Honeywell HC900 - Figure 81 Rack Monitor Function Block Example

Function Blocks
RACK Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 309
2/07
Outputs
RACK FAIL
= On indicates Rack other than Good
(Refer to Rack Diagnostics - Controller Diagnostics Status Indications in the
Hybrid Control Designer
User Guide for Fault diagnostics)
HITEMP = On indicates High RJ Temperature detected on AI board
(Refer to Expansion I/O Comm Diagnostics - Expansion I/O Comm Diagnostics Status Indications in the
Hybrid Control Designer User Guide for Fault diagnostics)
MODxx FAIL = On indicates Module other than Good.
(I/O Module Diagnostics - I/O Module Diagnostics Status Indications in the
Hybrid Control Designer User
Guide for Fault diagnostics)
The Status Indications will list the Error Status, possible causes of failure, controller actions, and User
action to remove failure.
Example
Figure 81 Rack Monitor function block example