Omron NX102-12 Series User Manual

2 The SktUDPRcv instruction is used to make a receive request. The received data is stored in
RcvSocketDat[].
3 The SktUDPSend instruction is used to make a send request. The data in SendSocketDat[] is
sent.
4 The SktClose instruction is used to close the socket.
ST
Internal
varia-
bles
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)] Received
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_in-
stance
SktUDPCreate
SktUDPSend_instance SktUDPSend
SktUDPRcv_instance SktUDPRcv
SktClose_instance SktClose
External
variable
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
9 Socket Service
9-20
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)

Omron NX102-12 Series Specifications

General

Brand	Omron
Model	NX102-12 Series
Category	Controller
Language	English