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Safety system for large-scale plant applications

09 November 2009

Yokogawa Electric Corporation has released the ProSafe-RS R2.03.00, an enhanced version of the ProSafe-RS Safety Instrumented System. The enhancements include a new CPU module that is 3.5 to 4 times faster than the module used in the preceding version and a new digital output module that is intended for use with higher voltage devices.

Safety instrumented system for large-scale plant applications
Safety instrumented system for large-scale plant applications

This system satisfies users' latest safety instrumentation requirements, improves efficiency, and ensures operational safety.

The CPU module has a processing speed that is 3.5 to 4 times faster than the module used in the preceding version. The number of I/O points has been increased to 1500, an increase of nearly 50%, and application capacity has been increased by 50%. These enhancements make the system ideal for use in large-scale plants.

A digital output module has been added that enables ProSafe-RS to be directly connected to 48 V DC field devices such as valves. This elimination of the need to supply power through a relay allows a simpler and more cost-effective system configuration that is easier to maintain.
A function has been added that allows the installation of I/O modules without disrupting input/output to or from any connected devices. The scan frequency can also be changed online.

This ability to reconfigure the safety instrumented system without halting plant operations improves productivity.

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