Honeywell HC900 Safety Manual

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

Honeywell HC900 Specifications

General

Series	HC900
Redundancy	Optional
Programming Language	Function Block Diagram, Ladder Logic, Structured Text
Inputs	Analog, Digital
Outputs	Analog, Digital, Relay
Display	Optional
Control	PID, Advanced Control
Power Supply	24V DC or 100-240V AC
Storage Temperature	-40°C to 85°C
Humidity	5% to 95% non-condensing
Communication Protocols	Modbus, Ethernet