Scanning tab
Item
Description
Addressing
Parameter
SP, PV OP, MD, A1, A2, A3, and A4.
Period
The interval (in seconds) between successive scans of the parameter. In Station,
this value is read-only.
Dynamic
Scanning
When selected, dynamic scanning is enabled for the parameter. In Station, this
check box is read-only.
Controller
The controller to which this parameter is attached.
Click the controller name to display the controller’s detail display.
Source
Address
The source address of the parameter. In Station, this value is read-only.
Source
Address
The destination address for the parameter. Not applicable for PV. In Station, this
value is read-only.
Processing Options
PV Clamp
When selected for this point, causes the PV of an analog point to be clamped at
0% if it is less than the PV clamp low limit. Similarly, the PV will be clamped at
100% if it is greaterthan the PV clamp high limit.
The high and low limits for the PV clamp are defined on
Point Processing
tab on
the
Message & Point Processing
display. The values are entered as a percentage
of the point range.
OP Reverse
Reverses source and destination parameter values.
MD Reverse Reverses the mode parameter value for the
MAN
state.
Drift
Deadband
Specifies the percentage change in a parameter's value that is significant enough to
require
processing.
Specifying a drift deadband helps reduce system load. The default is 0.000%.
Control
Inhibit
Prevents all controls on the point from occurring.
Control Safeguards
Control
Confirmation
When this check box is selected and a control action is performed on the point,
displays the prompt:
Please confirm control request
. The operator must press
Y
Displaying detailed process information
Honeywell 2017
206
Содержание Experion LX
Страница 1: ...Experion LX Operator s Guide EXDOC XX80 en 500A April 2017 Release 500 ...
Страница 77: ...Button Description toolbar Using faceplates Honeywell 2017 77 ...
Страница 249: ...n Restart n Hold n Stop n Abort n Resume n Active n Cancel About activities batches and procedures Honeywell 2017 249 ...