ModbusMasterTCP

ModbusMasterTCP (FB)

FUNCTION_BLOCK ModbusMasterTCP IMPLEMENTS IModbusConnector

InOut:

Scope	Name	Type	Initial	Comment
Input	xEnable	BOOL	TRUE
Input	xResetAuto	BOOL		Reset manual override of the connected slaves.
Input	sIPAddress	STRING(15)	‘192.168.60.10’
Input Const	uiPort	UINT	502	Network port for ModbusTCP
Input Const	tConnectTimeout	TIME	TIME#5s0ms	Timeout time for establishing the connection. When the time has elapsed, a repeating reconnect occurs after the time has elapsed tWatchdogDisconnect.
Input Const	tReplyTimeout	TIME	TIME#1s0ms	Reply timeout for Modbus requests; this applies to all connected slaves.1
Input Const	tWatchdogDisconnect	TIME	TIME#25s0ms	Watchdog that monitors an active connection and performs a reconnect after the time has elapsed.
Output	xConnected	BOOL		TRUE = connection to Modbus TCP participant established
Output	itfModbusConnector	IModbusConnector	THIS^
Output	udiConnectedSlaves	UDINT		Number of connected Modbus participants
Output	udiLastModbusRequestTime	UDINT		Modbus request transaction time in milliseconds
Output	udiNumberOfMsgSent	UDINT		Number of sent Modbus requests
Output	udiNumberOfMsgReply	UDINT		Number of received Modbus requests