ATLANTA, October 23, 2006 – The Sitrans P DSIII digital pressure transmitter from Siemens Energy & Automation, Inc. is the first Profibus PA device available on the market that is designed for SIL2 safety shutdown in accordance with IEC 61508/IEC 61511-1.In the Sitrans P DSIII, a Profisafe driver has been added to the standard pressure transmitter enabling the fail-safe transfer of the measured values via Profibus. The measure values, which are determined several ways and compared internally, include pressure, absolute pressure, differential pressure, flow and level. Through Profibus PA, the Sitrans P DSIII is connected with a Simatic S7400 controller that triggers a safe shutdown, such as the Sipart PS2 PA electro-pneumatic Profibus-PA positioner.
In the case of "redundant/diverse" design, measuring circuits up to safety level SIL3 can be established.With the Simatic PDM configuration tool, Sitrans P DSIII is started up as a regular Profibus-PA device and then the Profisafe safety functions are activated. The files required for this, such as the "Device Description" and the "Safety Manual", are available on www.siemens.com/sitransp.
About Siemens
Siemens Energy & Automation, Inc. is one of Siemens’ operating companies in the U.S. Headquartered in the Atlanta suburb of Alpharetta, Ga., Siemens Energy & Automation manufactures and markets one of the world’s broadest ranges of electrical and electronic products, systems and services to industrial and construction market customers.
Its technologies range from circuit protection and energy management systems to process control, industrial software and totally integrated automation solutions. The company also has expertise in systems integration, technical services and turnkey industrial systems. Siemens AG (NYSE:SI) is one of the largest global electronics and engineering companies with reported worldwide sales of $96 billion in fiscal 2005. Founded nearly 160 years ago, the company is a leader in the areas of Medical, Power, Automation and Control, Transportation, Information and Communications, Lighting, Building Technologies, Water Technologies and Services and Home Appliances.
With its U.S. corporate headquarters in New York City, Siemens in the USA has sales of $18.8 billion and employs 70,000 people throughout all 50 states and Puerto Rico. Eleven of Siemens' worldwide businesses are based in the United States.
With its global headquarters in Munich, Siemens AG and its subsidiaries employ 460,000 people in 190 countries.
