Honeywell Experion LX Operator's Manual page 205

Displaying detailed process information
Item
0%
Bias and scaling
Enable
additional PV
bias and
scaling
Services
Scanning and
control
enabled
Alarms
enabled
Journal only
option
Manual PV
Field value
Displays
Associated
display
Algorithms
PV algorithm
Action
algorithm
Honeywell 2017
Description
The value that represents 0% of the engineering units. The default is 0.00.
Used to calibrate engineering units, the bias value is added to the PV raw value
after the data format is applied and before the PV algorithm is executed.
When selected, performs the following calculation to determine the PV value:
PV = PV Field Value * Scale + Bias
Enable and disables scanning and control of the point. You typically need to
disable a point if the associated device is being serviced or repaired—this
prevents misleading alarms being generated.
In addition to using this check box, you can also click
toolbar, or press F11 (or LOAD on an OEP/IKB keyboard).
Enables and disables all alarms for the point.
This check box overrides each of the Enable Alarm check boxes for each state,
which are located on the Alarms tab.
When selected, handles all alarms for the point as journaled events. Note that
Alarms enabled must be selected for this option to work.
When selected, the operator is permitted to change the PV.
The current value of the point in the field. Operators can use this to verify the
value before disabling the Manual PV option.
Lists the display, if any, associated with this point.
Lists the PV algorithm number, if specified, attached to this point. Double-click
the number to display algorithm details.
Lists the action algorithm number, if specified, attached to this point. Double-
click the number to display algorithm details.
(Enable/Disable) on the
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