Alarms view parameters
The
Alarms
view includes these parameters:Parameter | Description |
|---|---|
Disable All Alarms | Prevents the device from generating any of the four process alarms (LL, L, H, and
HH) or the rate alarm and does not allow access to any of the alarm configuration
properties. |
Latch Process Alarms | Instructs the device to latch any or all of the four process alarms (LL, L, H, and
HH) once the alarm has been triggered, even if the condition causing the alarm to
occur disappears. |
High High Limit | Sets the trigger point in Engineering Units. HHAlarm is set to 1 when the input
signal moves above this limit. |
High Limit | Sets the trigger point in Engineering Units. HAlarm is set to 1 when the input
signal moves above this limit. |
Low Limit | Sets the trigger point In Engineering Units. LAlarm is set to 1 when the input
signal moves below this limit. The Low Alarm Limit must be >/= the Low Low Limit
and < the High Limit. |
Low Low Limit | Sets the trigger point in Engineering Units. LLAlarm is set to 1 when the input
signal moves below this limit. The Low Alarm Limit must be greater than or equal to
the Low Low Limit and less than the High Limit. |
Deadband | Allows the process alarm status bits to remain set, even if the alarm condition
disappears, as long as the channel data remains within plus or minus the deadband
value of the process alarm. This Deadband value is entered in engineering
units. |
Enable Rate Alarm Latching | Latches the rate alarm so that it does not clear until explicitly unlatched. |
Rate Alarm Limit | Sets if the rate of change between input samples on this channel exceeds the rate
specified in this field in Engineering Units. |
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