SyncReadVarListFromPlc (FUN)

FUNCTION SyncReadVarListFromPlc : Error

Reads the given variable list synchronously. The list must have been created previously by a call to SyncDefineVarList

Important

As communication is involved, take care (async calls etc.) when using this method from an IEC-Task

InOut:

Scope	Name	Type	Comment
Return	SyncReadVarListFromPlc	Error	An errorcode representing the result of this operation
Input	hPlcHandler	SysTypes.RTS_IEC_HANDLE	The instance of the PLCHandler to work on.
	hVarList	SysTypes.RTS_IEC_HANDLE	The variable list to read.
Output	ppVarInfos	POINTER TO POINTER TO VariableValue	An ARRAY OF POINTERs to VarInfo instances representing each single read value
	numVarsResult	UDINT	The size of the array of returned variables