Forward to a Friend
Subscribe to this Newsletter

	Question: How many songs in the movie, “The Commitments”, are written by Dan Penn? Click here if button does not work LAST MONTH'S TRIVIA Question: Get out your Ray Bans. This 80’s one hit wonder band’s song was really about nuclear holocaust, not a positive future. Answer: Timbuk3, ''The Future's So Bright, I Gotta Wear Shades''

RISC Computing Featured at ISA 2009

If you visited Sealevel’s booth at ISA 2009, you saw firsthand some capabilities of our RISC-based Relio R9. The Relio R9 was used to demonstrate signage status monitoring from remote locations. The system maximizes equipment efficiency by detecting partial failure and minimizing maintenance. In addition to monitoring and control, the Relio R9 is the perfect platform for embedded applications requiring small size, wide operating temperature range, and flexible I/O connectivity.

Need an All-In-One Remote Monitoring & Control Solution?

Sealevel’s Relio RMS-1000 system brings unprecedented capabilities to broadcast monitoring, communications, IT infrastructure management, and facility security applications. Relio RMS-1000 offers impressive processing power, real-time I/O status display, flexible alarm options (email, SNMP, and voice), and a user-friendly programming interface in a 1U rackmount enclosure.

Tech Lowdown
How Can I Use a Quadrature Counter for Monitoring and Control?

A quadrature counter monitors the output of a DC motor equipped with an optical encoder to detect the exact position, speed, and direction of a motor shaft.

A standard optical encoder has two output channels (labeled “A” and “B”) that are 90 degrees out of phase. These channels may be read by a quadrature counter to detect the direction and speed of the shaft. A separate output (labeled “Index/”), generated from a reference point on the shaft, can be used to count revolutions or reset the counters.

Optical encoders coupled with quadrature counters offer high resolution and reliability. They are used to synchronize moving parts for trouble-free operation. Devices commonly equipped with optical encoders include conveyors, radar domes, drive shafts, desktop printers, camera lenses and trackball mice. For more information see Example 5 in Chapter 4 of our Digital I/O Handbook written by Tom O’Hanlan and Jon Titus.