9-29
9 Socket Service
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
9-6 Details on Using the Socket Services
9
9-6-5 TCP Sample Programming
3 : // Send request
SendSocketDat:=RcvSocketDat;
SktTCPSend_instance(
Execute :=TRUE,
Socket :=WkSocket, // Socket
SendDat :=SendSocketDat[0], // Send data
Size :=UINT#2000); // Send data size
IF (SktTCPSend_instance.Done=TRUE) THEN
Stage :=INT#4; // Normal end
ELSIF (SktTCPSend_instance.Error=TRUE) THEN
Stage :=INT#30; // Error end
END_IF;
4 : // Request closing data.
SktClose_instance(
Execute :=TRUE,
Socket :=WkSocket); // Socket
IF (SktClose_instance.Done=TRUE) THEN
Stage :=INT#0; // Normal end
ELSIF (SktClose_instance.Error=TRUE) THEN
Stage :=INT#40; // Error end
END_IF;
0 : // Normal end
DoTCP :=FALSE;
Trigger :=FALSE;
ELSE // Interrupted by error.
DoTCP :=FALSE;
Trigger :=FALSE;
END_CASE;
END_IF;