MDI_DataInterface_RTU (FB)

FUNCTION_BLOCK MDI_DataInterface_RTU

This function block is used to transfer command and status data between the application layer and the communication layer of the PLC program. An instance of the relevant function block must exist for each axis in the application.

InOut:

Scope	Name	Type	Initial	Comment
Input	Execute	BOOL		Begins the read-and-write interface cycle.
	DriveAddress	BYTE	1	Drives node address.
	TimeOut	INT	200	Communication Timeout [ms].
	LastDone	BOOL		Link to last MDI_DATAINTERFACE_RTU.Done but to reset function chain.
	TypeOfDrive	MDI_DriveType	MDI_DriveType.ACSx80	e5x0:= 0, ACSx80:= 1.
	ResetCommsError	BOOL		Clear a communication error that is present in the output.
Inout	Axis	MDI_AxisRef		Reference to axis.
Output	Done	BOOL		Read-and-write operations completed without an error.
	Error	BOOL		Signals that an error has occurred within function block.
	ErrorID	ERROR_ID		Contains the error code when there is an error.

Structure:

• MDI_DataInterface_RTU.ReadAtStart (ACT)
• MDI_DataInterface_RTU.ReadDataAct (ACT)
• MDI_DataInterface_RTU.WriteDataAct (ACT)