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Register Map for Process and Operation Type Variables
Hand/OFF/Auto Control Group Register Map
Revision 4 HC900 Hybrid Controller Communications User Guide 75
9/03
6.22 Hand/OFF/Auto Control Group Register Map
Summary
This table contains Hand/Off/Auto Map addresses of HOA Group #1.
See the HOA Register Maps Table 6-1 for starting and ending addresses (hex) for Hand/Off/Auto
Group #2 through Hand/Off/Auto Group #16 Map Addresses.
The Modbus HOA number address for a HOA can also be obtained from the Hybrid Control Designer
printout of "Block Modbus Addresses".
Function Code Support:
Reads – Function Code 3
Writes – Function Code 16 (10 hex) for preset of multiple registers (e.g., for floating point)
Writes – Function Code 6 for presetting an integer value
Table 6-29 HOA Control #1 Group Register Map
Address
(hex)
Register
(decimal)
Parameter Name Access Notes
6600 26113 Status R Bit Packed
Bits 0 – 3: Hand-Off-Auto State
Bit 0: Off : 0=NO, 1=YES
Bit 1: Hand: 0=NO, 1=YES
Bit 2: Auto: 0=NO, 1=YES
Bit 3: Bypass: 0=NO, 1=YES
Bit 4: Request Output
0 = OFF, 1 = ON
Bit 5: Local Source ON: 0=NO, 1=YES
Bit 6: Remote Source ON: 0=NO, 1=YES
Bit 7: Local and Remote ON: 0=NO, 1=YES
Bit 7-15: Unused
6601 26114 Remote Off-state
Change Request
W Unsigned 16 Integer
Data Ignored
6602 26115 Remote Hand-state
Change Request
W Unsigned 16 Integer
Data Ignored
6603 26116 Remote Auto-state
Change Request
W Unsigned 16 Integer
Data Ignored
6604 26117 Local Source W Unsigned 16 Integer
Data Ignored
6605 26118 Remote Source W Unsigned 16 Integer
Data Ignored
6606 26119 Local and Remote
Source
W Unsigned 16 Integer
Data Ignored