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M7 API M7UnLinkDataAccessCB M7UnLinkDataAccessCB Function Unlink callback function call for S7 object access Syntax #include <m7api.h> M7ERR_CODE M7UnLinkDataAccessCB(M7CBFRB_PTR pCBFRB); Parameters Parameter Name Meaning pCBFRB Description Pointer to the FRB provided for unlinking. The function unlinks a callback function on the object server. The callback function must previously have been linked with the M7LinkDataAccessCB function. Return Value Error Codes = M7SUCCESS: < M7SUCCESS: The function was successfully executed. An error occurred. Error Code M7E_FRB_NOT_IN_LIST See Also Meaning FRB not linked M7LinkDataAccessCB, M7GetCBFlags, M7GetCBBuffer, M7GetCBDataType, M7GetCBObjType, M7GetCBPart, M7GetCBCount, M7GetCBByteOffset, M7GetCBBitOffset System Software for M7-300 and M7–400, System and Standard Functions, Volume 1 C79000–G7076–C852–02 5-215
