Section 2 NS Series Functions 2-20 Special Functions
2-443
NS Series Programming Manual
Checking Records
Displays the alarm history from the System Menu during operation.
1. Select Special screen/Alarm history (sort by occurrence) or Alarm history (sort by frequency) from
the System Menu.
2. Check the alarm history. (The event history cannot be checked.)
The alarm history can also be checked during operation by using an alarm/event summary and history
functional object.
2-20-3 Data Log Function
The data log function is used to register changes over time to the contents of a registered address. The
data can be edited on a personal computer because it is saved as a CSV file.
Procedure for Using Data Logs
Perform the following procedure to use the data log function.
1. Make the data log settings.
Register addresses under PT – Data Log setting when creating a screen with CX-Designer.
Refer to Outline in 2-15 Data Logs for information on data log setting.
2. Initialize data log.
If necessary, initialize the data log from the PT System Menu and clear old records before starting
recording.
3. Execute the data log.
Records address contents during PT operation at a specified timing.
The data logging timing is set under Settings/Data log setting.
4. Check data log records.
The data log records are displayed on a data log graph functional object.
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