ModbusClient_RTU

ModbusClient_RTU (FB)

FUNCTION_BLOCK ModbusClient_RTU EXTENDS ModbusClientBase

Representation

InOut:

Scope	Name	Type	Initial	Comment	Inherited from
Output	xConnected	BOOL		TRUE if connection has been established	ModbusClientBase
Output	xLicenceValid	BOOL		TRUE if a valid licence was found	ModbusClientBase
Input	xResError	BOOL	FALSE	Input for resetting the error outputs (eErrorCode, byErrorUnitID) (on every rising edge)
Output	iSerialPortFb	INT	0	Feedback of the number of the serial interface
Output	eBaudrateFb	SysCom.SYS_COM_BAUDRATE	SysCom.SYS_COM_BAUDRATE.SYS_BR_4800	Feedback of the transmission speed of the serial interface
Output	eParityFb	SysCom.SYS_COM_PARITY	SysCom.SYS_COM_PARITY.SYS_NOPARITY	Feedback of the parity per BYTE of the serial interface
Output	eStopBitsFb	SysCom.SYS_COM_STOPBITS	SysCom.SYS_COM_STOPBITS.SYS_ONESTOPBIT	Feedback of the number of stop bits per byte of the serial interface
Output	eState	Client_RTU_StateCode	Client_RTU_StateCode.IDLE	Current state of the state machine
Output	byErrorUnitID	BYTE	0	Unit ID of the last error (0 = no device)
Output	xError	BOOL	FALSE	Display of the error state (FALSE = no error, TRUE = error)
Output	eErrorCode	Client_RTU_ErrorCode	Client_RTU_ErrorCode.NO_ERROR	Display of the cause of the last error
Input Const	eStopBits	SysCom.SYS_COM_STOPBITS	SysCom.SYS_COM_STOPBITS.SYS_ONESTOPBIT	Specification of the number of stop bits per byte of the serial interface
Input Const	eParity	SysCom.SYS_COM_PARITY	SysCom.SYS_COM_PARITY.SYS_NOPARITY	Specification of the parity per byte of the serial interface
Input Const	eBaudrate	SysCom.SYS_COM_BAUDRATE	SysCom.SYS_COM_BAUDRATE.SYS_BR_38400	Specification of the transmission speed of the serial interface
Input Const	iSerialPort	INT	2	Specification of the number of the serial interface
Input Const	tTimeCheckComPort	TIME	TIME#5s0ms	Time interval between two checking operations for the serial interface in idle state
Input Const	tTimeoutDeviceReceive	TIME	TIME#1s0ms	Timeout period for monitoring the response telegram (receiving)
Input Const	tTimeoutDeviceSend	TIME	TIME#1s0ms	Timeout period for monitoring the request telegram (sending)
Input Const	tTimeoutComConnect	TIME	TIME#1s0ms	Timeout period for monitoring the establishment of the connection to the serial interface