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Alarm Point Indication Alarms and Events
Revision 9 900 Control Station User Guide 67
May 2014
Alarm Point Indication
• When an alarm is not active, the background is white with black text indicating Normal and the alarm
indicator light is gray.
• When any alarm is active, the alarm indicator light turns red, flashes and the text changes to
Unacknowledged.
• Once acknowledged, the alarm indicator light stops flashing, remains red until the alarm condition goes
away and the text changes to Acknowledged.
• If the alarm condition goes away (clears) before the operator acknowledges the alarm, the alarm
indicator light will turn yellow and continue to flash until acknowledged. The text will change to
Cleared.
Alarm Point Detail
Following details are displayed.
• Tag name
• Alarm details text
• Last time the selected point was in alarm state
• Last time the selected point went out of alarm state
• Number of occurrences
Alarm Acknowledgement
• When 900CS is connected to C30S, C50S, C70S and C75S Controllers then it will not be allowed to
Acknowledge Alarms in Safety portion of the configuration when controller is in RUN-LOCKED mode,
it is allowed when controller is RUN-program mode.
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