Point In Alarm; Critical / Non-Critical Alarms; Alarm Attributes; System Alarms Description - Honeywell Excel 50 User Manual

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EXCEL 50 MMI - USER GUIDE

Point in Alarm

All data-points currently in an alarm condition, i.e. the alarm limit for an analog

point or the alarm state for a digital point has been reached, can be displayed on

the Excel 50 MMI. When selecting this option, the data-point's name and

associated alarm text will be displayed.

The following attributes can generate alarms and will write them into the alarm

buffer as well as sending them to the PC central via the C-Bus.

With the "Min Limit", "Max Limit", "Totalizer", and "Alarm State" attributes, you can

classify alarms as either critical or non-critical.

NOTE: The "Operating Mode" attribute always generates a critical alarm.

Operating malfunctions arising within a controller (e.g. power failure) or during

communication with another Excel 5000 device are displayed on the Excel 50

MMI.

NOTE: System alarms are always critical alarms.

Two maximum limits ("Max Lim1" and "Max Lim2") and two minimum limits

("Min Lim1" and "Min Lim2") can be independently set for physical and pseudo

analog inputs.

The limit values can be changed using the operator sequence. Each time a limit

value is reached, irrespective of direction, an alarm is generated.

EN2B-0222GE51 R0216

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