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EXCEL 50 MMI - USER GUIDE
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EN2B-0222GE51
R0216
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.
Critical / Non-Critical Alarms
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.
Alarm Attributes
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.
System Alarms Description
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.
Min. / Max. Limit Monitoring
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.
Summary of Contents for Excel 50
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