Wireless I/O module pair
This pair of wireless I/O modules requires no software or PC connection and can be driven by either dc or ac signal sources.
Model WWP-IIRO-8 is a pair of intelligent 16-channel digital I/O units that communicate directly with each other. Each unit contains 8 Form C (SPDT) electromechanical relays and 8 optically isolated digital inputs. When an isolated input is toggled on one of the units, it will cause the corresponding relay to switch on the other unit. No software or PC connection is required as this solution is completely self-contained and operates autonomously. The units are packaged in small, rugged, NEMA4 enclosures, and offer a low-cost alternative to costly signal wire installations. They can operate at distances up to 7 miles line-of-sight via a 900 MHz wireless connection (up to 20 miles with optional high-gain antenna). The eight isolated inputs can be driven by either dc sources of 3-31 V (or higher by special order), or ac sources at frequencies of 40 Hz to 10 kHz and are not polarity sensitive.
ACCES I/O Products Inc.
Annual Salary Survey
After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.
The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.