Analog Input - General Panel; Analog Input - Advanced Panel - Emerson Micro Motion 3711 Configuration And Use Manual

Configuring I/O
7.4.2 Analog Input – General panel
The Analog Input – General panel is shown in Figure 7-2. Parameters on this panel are listed and
defined in Table 7-1.
Table 7-1 Analog Inputs – General parameters
Parameter Description
Point Number The module slot number and channel number for this point.
Value • If Scanning is enabled, the Model 3711 will automatically
process the value from this AI at intervals defined by Scan
Period, and this parameter is ignored.
• If Scanning is disabled, the value entered here will override
the input value.
Units A description of the engineering unit (EU) that this AI
represents; 10 characters maximum.
Scan Period The number of seconds to wait between updates of the Filter
value (see Table 7-2) for this AI.
Low Reading EU The EU value corresponding to an input level of 0% (4 mA).
High Reading EU The EU value corresponding to an input level of 100% (20 mA).
Active Alarms Displays any alarms that are currently active for this point.
Scanning • Enabled: This AI will automatically process the value from the
remote device at intervals defined by Scan Period.
• Disabled: The value from the remote device is ignored and the
configured Value is used in its place.
Alarming • Enabled: The limit alarms are enabled and all alarms
associated with this AI are logged. The limit alarms are
configured on the Alarm panel.
• Disabled: Limit alarms are disabled. The Point Fail and
Manual Mode alarms may appear in the Active Alarms field,
but no alarms will be logged.
7.4.3 Analog Input – Advanced panel
The Analog Input – Advanced panel is shown in Figure 7-3. Parameters on this panel are listed and
defined in Table 7-2.
64
Comments
Not configurable.
Examples: PSIG, MCF, Degrees F,
Milliamps, Volts
Not configurable.
Used in conversion of the analog
signal to a digital EU value.
For example, if the AI is receiving
data from a temperature device
with a range of –40 to +160 degF,
set this parameter to –40.
Used in conversion of the analog
signal to a digital EU value.
For example, if the AI is receiving
data from a temperature device
with a range of –40 to +160 degF,
set this parameter to +160.
The field at the right of the Active
Alarm field displays the alarm bit
status value (0 to 255).
If Scanning is disabled and
Alarming is enabled, an alarm is
generated.
To conserve alarm log space,
enable alarms only when
necessary.
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Micro Motion Model 3711 Gas Flow Computers