Omron NX102-12 Series - Page 372

Exter-
nal vari-
able
Variable Data type Constant Comment
_EIP_EtnOnlineSta
*1
BOOL Online
*1. For an NX701 CPU Unit and an NX102 CPU Unit, replace the variable with _EIP1_EtnOnlineSta (Port1 On-
line) or _EIP2_EtnOnlineSta (Port2 Online), depending on the built-in EtherNet/IP port which is used.
For an NX1P2 CPU Unit, replace the variable with _EIP1_EtnOnlineSta (Port1 Online).
// 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 to create a s
ocket.
SktUDPCreate_instance(
Execute :=TRUE,
SrcUdpPort :=UINT#6000, // 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;
2 : // Send request
WkSocket.DstAdr.PortNo :=UINT#6001;
WkSocket.DstAdr.IpAdr :='192.168.250.2';
SktUDPSend_instance(
Execute :=TRUE,
Socket :=WkSocket, // Socket
SendDat :=SendSocketDat[0], // Send data
Size :=UINT#2000); // Send data size
IF (SktUDPSend_instance.Done=TRUE) THEN
9 Socket Service
9-18
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)