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M&M FDT 1.2.1 Online Specification |
Interfaces and Methods - Schemas - FDT Specification - Quicklinks - Abbreviations
4.5.7.1 IFdtFunctionBlockData::GetFBInstanceData()
| This method can be called in the states: |      |
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HRESULT GetFBInstanceData ( [in] BSTR systemTag, [out, retval] FdtXmlDocument* result ); |
Description:
| This method is used by DTMs of failsafe devices to verify the consistency of device parameters. The user can compare device parameters which are uploaded directly from the device with device parameters which are read indirectly from the device via the Proxy FB, located in the bus master. Returns a static XML-document containing the parameters of the failsafe device |
Parameters:
| systemTag | Identifier of the device instance |
Return Value:
| result | XML document containing the parameters of the failsafe device specified by the FDTFailSafeDataSchema |
Behavior:
| The channel object routes upward in the topology to the bus master driver that contains the corresponding Proxy FB of the DTM, reads the individual device parameter set directly out of the bus master and passes them to the DTM. If there is still no assignment of the DTM to a Proxy FB, at first it executes the browsing function as it is described for SelectFBInstance() If a Communication-DTM is not able support failsafe functionality, it will return a valid xmlDocument that contains no "FDTFailSafeData" element. |
Comments:
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Last updated 2015-02-05 15:17
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