| FB-Name | UA_NamespaceGetIndex |
| This Function Block is used to get the namespace-index of a namespace-URI |
| VAR_INPUT |
| B | Execute | BOOL | FB performs its task on rising edge on this input. |
| B | ConnectionHdl | DWORD | Connection handle. |
| B | NamespaceUri | STRING | Namespace URI. |
| B | Timeout | TIME | Maximum time to response. |
| VAR_OUTPUT |
| B | NamespaceIndex | UINT | Namespace Index. |
| B | Done | BOOL | FB has completed its task. |
| B | Busy | BOOL | The FB is not finished and new output values are to be expected. |
| B | Error | BOOL | Signals that an error has occurred within the FB. |
| B | ErrorID | DWORD | Error code. |
| Notes: This FB is deprecated and just for backward compatibility – better use UA_NamespaceGetIndexList |
