Data Logger - Advantech WISE-4671 User Manual

4.2.8

Data Logger

The WISE-4671 series supports data logging. The I/O status can be logged in and
queried from the module with up to 10,000 records. WISE-4671 also supports mini-
mum 100,000 program-erase cycle per sector. Before you start the log function,
please ensure that the RTC inside the WISE module has the correct time. A battery is
used to store the time in the RTC but there may be some discrepancy due to the
accuracy of the RTC.
Data Configuration
To choose the method that will be used to log data, go to the Log Conditions section
in Data Configuration. Selecting the By Period check box enables periodic logging,
and the log period can be set in the following field (increment: 0.1 s; a value of "600"
here means that the I/O status will be logged every minute). If you select the By
Communication WDT check box, the I/O status will be logged once the WDT condi-
tion has been met.
All data can be stored even when the module is powered off. You can clear all data in
the logger when powering up the WISE module by selecting the Clear Log when
Power Up check box. When the memory is full, the logger will stop logging unless
you select the Circular Log when Memory Full check box, which will cause the
module to overwrite the memory.
To set which I/O channel's status will be logged and whether a change of the status
will also be logged, go to the Channel Fields tab. Note that the log memory will be
cleared when any parameters are changed in the Channel Fields or in IO Fields.
For digital channels, select the Log Enabled check box to periodically log the status
of the selected channel. Alternatively, select the Change of State check box to trig-
ger data logging when a status change occurs.
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