the ‘Install Drivers’ button.
4. The setup file will automatically detect the operating environment and install the proper
components.
5. 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.
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.
To confirm that the SeaCOM driver has been successfully installed, click on the ‘Start’ button, and then
select ‘All Programs’. You should see the ‘SeaCOM’ program folder listed.
You are now ready to proceed with connecting the 3098 to your system. Refer to the Hardware
Installation section for details.
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.

8
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
Linux Installation
You MUST have “root” privileges to install the software and drivers.
The syntax is case sensitive.
SeaCOM for Linux can be downloaded here: https://www.sealevel.com/support/software-seacom-linux/.
It includes the README and the Serial-HOWTO help files (located at seacom/dox/howto). This series of
files both explains typical Linux serial implementations and informs the user about Linux syntax and
preferred practices.
User can use a program such as 7-Zip to extract the tar.gz file.
In addition, the software selectable interface settings can be accessed by referencing
seacom/utilities/3095mode.
To set up Linux to automatically load the driver; refer to a Linux manual concerning your specific distribution
for help.
For additional software support, including QNX, please call Sealevel Systems’ Technical Support, (864) 843-
4343. Our technical support is free and available from 8:00 AM - 5:00 PM Eastern Time, Monday through
Friday. For email support contact: [e-mail].

9
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
Physical Installation
The adapter can be installed in any ISA PC 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 REL-16 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 REL-16 is now ready for use.

10
© Sealevel Systems, Inc. 3095 Manual | SL9027 9/2022
Programming the REL-16
Sealevel’s SeaI/O software is provided to assist in the development of reliable applications for the Sealevel
Systems family of digital I/O adapters. The software also includes 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 ReL-16. 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/SeaI/O/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.
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 3095 specifically. Complete documentation of the API can be found in its accompanying help file.
Digital I/O Interface
The REL-16 provides two output ports. The ports, which are reed relay output ports, are organized as ports
A and B. Assuming an I/O address of 302 Hex the following table shows the Port Addresses.