MVI56E-AFC / MVI69E-AFC ♦ Enhanced Liquid and Gas Flow Computer
Configuring Meter Parameters
ControlLogix® and CompactLogix™
Setup and Configuration Guide
ProSoft Technology, Inc.
Page 46 of 151
The settings in the
End of Period
section for the meter now take precedence over those
set on the Site page.
Sample rate alarming
– This is the longest period that can elapse between successive
fresh samples of process input values without raising the “sample rate too low” alarm.
This value is specified in seconds with a range of 0 through 30. Zero “0” means that the
sample rate test is not performed and alarms are not raised. The complete
implementation requires supporting logic in the PLC. The default for gas product is 1
second and for any liquid product is 5 seconds.
4.4
Configuring Meter Classification Parameters
Meter classification parameters include meter type, product group, units, and primary
input. These parameters must be configured before you configure any common or
application-specific parameters.
What you select here affects the available parameters that must be configured for your
application. EAFC Manager needs these parameters in order to hide or show
parameters that pertain specifically to your meter and its primary output based on your
meter and associated instrumentation.
4.4.1 Product Group
The
Product Group
represents what you are measuring (i.e., gas or liquid). The
Product
Group
dropdown list allows you to select the appropriate
Product Group
for your
application. Refer to the
AFC Reference Guide
for detailed information.
4.4.2 System of Units
System of Units
pertains to how measurements are displayed and are used for
calculations.
US
– Temperature in °F, Pressure in psi, Differential Pressure in hw@60°F.
SI
– Temperature in °C, Pressure and Differential Pressure in kPa.
Troubleshooting Tip: If the EAFC Manager displays an "Illegal Data Value" message, it typically indicates
an invalid metering principle or product group configuration. The module does not accept a configuration file
that attempts to change a metering principle or product group for a meter that is currently enabled. Disable
all meters, change the metering principle and product groups as needed, and then enable the meters again.
Summary of Contents for MVI56E-AFC
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