Process Point - Honeywell Experion LX Operator's Manual

Displaying detailed process information
Item
Output
Mode
A1
A2
A3
A4
Alarm message
Alarm
Message
Index
History tab
The History tab displays changes to the point's process value (PV) over time.
Auxiliary tab
The Auxiliary tab is for monitoring and controlling the auxiliary (A1–A4) parameters. The
display provides a trend of PV, SP, and OP (not the auxiliaries), making it useful for tuning
control loop performance when auxiliary parameters are used to refer to tuning constants.

Process point

A process point represents a control strategy in an Experion Process Controller. Process
points are user-definable—ask your supervisor or an experienced colleague for an explanation
of the display's contents.
A typical Detail Display for a process point
Honeywell 2017
Description
When selected, an alarm is raised if the SP parameter changes without the change
being initiated from the server.
When selected, an alarm is raised if the OP parameter changes without the
change being initiated from the server.
When selected, an alarm is raised if the A1 parameter changes without the
change being initiated from the server.
When selected, an alarm is raised if the A2 parameter changes without the
change being initiated from the server.
When selected, an alarm is raised if the A3 parameter changes without the
change being initiated from the server.
When selected, an alarm is raised if the A4 parameter changes without the
change being initiated from the server.
The index number of the message associated with alarms for this point.
For details about creating messages, see the Station Configuration Guide.
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