ServiceRequest (FB) ¶ FUNCTION_BLOCK ServiceRequest EXTENDS ServiceRequestBase Properties: Writer ContentPtr , inherited from ServiceRequestBase Data , inherited from ServiceRequestBase DataValid , inherited from ServiceRequestBase HaveToSwap , inherited from ServiceRequestBase Header , inherited from ServiceRequestBase Methods: Create FB_Exit RestoreSavepoint StoreSavepoint DoFinish Finish , inherited from ServiceRequestBase Structure: Create (Method) FB_Exit (Method) RestoreSavepoint (Method) StoreSavepoint (Method) Writer (Property) override DoFinish (Method)

ServiceRequest.Create (METH) ¶ METHOD Create : UDINT InOut: Scope Name Type Comment Return Create UDINT Input targetByteOrder IDatasources.ByteOrder uiServiceGroup UINT uiService UINT udiDevSessId UDINT if known, otherwise 0 pBuffer POINTER TO BYTE the buffer where the data of the service is to be written remark Depending on the way this service is sent, there might be the requirement that the content is not changed until the answer or an error is returned! udiBufferSize UDINT the size of the buffer pointed to by pBuffer

ServiceRequest.FB_Exit (METH) ¶ METHOD FB_Exit : BOOL InOut: Scope Name Type Return FB_Exit BOOL Input bInCopyCode BOOL

ServiceRequest.RestoreSavepoint (METH) ¶ METHOD RestoreSavepoint : UDINT InOut: Scope Name Type Return RestoreSavepoint UDINT

ServiceRequest.StoreSavepoint (METH) ¶ METHOD StoreSavepoint : UDINT This method can be called more than once, there will be only one effective savepoint! InOut: Scope Name Type Return StoreSavepoint UDINT

ServiceRequest.Writer (PROP) ¶ PROPERTY Writer : IServiceWriter

override ¶ DoFinish (Method)

ServiceRequest.DoFinish (METH) ¶ METHOD PROTECTED DoFinish : UDINT InOut: Scope Name Type Comment Return DoFinish UDINT Input xDestroyOnly BOOL Output pduContent ProtocolDataUnit Only evaluated in case of xDestroyOnly == FALSE

ServiceRequestBase (FB) ¶ FUNCTION_BLOCK ServiceRequestBase Properties: ContentPtr Data DataValid HaveToSwap Header Methods: Create FB_Exit Finish DoFinish Structure: ContentPtr (Property) Create (Method) Data (Property) DataValid (Property) FB_Exit (Method) Finish (Method) HaveToSwap (Property) Header (Property) abstract DoFinish (Method)

ServiceRequestBase.ContentPtr (PROP) ¶ PROPERTY PROTECTED ContentPtr : POINTER TO BYTE