UFC760BE43 3BHE004573R0043 DCS / PLC system module ABB Control

Product Details

Product Description

Product Description
UFC760BE43 3BHE004573R0043 DCS / PLC system module ABB Control
UFC760BE43 3BHE004573R0043 DCS / PLC system module ABB Control
Our Email: 2235954483@qq.com
contact number:13313705507
contacts：HE
• The functional relationship between process inputs and outputs, including
logic, mathematical functions and any required permissive.
• Requirements for manual shutdown when applicable.
• Requirements related to energize or de-energize to trip.
• Requirements for resetting the SIS after shutdown.
• The maximum spurious trip rate shall be specified.
• Failure modes and desired response of the Safety Instrumented System.
• Any specific requirements related to starting up and restarting the SIS.
• All interfaces between the SIS and any other system as well as operators.
• The modes of operation of the plant and identification of the safety
instrumented functions required to operate within each mode.
• The application software safety requirements as listed in Application Safety
Requirement Specification on page 75.
• Requirements for overrides, inhibits and bypasses.
• Any action necessary to achieve or maintain a safe state in the event of fault(s)
being detected in the SIS, taking account for all relevant human factors.
• The mean time to repair that is feasible for the SIS.
• Potential dangerous combinations of output states of the SIS.
• The extremes of all environmental conditions likely to be encountered by the
SIS.
• Normal and Abnormal modes of Plant operation.
• Requirements for any SIF necessary to survive a major accident event.