Honeywell HC900 - Page 8

viii HC900 Process & Safety Controller Safety Manual Revision 1.9
01/14
Tables
Table 1 – IEC 61508 versus IEC 61511 terminology ............................................................................................ 2
Table 2 – Descriptions of Major Components .................................................................................................... 10
Table 3 – Descriptions of Major Redundancy Components ................................................................................. 12
Table 4 – Function Blocks ................................................................................................................................. 17
Table 5 – Status Indicators ................................................................................................................................. 52
Table 6 – SIL Levels ......................................................................................................................................... 55
Table 7 – Diagnostic Test Intervals .................................................................................................................... 57
Figures
Figure 1 – Small HC900 Controller Configuration ............................................................................................... 5
Figure 2 – Expanded HC900 Controller Configuration ......................................................................................... 6
Figure 3 – Single process with redundancies ........................................................................................................ 7
Figure 4 – Configuration with Multiple Controllers .............................................................................................. 9
Figure 5 – Redundant Configuration with multiple I/O racks .............................................................................. 11
Figure 6 – Two safety applications process with redundancies (C75 CPU only) .................................................. 14
Figure 7 – Analog Input Voting Block ............................................................................................................... 42
Figure 8 – Analog Output Validation Block ....................................................................................................... 43
Figure 9 – Digital Input Voting Block ................................................................................................................ 43
Figure 10 – Digital Output Validation Block ...................................................................................................... 43
Figure 11 – Fault Monitor Block ........................................................................................................................ 44
Figure 12 – IO-V function block connections .................................................................................................... 46
Figure 13 – Individual Series DO connections .................................................................................................... 47
Figure 14 – Common Series DO connections ..................................................................................................... 47
Figure 15 – Series Relay for Analog Outputs ..................................................................................................... 48
Figure 16 – Safety Dataflow .............................................................................................................................. 49
Figure 17 – Sample controlled start-up configuration ......................................................................................... 50
Figure 18 – Sample VFAIL qualification ........................................................................................................... 50