Parameters accessible with Function Code 03, 06,10h 
Fixed Map 
Revision 13  HC900 Process Controller Communications User Guide  45 
April 2017 
Fixed 
Start 
Address 
(hex) 
Loop #23 (floating point & bit packed) 
Loop #24 (floating point & bit packed) 
Analog Input Value (#1-#64) First 8 slots of Rack #1 only - Function Code 03 
Variable Value (#1 - #600)  
Set Point Programmer #1 (Additional Values) 
Set Point Programmer #2 (Additional Values) 
Set Point Programmer #3 (Additional Values) 
Set Point Programmer #4 (Additional Values) 
Signal Tags (#1 - #1000) (legacy) 
Set Point Programmer #1 Segments  
Set Point Programmer #2 Segments 
Set Point Programmer #3 Segments 
Set Point Programmer #4 Segments 
Signal Tags (#1 - #4000) (HC900) 
Sequencer #1 Step 1 Table (64 steps in sequence) 
Sequencer #2 Step 1 Table (64 steps in sequence) 
Sequencer #3 Step 1 Table (64 steps in sequence)