> For the complete documentation index, see [llms.txt](https://support.powerio.com/hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.powerio.com/hub/codesys-hvac/en/hvac-bacnet2-library/funktionsbausteine/server-objekte/master_for_serverobjects_pou.md).

# MASTER\_FOR\_SERVEROBJECTS\_POU

## `MASTER_FOR_SERVEROBJECTS_POU` (FB)

FUNCTION\_BLOCK MASTER\_FOR\_SERVEROBJECTS\_POU IMPLEMENTS IMasterForServerObjectsPOU

InOut:

| Scope       | Name                                          | Type                                       | Initial  | Comment                                                                                                                                                                                                                                                                                                                                                          |
| ----------- | --------------------------------------------- | ------------------------------------------ | -------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Input       | `refBACnet2_Server`                           | <p>REFERENCE TO<br>BACnet.BACnetServer</p> | 0        | <p>Reference to the BACnet object of type 'BACnet2\_Server' in the<br>device tree</p>                                                                                                                                                                                                                                                                            |
| Output      | `dwNumberOfBACnetServerObjects`               | `DWORD`                                    |          | <p>Total - number of BACnet server objects (device tree<br>and/or POU)</p>                                                                                                                                                                                                                                                                                       |
| Output      | `dwNumberOfBACnetServerObjectsPOU_Registered` | `DWORD`                                    |          | Number of registered BACnet server objects (POU)                                                                                                                                                                                                                                                                                                                 |
| Output      | `dwNumberOfBACnetServerObjectsPOU_Placed`     | `DWORD`                                    |          | Number of placed BACnet server objects (POU)                                                                                                                                                                                                                                                                                                                     |
| Output      | `dwIndexTriggeringUpdateActual`               | `DWORD`                                    |          | <p>Running index for selecting a placed FB to<br>update the structure variable 'stProperties'</p>                                                                                                                                                                                                                                                                |
| Output      | `eStringType`                                 | `BACnet.CmpBACnet.IEC_BACNET_STRING_TYPE`  |          | <p>String type for all strings of the BACnet server and its<br>objects (type: DINT)</p>                                                                                                                                                                                                                                                                          |
| Output      | `itfMasterConnector`                          | IMasterForServerObjectsPOU                 | THIS^    | <p>Interface - output for connecting slave<br>function blocks</p>                                                                                                                                                                                                                                                                                                |
| Input Const | `xEnUpdateIndexTriggering`                    | `BOOL`                                     | TRUE     | <p>Enable / disable automatic updating of the index 'gvlBACnet2.dwIndexTriggeringUpdateActual'<br>TRUE: Automatic update enabled (gvlBACnet2.dwIndexTriggeringUpdateActual changes each cycle between 1 and gvlBACnet2.dwNumberOfBACnetServerObjectsPOU\_Placed)<br>FALSE: Automatic update disabled (gvlBACnet2.dwIndexTriggeringUpdateActual = 0 constant)</p> |
| Input Const | `tTimeUpdateObjectList`                       | `TIME`                                     | TIME#0ms | Time duration for updating the object list                                                                                                                                                                                                                                                                                                                       |

Methods:

> DecNumberOfBACnetServerObjectsPOU\_Registered

> FB\_Exit

> IncNumberOfBACnetServerObjectsPOU\_Placed

> IncNumberOfBACnetServerObjectsPOU\_Registered

> ShowObjectList

> UpdateIndexTriggeringUpdateActual

Structure:

* DecNumberOfBACnetServerObjectsPOU\_Registered (Method)
* FB\_Exit (Method)
* IncNumberOfBACnetServerObjectsPOU\_Placed (Method)
* IncNumberOfBACnetServerObjectsPOU\_Registered (Method)
* ShowObjectList (Method)
* UpdateIndexTriggeringUpdateActual (Method)


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