Rockwell Automation T8094 8000 Series TMR System Safety Manual - Manual (Page 28)

SAFETY MANUAL
D oc N umber T8094
I ssue 27 – June 2013
Page 7 of 103
1.4 THE 8000 SERIES OVERVIEW
The TMR system is based on a triplicated microprocessor with internal redundancy of
all critical circuits. The system
controls complex and often critical processes in real
time - executing programs that accept external sensor signals, solving logic equations,
performing calculations for continuous process control and generating external control
signals. These user-defined application programs monitor and control real-world
processes in the oil and gas, refining, rail transit, power generation and related
industries across a wide range of control and safety applications. The TMR system is
certified for use in safety-related applications such as fire and gas detection, and
emergency shutdown up to requirements of IEC 61508 SIL 3.
Application programs for the TMR system are written and monitored using the
IEC1131 TOOLSET , a Microsoft ® Windows NT™, Windows 2000™, or Windows
XP™, based software suite running on a personal computer.
The TMR architecture provides a flexibility that allows each system to be easily
adapted to the different needs of any installation. This flexibility permits the user to
choose from different levels of I/O fault protection and provides a variety of I/O
interfacing and communications methods, thereby allowing the system to communicate
with other equipment and field devices.
Those elements of the system that are to be used in safety-related operations are
certified to IEC 61508 SIL 3. The remaining elements of the system are certified for
non-interfering operation.
This manual covers the release as specified in the certified module list.