ProSoft Technology MVI56-AFC - Manual (Page 227)

MVI56-AFC ♦ ControlLogix Platform MVI56-AFC Sample Logic
Liquid and Gas Flow Computer User Manual
ProSoft Technology, Inc. Page 227 of 316
February 25, 2011
12.3.7 Meter Calculation Results
After the module has performed the AGA/API calculation, all results are moved to
the processor. The logic will move the calculation results to the controller tags
described in this section.
The calculation results will depend on the meter type and product group. So the
profile information (discussed before) is used to decide to which controller tag the
results will be copied to. The following options are used:
Meter Type Product Group Use this Controller Tag
Orifice Gas AFC56.Meters[x].Results.DifferentialGas
Orifice Liquid AFC56.Meters[x].Results.DifferentialLiquid
Pulse Gas AFC56.Meters[x].Results.PulseGas
Pulse Liquid AFC56.Meters[x].Results.PulseLiquid
The following shows a controller tag illustration from RSLogix5000:
This means that all you have to do is to identify where to copy the results (based
on the meter type and product group). The logic will automatically select the
correct controller tags.
Note: In order to configure each meter type and product group, refer to the AFC manager software
tool.
The following variables are used for each possible combination:
1) Meter Type = Differential & Product Group = Gas
Calculation
Result Controller Tag Data Type
Net Accumulator AFC56.Meters[x].Results.DifferentialGas.Net_Accumulator DINT
Net Flow Rate AFC56.Meters[x].Results.DifferentialGas.Net_Flowrate REAL
Gross Flow Rate AFC56.Meters[x].Results.DifferentialGas.Gross_Flowrate REAL
Fpv AFC56.Meters[x].Results.DifferentialGas.Fpv REAL
Cprime AFC56.Meters[x].Results.DifferentialGas.Cprime REAL
Where x can assume values between 0 and 15.
The following is an example for Meter 1: