Understand pump Line Blockage alarms
- Last UpdatedApr 24, 2025
- 3 minute read
The following table lists events and alarms that are generated by Line Blockage related to pumps. Alarms and events are generated against the status or multistate point associated with the pump, not the pump itself.
For more information on Message Sets, see Work with the pump message sets. The pump line blockage alarms are all generated with the Message Set “Pump Shutdown (message set element 4)."
Notes: The following alarms and events will be generated when the Flow Network is configured
for Device Based Alarming. When the Flow Network is configured for Model Based Alarming, only events are generated for each individual pump.
To generate alarms and events based on Flow Network integrity updates, an alarm or
event must be the result of an integrity update and the IntegrityUpdate parameter must be set to true in the LMS.RealTime.json file. For more information, see Understand Flow Network global process settings.
Alarms generated by the Line Blockage application continue to display in the Alarm
Summary until acknowledged by the Controller. Each alarm is assigned a unique category
consisting of an alphanumeric prefix and a unique identifier to ensure that it does
not get replaced by any subsequent alarms of the same type. The categorization, prefix,
and unique identifier ensure the Controller is aware of all shutdown instances in
the Flow Network.
To update the alarm message or severity configuration, refer to the msgInfo table
row for Alarm Message Identifier of interest. For more information on configuration
using the msgInfo table, refer to Volume 1 of the RealTime Administrator documentation.
|
Alarm/Event |
Alarm/Event Message Configuration |
Alarm Severity Configuration |
Type |
|---|---|---|---|
|
Shutdown: <shutdown sequence name> will be executed in <delay> second(s) (triggered by <pump name>) in Flow Network <pump flow network>. |
FNET_PUMP_LNBLCK_SHUTDOWN_QUEUED An alarm and event that is generated when an unexpected line blockage occurs. A delayed shutdown has been queued by Line Blockage and will be executed after the displayed number of seconds. |
Base Message |
Alarm & Event |
|
Shutdown: <shutdown sequence name> will be executed in <delay> second(s) in Flow Network <flow network>. |
FNET_PUMP_LNBLCK_SHUTDOWN_QUEUED_NODEVICE An alarm and event that is generated when an unexpected line blockage is detected that is the result of an integrity update and integrityupdate is set to true. A delayed shutdown has been queued by Line Blockage and will be executed after the displayed number of seconds. Note: The Flow Network indicated in the message is the network the pump is on. |
Base Message |
Alarm & Event |
|
Shutdown: Action Sequence <shutdown sequence name> executed for pump <pump name> in Flow Network <pump flow network> due to a line blockage in Flow Network <line blockage flow network>. |
FNET_PUMP_LNBLCK_SHUTDOWN_EXECUTED An alarm and event that is generated when an unexpected line blockage occurs is detected. A delay of zero was configured, and the shutdown sequence was executed immediately. Notes: The line blockage Flow Network indicated in the message is the network the line blockage originated from. This event is also generated when a delayed shutdown has been executed. |
Base Message |
Alarm & Event |
|
Shutdown: Action Sequence <shutdown sequence name> executed in Flow Network <flow network> due to a line blockage in FlowNetwork <lineblockage flow network>. |
FNET_PUMP_LNBLCK_SHUTDOWN_EXECUTED_NODEVICE An alarm and event that is generated when an unexpected line blockage is detected that is the result of an integrity update and integrityupdate is set to true. A delay of zero was configured, and the shutdown sequence was executed immediately. Notes: The Flow Network indicated in the message is the network the pump is on. The line blockage Flow Network indicated in the message is the network the line blockage originated from. This event is also generated when a delayed shutdown has been executed. |
Base Message |
Alarm & Event |
|
Higher priority shutdown occurred. Action sequence <action sequence name> with remaining delay of <delay> second(s) canceled. |
FNET_PUMP_LNBLCK_SHORTER_TIMER A Line Blockage element attempted to queue a shutdown sequence that was already queued. The new queued shutdown had a shorter delay than the remaining delay on the existing shutdown, so the existing shutdown was canceled and replaced. |
Base Message |
Alarm & Event |
|
Line Blockage Cleared:Action Sequence <action sequence name> canceled(originally triggered by blockage in Flow Network <triggering flow network name>). |
FNET_PUMP_LNBLCK_SHUTDOWN_CANCELED A line blockage was resolved before the delay on shutdown sequence expired, so the shutdown sequence was canceled. |
Base Message |
Alarm & Event |
|
Line blockage pump <pump name> moving from state <previous state> to <new state>. |
FNET_PUMP_LNBLCK_STATE_CHANGED |
Base Message |
Alarm & Event |
|
An override was performed for <type> by <username> at <location> |
FNET_PUMP_COMMAND_OVERRIDE_EVENT An event that is generated when a Controller overrides a warning when executing a command on a pump. |
N/A |
Event |
|
Modified logic state from '{0}' to '{1}' |
FNET_PUMP_MODIFIED_LOGIC_STATE An event generated when pump logic state is modified. |
N/A |
Event |