> For the complete documentation index, see [llms.txt](https://sdk.twelite.info/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sdk.twelite.info/en/twelite-net-api-ref/twelite-net-guan-shu/toconet_u32getserial.md).

# ToCoNet\_u32GetSerial()

## Explanation

Getting the module serial number. This serial number is the value of the individual module and is also used for the purpose of specifying the communication partner.

{% hint style="info" %}
The value is the hexadecimal serial number displayed on the TWE module plus `0x80000000`.
{% endhint %}

## Argument

None

## Returns

| Type     | Remark                      |
| -------- | --------------------------- |
| `uint32` | 32 bit module serial value. |

## Sample code

```c
uint32 u32ser;
u32ser = ToCoNet_u32GetSerial();
```