https://forge.codesys.com/tol/iec-snippets/snippets/You searched for labels:"UDP"enMon, 20 Dec 2021 12:32:15 -0000https://forge.codesys.com/tol/iec-snippets/snippets/5/Requries Library: NetBaseSrv = Net Base Services, 3.5.16.0 using the Namespace NBS ~~~ST PROGRAM PLC_PRG VAR //Control xStart : BOOL; //Use this to toggle the system ON xSend : BOOL; //Send data one time. needs a false to true transition //Settings uiSendToPort : UINT := 6454; uiReceivePort : UINT := 6454; theirIP : NBS.IPv4Address := (ipAddress := '10.0.0.10'); myIP : NBS.IPv4Address := (ipAddress := '10.0.0.9'); MySendData : ARRAY [0..529] OF BYTE := [TO_BYTE('A'),TO_BYTE('r'),TO_BYTE('t'),TO_BYTE('-'), TO_BYTE('N'),TO_BYTE('e'),TO_BYTE('t'),00, 00,16#50,0,14, 0,0,0,0, 0,2, 512(0)]; //SOME RANDOM DATA NumberOfBytesToSend : UDINT := 20; //Receive Data MyReceiveData : ARRAY [0..529] OF BYTE; WhoSentThisData : NBS.IIPAddress; //Just some function Blocks myUDP_Peer : NBS.UDP_Peer; myUDP_Send : NBS.UDP_Send; myUDP_Receive : NBS.UDP_Receive; END_VAR ~~~ ~~~ST myUDP_Peer( xEnable:= xStart, xBusy=> , xError=> , eErrorID=> , itfAsyncProperty:= , itfIPAddress:= myIP, uiPort:= uiReceivePort, itfMulticast:= , xActive=> , itfPeer=> ); myUDP_Send( xExecute:= xSend, udiTimeOut:= 1000000, // 1second timeout xDone=> , xBusy=> , xError=> , eErrorID=> , itfTSNContext:= , itfPeer:= myUDP_Peer.itfPeer, itfIPAddress:= theirIP, uiPort:= uiSendToPort, pData:= ADR(MySendData), udiSize:= MIN(NumberOfBytesToSend,SIZEOF(MySendData)), udiCount=> ); xSend := FALSE; myUDP_Receive( xEnable:= myUDP_Peer.xActive, xBusy=> , xError=> , eErrorID=> , itfPeer:= myUDP_Peer.itfPeer, pData:= ADR(MyReceiveData), udiSize:= SIZEOF(MyReceiveData), xReady=> , itfIPAddressFrom=> , uiPortFrom=> , udiCount=> ); ~~~i-campbellMon, 20 Dec 2021 12:32:15 -0000https://forge.codesys.com/tol/iec-snippets/snippets/5/