ModbusClient_RTU

ModbusClient_RTU (FB)

FUNCTION_BLOCK ModbusClient_RTU EXTENDS ModbusClientBase

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 license was found	ModbusClientBase
Input	xResError	BOOL	FALSE	Input to reset the error outputs ( eErrorCode, byErrorUnitID ) ( on every rising edge )
Output	iSerialPortFb	INT	0	Feedback of the serial port number
Output	eBaudrateFb	SysCom.SYS_COM_BAUDRATE	SysCom.SYS_COM_BAUDRATE.SYS_BR_4800	Feedback of the transmission speed of the serial port
Output	eParityFb	SysCom.SYS_COM_PARITY	SysCom.SYS_COM_PARITY.SYS_NOPARITY	Feedback of the parity per BYTE of the serial port
Output	eStopBitsFb	SysCom.SYS_COM_STOPBITS	SysCom.SYS_COM_STOPBITS.SYS_ONESTOPBIT	Feedback of the number of stop bits per byte of the serial port
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	Indication of the error state ( FALSE = no error, TRUE = error )
Output	eErrorCode	Client_RTU_ErrorCode	Client_RTU_ErrorCode.NO_ERROR	Indication of the cause of the last error
Input Const	eStopBits	SysCom.SYS_COM_STOPBITS	SysCom.SYS_COM_STOPBITS.SYS_ONESTOPBIT	Setting the number of stop bits per byte of the serial port
Input Const	eParity	SysCom.SYS_COM_PARITY	SysCom.SYS_COM_PARITY.SYS_NOPARITY	Setting the parity per byte of the serial port
Input Const	eBaudrate	SysCom.SYS_COM_BAUDRATE	SysCom.SYS_COM_BAUDRATE.SYS_BR_38400	Setting the transmission speed of the serial port
Input Const	iSerialPort	INT	2	Setting the serial port number
Input Const	tTimeCheckComPort	TIME	TIME#5s0ms	Time interval between two checks for the serial port in idle state
Input Const	tTimeoutDeviceReceive	TIME	TIME#1s0ms	Timeout duration for monitoring the response telegram ( receive )
Input Const	tTimeoutDeviceSend	TIME	TIME#1s0ms	Timeout duration for monitoring the request telegram ( send )
Input Const	tTimeoutComConnect	TIME	TIME#1s0ms	Timeout duration for monitoring the establishment of the connection to the serial port