How Data Will Be Logged
Understanding How Data will be logged with OPC Data Logger
What determines how the data looks when it is stored? Data can be presented in two different formats. They are Table format and Detail Format.
Table Mode
When using this format all data points will appear on the same row. There is an optional Timestamp value at the beginning of each row that is enabled by default. Below is a sample of how data will look when logged in Table Mode. For more information please refer to the Data Presentation section of the help file.
Table Mode Example[1]
Timestamp, Tag_1, Tag_2, Tag_3, Bool_15, Short_1, Word_1, Word_2
10:48:00, 2829, 2829, 2829, False, 5648, 2824, 5647
10:48:00, 2836, 2836, 2836, False, 5660, 2830, 5659
10:48:00, 2839, 2839, 2839, False, 5668, 2834, 5667
10:48:01, 2843, 2843, 2843, False, 5674, 2837, 5673
10:48:01, 2849, 2849, 2849, False, 5688, 2844, 5687
10:48:01, 2852, 2852, 2852, False, 5694, 2847, 5693
10:48:02, 2856, 2856, 2856, False, 5700, 2850, 5699
Detail Mode
When using this format you have more control over exactly which pieces of data for each item will be logged. You can choose to log between 1 and 19 attributes for each item. In this format each item will appear in its own row and contain the attributes you have specified to log. In the example below the Timestamp, Item ID, Value and Quality attributes are being logged for each item. For more information, please refer to the Data Presentation section of the help file.
Detail Mode Example[1]
Timestamp(hh:mm:ss), ItemID, Value, Quality
09:23:03, Word_2, 3, 192
09:23:03, Word_1, 2, 192
09:23:03, Short_1, 4, 192
09:23:03, Bool_15, False, 192
09:23:03, Tag_3, 2, 192
09:23:03, Tag_2, 2, 192
09:23:03, Tag_1, 2, 192
[1]: Spaces added for readability