# Data Structure

Structure of fields and tags written for the time series can be as follows:

| **time**            | **v**   | **s** | **tsid**           |
| ------------------- | ------- | ----- | ------------------ |
| 2019-08-28 03:18:29 | 1234.12 | 0     | Group1.Temperature |

or

| **time**            | **v** | **s** | **tsid**           | **tsc** |
| ------------------- | ----- | ----- | ------------------ | ------- |
| 2019-08-28 03:18:29 | 88.7  | 0     | Group1.Temperature | Room 27 |

**v** and **s** are the required time series fields. **v** field is a real number and it contains sample value in the moment of time (time field). **s** field is a integer, it contains status of sample or data source in the moment of time (time field) and can take the following values:

| **Status**            | **Code (DEC)** | **Code (HEX)** |
| --------------------- | -------------- | -------------- |
| Good                  | 0              | 0x00           |
| Uncertain             | 1073741824     | 0x40000000     |
| UncertainInitialValue | 1083310080     | 0x40920000     |
| Bad                   | -2147483648    | 0x80000000     |
| BadNoCommunication    | -2144272384    | 0x80310000     |
| BadTypeMismatch       | -2139881472    | 0x80740000     |
| BadOutOfRange         | -2143551488    | 0x803C0000     |
| BadLicenseExpired     | -2129788928    | 0x810E0000     |
| BadNotFound           | -2143420416    | 0x803E0000     |
| BadUserAccessDenied   | -2145452032    | 0x801F0000     |
| BadObjectDeleted      | -2143354880    | 0x803F0000     |
| BadNodeIdUnknown      | -2144075776    | 0x80340000     |
| BadOutOfService       | -2138243072    | 0x808D0000     |

{% hint style="info" %}
Note that *BadLicenseExpired* status means that demo period of time series associated data source has expired. If demo period is expired for InfluxDB store data will no longer be written to the database
{% endhint %}

*tsid* is the required time series tag. *tsid* tag contains time series address (identifier), for example, string path *Group1.Temperature.* Please find more information about possible address types below. Optional are the following tags: *su*, *stu*, *tsu*, *tsp*, *tsc*.


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