YOKOGAWA WT500, Руководство пользователя

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9-7
IM 760201-01E
Storing Numeric Data and Saving Stored Numeric Data
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Explanation
Before you can start storing numeric data, you must set the storage mode, store count,
store interval, and the scheduled storage start and end times. This section discusses
the store count, the store interval, and the scheduled storage start and end times. For
instructions on how to set the storage mode, see section 9.2. For instructions on how to
start the storage operation, see section 9.6.
Setting the Store Count
• The store count can be set to a value from 1 to 9999999.
• The store operation will end before the set store count is reached if the maximum
amount of storable data (1 GB) is exceeded.
Checking the Maximum Store Count and Optimizing the Store Count
The data types selected in section 9.3 are used to compute and display the maximum
number of times that numeric data can be stored in the available memory. If you change
the displayed maximum store count as necessary and then confirm the setting, the actual
store count will change.
• You can set the store count to a value from 1 to the computed maximum store count.
Setting the Store Interval
You can set the interval at which numeric data is stored.
• You can set the interval hour, minute, and second within the following range. If you set
the interval to 00:00:00, the numeric data will be stored at the numeric data update
rate.
00:00:00 to 99:59:59
• If you set the integration timer (see section 5.8 and 5.9 for details) so that it is an
integer multiple of the store interval, you can store the final integrated value each time
that the integration timer expires and integration resets.
Setting the Scheduled Storage Start and End Times
You can set the year, month, day, hour, minute, and second of the storage start and end
times. Be sure to set the storage end time to a time after the storage start time.
The start and end times can be set within the following ranges:
Year:
Any four-digit Gregorian calendar value
Hour:Minute:Second 00:00:00 to 23:59:59
Note
• When the CSV file conversion method is set to Auto (see section 9.5 for details) and the
storage medium is USB memory, the maximum store count is computed with the available
memory for stored numeric data (.wts and .hds files) set to 20% of the available USB
memory.
• You can set the day for the scheduled start or end time in February to a value as high as the
31
st
day. If you do so, an error message appears when storage is executed (see section 9.4
for details). Reset the scheduled start or end time.
• The WT500 recognizes leap years when it executes the storage operation.
• If you choose to store data through USB and the write speed of the connected USB device
is slow, a new numeric data storage operation may begin before the previous operation is
finished, and some of the numeric data may be lost. If this occurs, the storage condition
indicator displays an asterisk (see “Explanation” in section 9.6 for details). You can prevent
the loss of numeric data during storage by:
• Lowering the numeric data update rate.
• Reducing the number of stored data types.
• Using faster USB memory.
9.4 Setting the Store Count, Store Interval, and the Scheduled Storage Start and End Times