Honeywell 900U02-0100 - Page 10

x ControlEdge HC900 Process & Safety Controller User and Installation Manual Revision 10
May 2019
9. Redundant Operating Characteristics ......................................................... 173
9.1. Overview ................................................................................................................................ 173
9.2. Start-Up ................................................................................................................................. 173
9.3. Modes of operation (Figure 100) ........................................................................................... 173
9.4. Steady State Operations ....................................................................................................... 175
9.5. Failover .................................................................................................................................. 177
9.6. File Download/Upload Functions ........................................................................................... 177
10. Diagnostics and Troubleshooting ................................................................ 179
10.1. Overview ................................................................................................................................ 179
10.2. External Indications of Diagnostic Information ...................................................................... 179
10.3. Controller CPU indicators ...................................................................................................... 180
10.4. Scanner indicators ................................................................................................................. 190
10.5. I/O Module Indicators ............................................................................................................ 195
11. Analog Calibration ....................................................................................... 200
11.1. Overview ................................................................................................................................ 200
12. Removal and Replacement Procedures ...................................................... 204
12.1. Overview ................................................................................................................................ 204
12.2. Safety Considerations - PLAN AHEAD! ................................................................................ 204
13. Specifications .............................................................................................. 214
13.1. General Specifications (Refer to Specification manual) ........................................................ 214
13.2. System Sizing and Availability Summary .............................................................................. 217
13.3. Extended distance configuration with Fiber Optics ............................................................... 218
14. Appendix - Installation of Remote Termination Panels (RTPs) .......................... 221
14.1. Overview ................................................................................................................................ 221
14.2. Analog Input........................................................................................................................... 222
14.3. Relay Output .......................................................................................................................... 229
14.4. Analog Input/Digital Input/Digital Output/Analog Output ....................................................... 232
15. Declaration of Conformity ............................................................................ 259
16. ATEX Certification ....................................................................................... 260