Function Blocks
HOA Hand/Off/Auto Switch Function Block
Revision 11 HC900 Hybrid Control Designer Function Block Reference Guide 173
2/07
Block properties
The HAND/OFF/AUTO properties dialog box is divided into two tab cards:
GENERAL
FEEDBACK SIGNAL
Click on the tab to access the properties for that tab.
GENERAL tab
Table 54 HOA general tab parameters
Properties Group Parameter Index # Parameter Description Value or Selection
Tag Name
N/A 16-character tag name
Display
Descriptor
N/A Block description
HOA Source
N/A
Determines which devices
have permission to write
Hand-Off-Auto state change
requests.
Local (Local Operator Interface)
Remote (Serial Communications)
Local/Remote
Default = Local/Remote
Settings
Initial State
N/A
Start-up state of the function
block.
User can change the current
state from the operator
interface if the HOA Source
is Local or Both.
OFF
HAND
AUTO
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