September 2006 . Volume 5. Issue 9

Welcome to Sealevel Systems' monthly newsletter. The goal is to help our valued customers easily receive timely updates on the latest Sealevel developments. We appreciate your business and continue striving to be the best communications and I/O solutions provider in the market.

In This Issue:

New 802.11b/g Connectivity for SeaI/O Data Acquisition Modules

Sealevel is expanding our popular SeaI/O data acquisition line with the introduction of new wireless SeaI/O modules at the ISA 2006 exhibition in Houston next month. Choose from a variety of I/O options including Reed and Form C relays, optically isolated inputs, TTL interface to industry standard solid-state relay racks, A/D and D/A functionality. Connect to your SeaI/O network from any 802.11b/g host. All wireless SeaI/O modules offer WEP and WPA encryption for secure, reliable communications.

For maximum configurability, multiple units of any I/O type can be easily daisy chained together using convenient pass-through connectors. Removable terminal blocks are standard, enabling fast, versatile field wiring. SeaI/O modules operate from 9-30VDC, and power can be input via terminal block or DC jack. For easy software integration, application programs or 3rd party software can use the Sealevel SeaMAX library or industry-standard Modbus protocol. Both table mount and DIN rail mounting options are available, and installation is easy using Sealevel’s software configuration tools.

If you'd like complimentary tickets to the ISA 2006 exhibition in Houston, October 17th-19th, please click here and we'll be happy to send you a pass. You can find more details and travel information at


See our current SeaI/O data acquisition offering on the Sealevel website.

SeaPAC Flat Panel Computers Offer SeaI/O Expansion

Control your wireless SeaI/O data acquisition network with our SeaPAC™ family of flat panel touchscreen computers. Available with bright, AMTFT LCDs ranging in size from 6.4” to 17”, SeaPAC products offer unprecedented versatility and expandability. The systems are perfect for a variety of industrial control, machine interface, and point-of-sale applications where small size and extreme reliability are required.

Powered by a high-performance, low-power 1GHz Intel® Celeron® M processor, SeaPACs are equipped with robust standard I/O features including 10/100BaseT Ethernet, two serial ports, and three high-speed USB 2.0 ports. For flexible local and remote I/O expansion, SeaPACs expand using Sealevel’s SeaI/O data acquisition modules. Choose from Reed and Form C relays, optically isolated inputs, TTL interfaces, A/D and D/A options. The SeaPAC’s processor subsystem communicates with SeaI/O modules using Modbus RTU allowing one or more SeaI/O modules to be physically attached to the SeaPAC or located remotely up to 4000 feet away. Both the processor and I/O modules can be easily removed from the display assembly, making field upgrades easy.

Windows® XP Embedded is a perfect operating system choice for SeaPAC systems. Sealevel offers application assistance for efficiently transferring customer applications to the XPe platform. For users that require disk storage, a high-temperature hard drive is available.

For more information on SeaPAC Touchscreen HMI systems, visit the Sealevel Industrial Computing webpage for more information.

Third Party Software Simplifies Application Development

DAQFactory from AzeoTech, Inc. is a complete measurement and automation software solution. With DAQFactory you can acquire data, log it, display it on the screen, graph it, analyze it, share it on a network, and automate your application. Precise time driven acquisition and control along with the advanced data analysis features make DAQFactory perfect for a variety of control and monitoring applications. The software's built-in Modbus capabilities make integration with Sealevel SeaI/O modules a snap.

For more information on DAQFactory, please visit the AzeoTech website.

Read Chapter 4 of The Digital I/O Handbook Free Online!

If your duties require interfacing computers to real world digital inputs and outputs, you'll want a copy of The Digital I/O Handbook. Coauthored by well-known technical author Jon Titus and Sealevel Systems' President and CEO Tom O'Hanlan, the book includes an array of useful information on hardware and software topics. Each month we are releasing a new chapter online. This month we are featuring the 4th and final Chapter ‘Sensor Interfacing". The book may also be purchased from our website and is free upon request with the purchase of qualifying Sealevel digital I/O products.

Visit The Digital I/O Handbook webpage for details and read Featured Chapters, free online.

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