Omron Sysmac NY512-1300, Руководство пользователя

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9 Socket Service
9-22 NY-series Industrial Panel PC / Industrial Box PC Built-in EtherNet/IP Port User’s Manual (W563)
ST
*1 Replace the variable name with _EIP1_EtnOnlineSta (Port1 Online) or _EIPIn1_EtnOnlineSta (Internal Port1
Online), depending on which communications port you use.
// Start sequence when Trigger changes to TRUE.
IF((Trigger=TRUE) AND (DoSendAndRcv=FALSE) AND (_EIP_EtnOnlineSta=TRUE))THEN
DoSendAndRcv :=TRUE;
Stage :=INT#1;
SktUDPCreate_instance(Execute:=FALSE); // Initialize instance.
SktUDPSend_instance( // Initialize instance.
Execute :=FALSE,
SendDat:=SendSocketDat[0]); // Dummy
SktUDPRcv_instance( // Initialize instance.
Execute :=FALSE,
RcvDat :=RcvSocketDat[0]); // Dummy
SktClose_instance(Execute:=FALSE); // Initialize instance.
END_IF;
IF (DoSendAndRcv=TRUE) THEN
CASE Stage OF
1 :
// Request creating socket.
SktUDPCreate_instance(
Execute :=TRUE,
SrcUdpPort:=UINT#6001, // Local UDP port number
Socket =>WkSocket); // Socket
IF (SktUDPCreate_instance.Done=TRUE) THEN
Stage :=INT#2; // Normal end
ELSIF (SktUDPCreate_instance.Error=TRUE) THEN
Stage :=INT#10; // Error end
END_IF;
Internal
Variables
Variable Data type Initial value Comment
Trigger BOOL False Execution condition
DoSendAndRcv BOOL False Processing
Stage INT 0 Status change
RcvSocketDat ARRAY[0..1999] OF
BYTE [2000(16#0)] Receive data
WkSocket _sSOCKET (Handle:=0,
SrcAdr:=(PortNo:=0, IpAdr:=’’),
DstAdr:=(PortNo:=0, IpAdr:=’’)) Socket
SendSocketDat ARRAY[0..1999] OF
BYTE [2000(16#0)] Send data
SktUDPCreate_instance SktUDPCreate
SktUDPSend_instance SktUDPSend
SktUDPRcv_instance SktUDPRcv
SktClose_instance SktClose
External
Variables
Variable Data type Constant Comment
_EIP_EtnOnlineSta
*1
BOOL Online