Honeywell HC900 - Removal and Replacement Procedures; Safety Considerations - PLAN AHEAD!

182 HC900 Process & Safety Controller User and Installation Manual Revision 6
21 April 2017
Scanner indicators
Figure 90 – LED Indicators on Scanners—1 port (left), 2 port (right) (See Table 28)
When the Scanner is flashing an amber Status LED after power-up a power-on-self-test error has occurred
that requires scanner module replacement.