Fail-safe modules for I/O system
Siemens Simatic fail-safe I/O modules are suitable for many applications, including fire and gas equipment.
Siemens introduced three fail-safe modules for the SIMATICR ET 200iSP intrinsically safe distributed I/O system. The new modules 8F-DI Ex Namur, 4F-DO Ex 40mA/17.4V and 4F-AI Ex HART reportedly meet the high safety requirements in accordance with the relevant standards such as IEC 61508 to SIL 3, ISO 13849-1 to PLe.
The modules are suitable for applications including emergency shutdown (ESD), boiler protection or fire and gas equipment. For fire and gas applications, the modules reportedly offer important Last valid Value and Energize-to-Trip diagnostics functions.
- Edited by Chris Vavra, Control Engineering, www.controleng.com
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.