1 Overview
14-6 SmartAXIS Touch User’s Manual
1.4 Saving and Deleting Data
● Saving Data
The sampled values of devices, along with the sampling time, are all saved in the data storage area.
If the saved data exceeds the Data Log data storage amount per device, the old data is deleted and the new data is saved.
Data Storage Amount
When saving the sampled data to the data storage area, set the data storage amount per device. The amount of data
that can be saved in the data storage area is calculated from the configured data storage amount per device and data
amount for each channel.
The maximum amount of data that can be saved in the data storage area is 12,528. When saving two devices, the
number of data that can be saved in the data storage area is 6,264.
●
Deleting Data
The method to delete sampled data from the data storage area is as follows.
•On the Online tab in WindO/I-NV3, click the arrow under Clear, and then click All or Data Log Data. For details,
refer to Chapter 23 “4 Clear” on page 23-22.
• Press Main Menu on the Top Page in the System Mode, Initial Setting, Initialize, Data Log in order.
Sample values of devices
Tou ch
External device
Data Log data
Sampling Time Data001 Data002 Data003
01/01/2011 12:00:00 20 120 201
01/01/2011 12:10:00 21 121 204
01/01/2011 12:20:00 22 122 206
01/01/2011 12:30:00 23 123 206
01/01/2011 12:40:00 24 124 210
01/01/2011 12:50:00 25 125 218
Data Log data storage amount per device
Oldest data
(delete)
New data
When the backup battery is depleted, the data in the Data Log is erased when the Touch is turned off.