Yokogawa DAQWORX - Manual (Page 33)

1-25 IM WX102-01E
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Index
Before Operation
• If the time when data are sampled coincides with the report start, the data sampled
at the same time report making started are included in first reporting round. The
report created when the DA stops making reports thus includes those data.
• If you have defined timer and match-time signals as events using the event/action
functions in order to let the report start match the actual reporting, data items
included in the first reporting round will have one data item more than those
included in the second or any subsequent reporting round.
Temporary measurement omissions
Measurement may not take place if the DA is loaded beyond its processing capability. If
a measurement omission occurs, the DA compensates for the missing data with the data
it measures immediately after recovering from the measurement omission (the data for
the period with no measurement thus match those acquired immediately after recovering
from the temporary measurement omission).
Power failures during reporting
The DA makes a report immediately after it recovers from the power failure and then
stops reporting.
Computing results: The DA computes data measured up to the point immediately
before the power failure.
Reporting time: The time when the power failure occurred.
Handling of faulty data
If data being computed contain any abnormalities, the DA treats the data as summarized
in the following table.
Note that in the case of positive and negative overflows, minimum and maximum values
are included in the computing.
Type of Faulty Data Average Minimum/
Maximum Instantaneous ValueSum
Positive overflow Not computed Computed Takes faulty data as
the computing result Not computed
Negative overflow Not computed Computed Takes faulty data as
the computing result Not computed
Channels included in
measurement set to SKIP Not computed Not computed Takes faulty data as
the computing result Not computed
No channel included in
measurement Not computed Not computed Takes faulty data as
the computing result Not computed
Error, power failure Not computed Not computed Takes faulty data as
the computing result Not computed
Incapability of data
output Not computed Not computed Takes faulty data as
the computing result Not computed
1.5 DA100 Functions