Diag.GetFirstValAndTxt (METH)

METHOD GetFirstValAndTxt : AC500_DiagTypes.ERROR_ID

Get first (oldest) diagnosis of all devices, numeric and textual

InOut:

Scope	Name	Type	Comment
Return	GetFirstValAndTxt	AC500_DiagTypes.ERROR_ID
Inout	DataVal	AC500_DiagTypes.DIAG_VAL_TYPE	variable to write data to
	DataTxt	AC500_DiagTypes.DIAG_TXT_TYPE	variable to write text to