July 2006 . Volume 5. Issue 7

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:

Sealevel Introduces New SeaI/O Multifunction Analog and Digital Combo Module!

We’ve expanded the popular SeaI/O family of data acquisition devices with the recent introduction of the SeaI/O-470 multifunction module.  Offering a powerful combination of analog and digital I/O, SeaI/O-470 modules are perfect for a wide variety of applications and environments including process control, data acquisition, broadcast automation, security, and facility management.

The SeaI/O-470 provides 16 single-ended or eight differential 12-bit analog inputs, two 12-bit D/A outputs, eight optically isolated digital inputs, and eight open collector digital outputs. The module’s A/D inputs are independently software selectable for 0-5V, 0-10V, +/-5V, and +/-10V ranges and can be configured for measuring 0–20mA current loop.  The A/D channels feature 5MHz bandwidth track/hold and 100ksps throughput.  The module’s D/A channels are independently jumper selectable for 0-5V or 0-10V output range. Eight digital inputs are rated for 5-30VDC and provide 300V external isolation, while the SeaI/O-470’s eight open collector outputs are ideal for switching 24V devices commonly found in industrial control applications.

Ordering options allow connection to the host device via Ethernet (Modbus TCP), RS-485 (Modbus RTU), USB, or RS-232.  Field removable terminal blocks are standard, facilitating fast, flexible field wiring.  SeaI/O modules operate from 9-30VDC, and power can be input via terminal block or DC jack. Both table mount and DIN rail mounting options are available, and installation is made easy using Sealevel’s software configuration tools.

Call today or visit the SeaI/O-470 webpage for more information.

Build a Powerful SeaI/O Network with SeaI/O N-series Expansion Modules

SeaI/O N-Series expansion modules communicate with SeaI/O base modules via RS-485 (Modbus RTU) and allow mixing and matching up to 246 expansion units to create the most efficient I/O configuration for your application.  Expansion modules can be located together with the base module, or a network of expansion modules can be daisy chained throughout your facility using inexpensive CAT5 cabling connecting the RJ45 pass-through connectors included on each SeaI/O device.

Choose from a variety of SeaI/O expansion modules offering Reed and Form C relays, optically isolated inputs, TTL interface to industry standard solid-state relay racks, A/D and D/A functionality.  Removable screw terminals simplify field wiring and an assortment of mounting brackets allows installation in racks, on DIN rails, to walls, or under counters.  Also included is the SeaMAX Software Suite providing configuration and diagnostic utilities that facilitate rapid application development.

Visit the SeaI/O N-series expansion modules webpage for more information.

R1000 Embedded I/O Server Now Available with 1GHz Celeron M Processor and Ruggedized Hard Drive!

Text Box:  Designed with the same footprint as Sealevel SeaI/O modules for easy stacking, the Relio R1000 embedded computer is the perfect controller for your SeaI/O network. R1000s are now available with a high-performance, low-power 1GHz Intel Celeron M processor and are packed with standard I/O including analog video, 10/100BaseT Ethernet, two serial ports, and three high-speed USB 2.0 ports.  The system is powered by 9-30VDC, and power is provided to SeaI/O expansion modules using convenient pass-through connectors.

Windows® XP Embedded is a popular operating system choice for R1000 systems that allows the user application to run from CompactFlash for maximum reliability. Sealevel offers application assistance for efficiently transferring customer applications to the XP Embedded platform.  For applications requiring the storage capacity of a hard drive, a new industrial grade 20GB drive that maintains the R1000’s 0-50°C operating temperature range is now available.

Please visit the Relio R1000 webpage for more information.

Read Chapter 2 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 HandbookCoauthored 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.  Last month we published Chapter 1 ‘Logic Principles’ online.   This month we are featuring Chapter 2 ‘Digital Outputs’.  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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