ModbusTCPDeviceDiag (FB)¶

FUNCTION_BLOCK ModbusTCPDeviceDiag EXTENDS CAADiagDeviceDefault

This fucntion block is generated for the Modbus TCP slave device in the device tree if generic DIagnosis is activated.

InOut:

Scope	Name	Type	Initial	Comment
Input	xEnable	BOOL	TRUE	TRUE : start operation, open sockets
Output	xOnline	BOOL		TCP Port opened, ready for receiving request.
	xInternalError	BOOL	FALSE	Unrecoverable internal error (e.g. if mem-alloc fails or no license)
	ErrorCode	UDINT		error code
	Port	UINT		Port Number
	uiClientConnections	UINT		number of currently established client connections (TCP/IP)
	xTimeout	BOOL		Timeout (if configured) expired. Holding Registers and Coils are set to zero.

Methods:

UpdateCommunicationSettings

Structure: