
Using ProLink
®
Software with Micro Motion
®
Transmitters
129
Configure Menu: Events
continued
Configuring event parameters
Configure Menu:
Transmitter Outputs
Configure Menu:
Transmitter Information
Configure Menu: EventsView Menu: Status
Configure Menu:
Characterize
Configure Menu:
Transmitter Variables
With a total or inventory assigned to the event, the value of the setpoint
determines when the alarm switches states.
• If the setpoint is positive, and forward flow causes the total or
inventory level to increase, the alarm switches states when the total
reaches the setpoint.
• If the setpoint is negative, and reverse flow causes the total or
inventory level to decrease, the alarm switches states when the total
reaches the setpoint.
• Once the totalizer alarm has been activated, the totalizer must be
reset. Resetting the totalizer switches a high totalizer alarm OFF or
switches a low totalizer alarm ON. To stop, start, or reset mass or
volume totalizers, open the Applications menu, then choose Totalizer
Control.
Example:
Given:
Event 1 has been assigned to the control output, and
temperature has been assigned to the event. The output controls a
normally-closed electronic valve (the valve is closed when no power is
supplied from the control output).
Problem:
Configure the control output to close the valve if the process
temperature exceeds the setpoint.
Solution:
With temperature assigned to the Event 1, a high alarm
switches ON when temperature goes above the setpoint.
Open the Type list box under Event 1, then select High Alarm. The
alarm will switch ON and produce 0 V output to close the valve when
temperature exceeds the setpoint.
Example:
Given:
Mass total has been assigned to Event 1.
Problem:
Configure the totalizer alarm to switch OFF when 500 kg of
fluid has been loaded.
Solution:
With mass total assigned to the event, the low alarm will
switch OFF when the mass total equals the setpoint, then will switch
ON when the totalizer is reset.
Open the Type list box under Event 1, then select Low Alarm. Since the
setpoint is positive (500 kg), the low alarm will switch OFF when
forward flow causes the mass total to exceed 500 kg. The totalizer
alarm then will remain OFF until the user resets the mass totalizer.
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