Hot standby March 1st 2005 A distributed I/O system has been developed by Siemens Automation and Drives for potentially explosive environments.
The Simatic ET 200iSP (intrinsically safe for the process industry) is designed for direct use in gaseous and dusty atmospheres to Zone 1 as well as in Zone 21.
It has both a redundant Profibus and a redundant power supply.
The production process can continue following a failure or fault as ‘hot standby’ switch-over to the redundant Profibus line is within 100msec More articles from Siemens Moore Process Automation: |