SeaLevel ULTRA 485 User manual

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© Sealevel Systems, Inc. 3055 Manual | SL9139 6/2021
Ultra 485™
User Manual | 3055

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© Sealevel Systems, Inc. 3055 Manual | SL9139 6/2021
Contents
CONTENTS...........................................................................................................................................................2
INTRODUCTION ...................................................................................................................................................3
BEFORE YOU GET STARTED ...............................................................................................................................4
CARD SETUP ........................................................................................................................................................6
SOFTWARE INSTALLATION ..............................................................................................................................13
HARDWARE INSTALLATION .............................................................................................................................14
TECHNICAL DESCRIPTION ...............................................................................................................................15
SPECIFICATIONS ...............................................................................................................................................16
APPENDIX A –TROUBLESHOOTING................................................................................................................17
APPENDIX B –HOW TO GET ASSISTANCE .....................................................................................................18
APPENDIX C –ELECTRICAL INTERFACE ........................................................................................................19
APPENDIX D –ASYNCHRONOUS COMMUNICATIONS ..................................................................................20
APPENDIX E - COMPLIANCE NOTICES ............................................................................................................21
WARRANTY ........................................................................................................................................................22

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© Sealevel Systems, Inc. 3055 Manual | SL9139 6/2021
Introduction
The Sealevel Systems ULTRA 485 provides the PC with an additional RS-422/485 serial port for terminals,
PLC communication, laboratory instrumentation, etc.
The unique feature of the ULTRA 485 is the ability to be RS-485 compatible without the need for special
software or drivers. This is especially useful in Windows, Windows NT, and OS/2 environments where the
lower level I/O control is abstracted from the application program. Which means that the user can
effectively use the ULTRA 485 in an RS-485 application with existing (i.e., standard RS-232) software drivers.

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© Sealevel Systems, Inc. 3055 Manual | SL9139 6/2021
Before You Get Started
What’s Included
The Ultra 485 is shipped with the following items. If any of these items are missing or damaged, please
contact Sealevel for replacement.
•Ultra 485 Serial I/O 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.

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© Sealevel Systems, Inc. 3055 Manual | SL9139 6/2021
Factory Default Settings
The Ultra 485 factory default settings are as follows:
Port #
Base Address
IRQ
Electrical Specification
Port 1
280
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RS-485 ‘Auto’
To install the Ultra 485 using factory default settings, refer to Installation.
For your reference, record installed Ultra 485 settings below:
Port #
Base Address
IRQ
Electrical Specification