Sutron Xpert2, Operation And Maintenance Manual

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The user sets the desired device position by setting the Set Point property. The Deadband
property defines the range of points that are considered to be within tolerance. Specifically, an
input
Point is in within tolerance (i.e. no attempt to reposition is made) when the difference
between Set Point and input Point is less than or equal to Deadband .
Moves are accomplished by setting the Move + , Move - , and Stop outputs. These are boolean
outputs typically wired to BinOut blocks in order to set the state of some hardware control line.
When Latched Outputs is checked, the selected move line is set high for .25 seconds and then set
low. After Pulse Time seconds elapses, the Stop output is set high for .25 seconds, and then set
low.
When Latched Outputs is not checked, the selected move line stays high for the duration
specified by Pulse Time before it is set low. The Stop output is not set in this case.
The Invert Outputs option is used to invert the sense of the control loop. The “normal” sense
occurs when the box is not checked. In this case, Move + is selected when the input Point is
lower than Set Point by more than Deadband . Move – is selected when the input Point is higher
than Set Point by more than Deadband . When the Invert Outputs option is checked, Move + is
selected instead of Move – , and vice versa.