Connecting to OPC Server

Projects Networking, Protocols, and Devices
1

Hi

Im working on a project to connect Arduino YUN to SCADA. On the project im using OPC Server for Arduino/Genuino ver 1.9. The OPC Client that im using is MatrikonOPC.

The problem is that in the Arduino OPC Server i can't see Items published at all.

2016/12/07 10:47:17 AM > Running OPC Server from C:\Washing Machine\ARDUINO\ArduinoOPCServer.exe
2016/12/07 10:47:17 AM > Waiting for OPC clients to connect....
2016/12/07 10:50:12 AM > Connected client
2016/12/07 10:50:12 AM > Trying to open COM11 port
2016/12/07 10:50:12 AM > COM11 port open
2016/12/07 10:50:12 AM > Asking for available OPCItems from ArduinoSerial0
2016/12/07 10:50:12 AM > Frame:

Check my Sketch below.

#include <OPC.h>
#include <Bridge.h>
#include <Ethernet.h>
#include <SPI.h>

/*

  • Declaring the OPC object
    */
    OPCNet myYun;

/*

  • set led status from OPC Client
    */
    opcOperation digital_status_input[14], analog_status_input[6];

bool readwrite_digital(const char *itemID, const opcOperation opcOP, const bool value)
{
byte port;

port = atoi(&itemID[1]);

if (opcOP == opc_opwrite) {
if (digital_status_input[port] == opc_opread) {
digital_status_input[port] = opc_opwrite;
pinMode(port,OUTPUT);
}

digitalWrite(port,value);
}
else
{
if (digital_status_input[port] == opc_opwrite) {
digital_status_input[port] = opc_opread;
// pinMode(port,INPUT);
}

return digitalRead(port);
}

}

int readwrite_analog(const char *itemID, const opcOperation opcOP, const int value) {
byte port;

port = atoi(&itemID[1]);

if (opcOP == opc_opwrite) {
if (analog_status_input[port] == opc_opread) {
analog_status_input[port] = opc_opwrite;
pinMode(port,OUTPUT);
}

analogWrite(port,value);
}
else
{
if (analog_status_input[port] == opc_opwrite) {
analog_status_input[port] = opc_opread;
//pinMode(port,INPUT);
}

return analogRead(port);
}

}

void setup() {

/*

  • OPC Object initialization
    */
    myYun.setup();

/*

  • OPCItems declaration
    */
    myYun.addItem("D0",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D1",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D2",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D3",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D4",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D5",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D5",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D6",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D7",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D8",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D9",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D10",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D11",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D12",opc_readwrite, opc_bool, readwrite_digital);
    myYun.addItem("D13",opc_readwrite, opc_bool, readwrite_digital);

myYun.addItem("A0",opc_readwrite, opc_int, readwrite_analog);
myYun.addItem("A1",opc_readwrite, opc_int, readwrite_analog);
myYun.addItem("A2",opc_readwrite, opc_int, readwrite_analog);
myYun.addItem("A3",opc_readwrite, opc_int, readwrite_analog);
myYun.addItem("A4",opc_readwrite, opc_int, readwrite_analog);
myYun.addItem("A5",opc_readwrite, opc_int, readwrite_analog);
}

void loop() {
/*

  • OPC process commands
    */
    myYun.processOPCCommands();
    }