Emerson Vilter MicroVission - Analog Inputs

20 – 5
Section 20 • Auxiliary I/O
MicroVission Controller • Operation and Service Manual • Emerson • 35391MV 1.3
Analog Inputs
The Analog inputs section of the auxiliary I/O screen al-
lows an operator to dene the function of an instrument
connected to the MicroVission. For Auxiliary Analog
Inputs Screens. The analog inputs can be congured to
simply monitor an input for informational purposes or
used as a control input for the auxiliary digital and ana-
log outputs. The analog inputs can also be congured to
alarm, trip, and inhibit on specied values.
• Alarm / Trip: This drop-down box allows the operator
to select whether the analog input should generate
an alarm, trip, or both when the input value exceeds
the limits entered into the alarm and trip entry boxes.
• Inhibit: Selecting this checkbox will prevent a start if
the input value exceeds the alarm limit values.
• Low Alarm: This denes the lower limit of the input
value that when exceeded will generate an alarm.
• High Alarm: This denes the upper limit of the input
value, that when exceeded will generate an alarm.
• Low Trip: Denes the lower limit of the input value
that when exceeded will generate a trip.
• High Trip: Denes the upper limit of the input value
that when exceeded will generate a trip.
• Delay: Denes the time period for which input value
is checked with alarm/trip setpoints before showing
alarm or trip. If the input value is continuously above
or below the alarm or trip setpoints, only then an
alarm or trip is generated.
Figure 20-5. Auxiliary I/O Screen – Analog Inputs (Page 3)