ProSoft Technology PTQ-AFC - Manual (Page 64)

Quick Start PTQ-AFC ♦ Modicon Quantum Platform
User Manual Liquid and Gas Flow Computer for Hydrocarbon Products
Page 64 of 259 ProSoft Technology, Inc.
June 23, 2011
3 During the download operation, the following progress window is displayed:
4 When the file transfer is complete, the following window is displayed:
Note: The virtual slave remapping data (page 82) is not downloaded during the procedure because
it requires a separate download operation.
Troubleshooting Tip: If the AFC Manager displays an "Illegal Data Value" message, it typically
indicates an invalid meter type or product group configuration. The module does not accept a
configuration file that attempts to change a meter type or product group for a meter that is currently
enabled. Disable all meters, change the meter types and product groups, and then enable the
meters again.
6.3.7 Verifying Correct Operation
When all of the configuration steps have been completed, the module should be
ready to perform measurement calculations. To verify that the module is
configured correctly, follow these steps:
1
Enable all meters that will be used, as any meter will only perform
calculations if it is enabled. Any meter can be enabled either with ladder logic
(PTQ-AFC modules), function blocks (PTQ modules) or with AFC Manager.
2 Make sure that the wallclock is running, and that it has valid date and time
information. After power-up, the wallclock will be stopped, therefore the
module will not perform any time-scheduled operations, such as writing
period-end archives, and will not timestamp records written to the event log
until it receives a wallclock command from the ladder logic.
The sample ladder logic programs the wallclock update command upon
detecting "power-up" status from the AFC. The date/time information used is
the same as the processor, therefore you should use the configuration tool for
your processor to verify that the processor has valid date/time data. If the
processor wallclock is not valid (for example if the year = 1900), the module
will not accept the command. You may easily determine if the wallclock is
running by performing two consecutive read operations in the Meter Monitor.
3 Make sure that the meter does not have any alarms. A meter alarm may
affect flow calculation. Look at the Meter Monitor dialog box for alarms.
4
Make sure that the input parameters transferred from the processor are
correct. You can look at these values in the Meter Monitor dialog box.