Item
Description
between
Alarm
States
For example, if you make states 7 and 8 alarm states, an alarm is raised if the PV
changes to state 0 and another alarm is raised if the state then changes to state 1.
Control Fail Alarms
PV Control
Fail Alarm
Raises an alarm priority, and optionally subpriority, if the value of the PV parameter
is not correct. (After issuing a new control value, the server scans the point to check
the point's control value is correct.)
PV Control
Timeout
The maximum time (in seconds) allowed, after a change in PV value to reach an
acceptable value before a control fail alarm is raised. The default is Nil (no control
timeout).
The server checks the value every 10 seconds during the timeout period.
You must specify a value other than None to enable the control fail alarm.
External Change Alarms
PV
If selected, an alarm is raised if the PV parameter changes without the change being
initiated from the server.
Output
If selected, an alarm is raised if the OP parameter changes without the change being
initiated from the server.
Mode
If selected, an alarm is raised if the MD parameter changes without the change
being initiated from the server.
Alarm Acknowledgement
Controller
Destination
Address
An optional address that will be written to when any alarm on this point is acknow-
ledged. If not configured, it will show only the controller number for the PV source
address.
Alarm
Message
Index
The index number of the message associated with alarms for this point.
For details about creating messages, see the
Station Configuration Guide
.
History tab
The
History
tab displays changes to the point’s process value (PV) over time.
Displaying detailed process information
Honeywell 2017
216