private void button2_Click(object sender, EventArgs e)
{
// 1st: Create a server object and connect to the RSLinx OPC Server
url = new Opc.URL(Settings1.OPCConnectionString);
server = new Opc.Da.Server(fact, null);
listBox1.Items.Add("1st: Create a server object and connect to the RSLinx OPC Server");
//2nd: Connect to the created server
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
listBox1.Items.Add("2nd: Connect to the created server");
//3rd Create a group if items
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group999";
groupState.UpdateRate = 1000; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
groupRead.DataChanged += GroupRead_DataChanged;;
//listBox1.Items.Add("Add event");
items = new Opc.Da.Item[1];
items[0] = new Opc.Da.Item();
items[0].ItemName = Settings1.OPCIntVarName;
items = groupRead.AddItems(items);
listBox1.Items.Add("Add Items");
Opc.Da.ItemValueResult[] values = groupRead.Read(items);
listBox1.Items.Add("Read(items)");
listBox1.Items.Add("========================");
listBox1.Items.Add(Convert.ToInt32(values[0].Value.ToString()));
}
public bool AddSubscription(string code)
{
try {
var groupstate = new Opc.Da.SubscriptionState(); //定义组（订阅者）状态，相当于OPC规范中组的参数
groupstate.Name = code; //组名
groupstate.ServerHandle = null; //服务器给该组分配的句柄。
groupstate.ClientHandle = Guid.NewGuid().ToString(); //客户端给该组分配的句柄。
groupstate.Active = true; //激活该组。
groupstate.UpdateRate = 500; //刷新频率为1秒。
groupstate.Deadband = 0; // 死区值，设为0时，服务器端该组内任何数据变化都通知组。
groupstate.Locale = null; //不设置地区值。
var group = (Opc.Da.Subscription)m_server.CreateSubscription(groupstate); //创建组
var item = new Opc.Da.Item();
item.ClientHandle = Guid.NewGuid().ToString(); //客户端给该数据项分配的句柄。
item.ItemPath = null; //该数据项在服务器中的路径。
item.ItemName = code; //该数据项在服务器中的名字。
group.AddItems(new Opc.Da.Item[] { item });
groups.Add(code, group);
return(true);
} catch (Exception ex) {
clsSetting.loger.Error($"{code}添加订阅失败！{ex}");
return(false);
}
}
/// <summary>
/// 添加订阅
/// </summary>
/// <param name="goupname">组名称</param>
/// <param name="codes">项目代码列表</param>
/// <param name="updateRate">刷新频率</param>
/// <returns></returns>
public bool AddSubscriptions(string goupname, List <string> codes, int updateRate = 500)
{
try {
var groupstate = new Opc.Da.SubscriptionState(); //定义组（订阅者）状态，相当于OPC规范中组的参数
groupstate.Name = goupname; //组名
groupstate.ServerHandle = null; //服务器给该组分配的句柄。
groupstate.ClientHandle = Guid.NewGuid().ToString(); //客户端给该组分配的句柄。
groupstate.Active = true; //激活该组。
groupstate.UpdateRate = updateRate; //刷新频率 单位毫秒。
groupstate.Deadband = 0; // 死区值，设为0时，服务器端该组内任何数据变化都通知组。
groupstate.Locale = null; //不设置地区值。
var group = (Opc.Da.Subscription)m_server.CreateSubscription(groupstate); //创建组
var items = new List <Opc.Da.Item>();
foreach (string tmp in codes)
{
var item = new Opc.Da.Item();
item.ClientHandle = Guid.NewGuid().ToString(); //客户端给该数据项分配的句柄。
item.ItemPath = null; //该数据项在服务器中的路径。
item.ItemName = tmp; //该数据项在服务器中的名字。
items.Add(item);
}
group.AddItems(items.ToArray());
groups.Add(goupname, group);
return(true);
} catch (Exception ex) {
clsSetting.loger.Error($"添加订阅失败: {goupname}, {ex}");
return(false);
}
}
private void InitializeOPC()
{
try
{
if (File.Exists("settings.xml"))
{
this.CurrentCounterOfMaterial = 0;
XmlSerializer XmlSerializer1 = new XmlSerializer(typeof(Settings));
TextReader reader1 = new StreamReader("settings.xml");
Settings Settings1 = (Settings)XmlSerializer1.Deserialize(reader1);
reader1.Dispose();
if (Settings1.OPCVariablesInitialized == true)
{
// 1st: Create a server object and connect to the RSLinx OPC Server
url = new Opc.URL(Settings1.OPCConnectionString);
server = new Opc.Da.Server(fact, null);
//2nd: Connect to the created server
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
//3rd Create a group if items
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group999";
groupState.UpdateRate = 1000; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
//groupRead.DataChanged += groupRead_DataChanged;
items[0] = new Opc.Da.Item();
items[0].ItemName = Settings1.OPCCounterName;
items[1] = new Opc.Da.Item();
items[1].ItemName = Settings1.OPCSpeedName;
items = groupRead.AddItems(items);
Opc.Da.ItemValueResult[] values = groupRead.Read(items);
this.previous_value_of_counter = Convert.ToInt32(values[0].Value);
this.VariablesInitialized = true;
}
}
else
{
MessageBox.Show("OPC settings is empty. See Settings - > Connection...");
this.VariablesInitialized = false;
}
}
catch
{
MessageBox.Show("Bad OPC connection. Review connection string");
this.VariablesInitialized = false;
}
}
public OPC_class(String in_URL, String in_CounterName, String in_SpeedName)
{
try
{
this.VariablesInitialized = false;
// 1st: Create a server object and connect
Opc.URL url = new Opc.URL(in_URL);
Opc.Da.Server server = new Opc.Da.Server(fact, null);
//2nd: Connect to the created server
//server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
try
{
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
}
catch (Exception Ex)
{
MessageBox.Show(Ex.Message);
//return false;
}
//3rd Create a group if items
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group999";
groupState.UpdateRate = 1000;// this isthe time between every reads from OPC server
groupState.Active = true;//this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
//groupRead.DataChanged += groupRead_DataChanged;
items[0] = new Opc.Da.Item();
items[0].ItemName = in_CounterName;
items[1] = new Opc.Da.Item();
items[1].ItemName = in_SpeedName;
items = groupRead.AddItems(items);
Opc.Da.ItemValueResult[] values = groupRead.Read(items);
MessageBox.Show("Counter = " + values[0].Value.ToString() + " Speed = " + values[1].Value.ToString());
//if no exeption
this.URL = in_URL;
this.VariablesInitialized = true;
}
catch
{
this.VariablesInitialized = false;
}
}
public OPC_class(String in_URL, String in_CounterName, String in_SpeedName)
{
try
{
this.VariablesInitialized = false;
// 1st: Create a server object and connect
Opc.URL url = new Opc.URL(in_URL);
Opc.Da.Server server = new Opc.Da.Server(fact, null);
//2nd: Connect to the created server
//server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
try
{
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
}
catch (Exception Ex)
{
MessageBox.Show(Ex.Message);
//return false;
}
//3rd Create a group if items
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group999";
groupState.UpdateRate = 1000; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
//groupRead.DataChanged += groupRead_DataChanged;
items[0] = new Opc.Da.Item();
items[0].ItemName = in_CounterName;
items[1] = new Opc.Da.Item();
items[1].ItemName = in_SpeedName;
items = groupRead.AddItems(items);
Opc.Da.ItemValueResult[] values = groupRead.Read(items);
MessageBox.Show("Counter = " + values[0].Value.ToString() + " Speed = " + values[1].Value.ToString());
//if no exeption
this.URL = in_URL;
this.VariablesInitialized = true;
}
catch
{
this.VariablesInitialized = false;
}
}
// Form Loads.
// Checks Spot Weld Computer.
// Connects to OPC Server
private void User_Program_Part_Not_Completed_Load(object sender, EventArgs e)
{
SpotWeldID();
OPCServer = new Opc.Da.Server(OPCFactory, null);
OPCServer.Url = new Opc.URL("opcda://OHN66OPC/Kepware.KEPServerEX.V6");
OPCServer.Connect();
Fault_Off_StateWrite = new Opc.Da.SubscriptionState();
Fault_Off_StateWrite.Name = "PB_Reset_Off_Fault";
Fault_Off_StateWrite.Active = true;
Fault_Off_Write = (Opc.Da.Subscription)OPCServer.CreateSubscription(Fault_Off_StateWrite);
Fault_On_StateWrite = new Opc.Da.SubscriptionState();
Fault_On_StateWrite.Name = "PB_Reset_On_Fault";
Fault_On_StateWrite.Active = true;
Fault_On_Write = (Opc.Da.Subscription)OPCServer.CreateSubscription(Fault_On_StateWrite);
}
/// <summary>
/// 连接OPC服务器
/// </summary>
/// <returns></returns>
public bool ConnectServer()
{
_ServerStatus = "Connecting";
//先PING地址
string strIP = _ServerAddress.Split('/')[0];
if (strIP.ToLower() != "127.0.0.1" && strIP.ToLower() != "localhost")
{
Ping ping = new Ping();
PingReply pr = ping.Send(strIP);
if (pr.Status != IPStatus.Success)
{
EnqueueLog("网络出现错误:" + pr.Status.ToString());
//LogClass.Logs.Enqueue("网络出现错误:" + pr.Status.ToString());
return(false);
}
}
OpcCom.Factory fac = new OpcCom.Factory(false);
opcserver = new Opc.Da.Server(fac, new Opc.URL(string.Format(@"opcda://{0}", _ServerAddress)));
try
{
opcserver.Connect();
opcserver.ServerShutdown += new Opc.ServerShutdownEventHandler(opcserver_ServerShutdown);
Opc.Da.SubscriptionState ss = new Opc.Da.SubscriptionState();
ss.Active = true;
opcSub = opcserver.CreateSubscription(ss);
_ServerStatus = "Connected";
opcSub.DataChanged += new Opc.Da.DataChangedEventHandler(opcSub_DataChanged);
return(true);
}
catch (Exception ex)
{
EnqueueLog("连接OPC服务器出现错误:" + ex.Message);
//LogClass.Logs.Enqueue("连接OPC服务器出现错误:" + ex.Message);
_ErrorMessage = ex.Message;
_ServerStatus = "NotConnected";
return(false);
}
}
public void CreateGroup(string groupName, int updateRate)
{
try
{
m_groupState = new Opc.Da.SubscriptionState();
m_groupState.Name = groupName;
m_groupState.UpdateRate = updateRate;
m_groupState.Active = true;
m_groupRead = (Opc.Da.Subscription)m_server.CreateSubscription(m_groupState);
// callback when data are readed
// seems not supported
m_groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(group_DataChanged);
}
catch (Exception ee)
{
// aditional handling
throw ee;
}
}
public bool Connect(string serverUrl)
{
var opcServerUrl = new Opc.URL(serverUrl);
Server = new Opc.Da.Server(new OpcCom.Factory(), opcServerUrl);
try
{
//System.Net.NetworkCredential credentials = null;
//System.Net.WebProxy webProxy = null;
var connectData = new Opc.ConnectData(null, null);
Server.Connect(connectData);
var status = Server.GetStatus();
VendorInfo = status.VendorInfo;
VersionInfo = status.ProductVersion;
StatusInfo = status.StatusInfo;
// Assign a globally unique handle to the subscription.
var state = new Opc.Da.SubscriptionState()
{
Name = "RSLinxConnectApp",
Active = false,
UpdateRate = 1000,
KeepAlive = 0,
Deadband = 0,
Locale = null,
ClientHandle = Guid.NewGuid().ToString(),
ServerHandle = null
};
Subscription = Server.CreateSubscription(state) as Opc.Da.Subscription;
return(true);
}
catch (Exception e)
{
StatusInfo = e.Message;
Console.WriteLine(e.Message);
}
return(false);
}
private bool Connected = false; // True if connection was successful
//---------------------------------------------------------------------
// Initialise Communication:
public bool Init(List <OPCVar> OPCEventVarListIn, List <OPCVar> OPCWriteVarListIn, string UrlIn, string OPCTopicIn)
{
//Connect to the OPC server:
Connected = false;
OPCTopic = OPCTopicIn;
//Build dictionary of event variable data:
OPCEventVars = new Dictionary <string, OPCVarData>();
NumEventVars = 0;
foreach (OPCVar OPCVarIn in OPCEventVarListIn)
{
OPCEventVars.Add(OPCVarIn.RefName, new OPCVarData());
OPCEventVars[OPCVarIn.RefName].Name = OPCVarIn.Name;
OPCEventVars[OPCVarIn.RefName].VarType = OPCVarIn.VarType;
OPCEventVars[OPCVarIn.RefName].NotificationReceived = false;
OPCEventVars[OPCVarIn.RefName].ItemEventIndex = 0;
OPCEventVars[OPCVarIn.RefName].FullName = OPCTopic + OPCVarIn.Name;
NumEventVars++;
} // End foreach
//Build dictionary of write variable data:
OPCWriteVars = new Dictionary <string, OPCVarData>();
foreach (OPCVar OPCVarIn in OPCWriteVarListIn)
{
OPCWriteVars.Add(OPCVarIn.RefName, new OPCVarData());
OPCWriteVars[OPCVarIn.RefName].Name = OPCVarIn.Name;
OPCWriteVars[OPCVarIn.RefName].VarType = OPCVarIn.VarType;
OPCWriteVars[OPCVarIn.RefName].FullName = OPCTopic + OPCVarIn.Name;
} // End foreach
try
{
// Connect to OPC server:
Url = new Opc.URL(UrlIn);
Server = new Opc.Da.Server(Factory, null);
Server.Connect(Url, new Opc.ConnectData(new System.Net.NetworkCredential()));
// Create a write group:
groupStateWrite = new Opc.Da.SubscriptionState();
groupStateWrite.Name = "Group Write";
groupStateWrite.Active = false; //not needed to read if you want to write only
groupWrite = (Opc.Da.Subscription)Server.CreateSubscription(groupStateWrite);
// Create an event group:
groupStateEvents = new Opc.Da.SubscriptionState();
groupStateEvents.Name = "Group Events";
groupStateEvents.Active = true;
groupEvents = (Opc.Da.Subscription)Server.CreateSubscription(groupStateEvents);
// Add items to the event group:
Opc.Da.Item[] itemsEvents = new Opc.Da.Item[NumEventVars];
int j = 0;
foreach (OPCVar OPCVarIn in OPCEventVarListIn)
{
OPCEventVars[OPCVarIn.RefName].ItemEventIndex = j;
itemsEvents[j] = new Opc.Da.Item();
itemsEvents[j].ItemName = OPCEventVars[OPCVarIn.RefName].FullName;
j++;
}
itemsEvents = groupEvents.AddItems(itemsEvents);
groupEvents.DataChanged += new Opc.Da.DataChangedEventHandler(OnTransactionCompleted);
Connected = true;
return(true);
}
catch
{
return(false);
}
}
/// <summary>
/// OPC subsription procedure
/// </summary>
/// <param name="Tags">List of manitored tags</param>
public void SubscribeTags(List <mTag> Tags)
{
if (server.IsConnected)
{
List <Opc.Da.Item> opcItems = new List <Opc.Da.Item>();
bool needToAddItems = false;
foreach (mTag tag in Tags)
{
var contain = monitoredTags.Any(t => t.Name == tag.Name);
if (!contain)
{
// Repeat this next part for all the items you need to subscribe
Opc.Da.Item item = new Opc.Da.Item();
item.ItemName = tag.Name;
//item.ClientHandle = "handle"; // handle is up to you, but i use a logical name for it
item.Active = true;
item.ActiveSpecified = true;
opcItems.Add(item);
monitoredTags.Add(tag);
needToAddItems = true;
}
}
if (needToAddItems)
{
try
{
Opc.Da.SubscriptionState subscriptionState = new Opc.Da.SubscriptionState();
subscriptionState.Active = true;
subscriptionState.UpdateRate = 40;
subscriptionState.Deadband = 0;
if (opcSubscription != null)
{
}
opcSubscription = (Opc.Da.Subscription) this.server.CreateSubscription(subscriptionState);
Opc.Da.ItemResult[] result = opcSubscription.AddItems(opcItems.ToArray());
for (int i = 0; i < result.Length; i++)
{
opcItems[i].ServerHandle = result[i].ServerHandle;
}
opcSubscription.DataChanged += opcSubscription_DataChanged;
OnReportMessage("OPC tags subscription created successfully");
}
catch (Exception ex)
{
OnReportMessage("OPC tags subscription failed");
OnReportMessage(ex.Message.ToString());
}
}
}
else
{
OnReportMessage("Connect server first");
}
RefreshServerStatus();
}
/// <summary>
/// Opc와 연결을 합니다.
/// </summary>
/// <returns></returns>
public override bool Open()
{
string strMsg = string.Format("(Node:{0} / ProgID : {1} )", strIp, ProgId);
try
{
if (opc != null)
{
close();
}
string add;
//주소를 만들어 준다.
if (strIp.Equals(string.Empty))
{
add = $"opcda://localhost/{ProgId}";
}
else
{
add = $"opcda://{strIp}/{ProgId}";
}
opc = new Opc.Da.Server(fact, null);
url = new Opc.URL(add);
//서버에 연결
opc.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
//연결 후 - 테스트 할것
//opc.ServerShutdown
//그룹생성
OpcGrp_State = new Opc.Da.SubscriptionState();
OpcGrp_State.Name = strGrpName;
OpcGrp_State.UpdateRate = intUpdateRate;
OpcGrp_State.Active = true;
OpcGrp = (Opc.Da.Subscription)opc.CreateSubscription(OpcGrp_State);
OpcGrp.DataChanged += OpcGrp_DataChanged;
//opc 연결상태 체크 Timer를 시작한다.
if (this.tmrOpcCheck != null)
{
tmrOpcCheck.Dispose();
tmrOpcCheck = null;
}
// this.bolOpcStatus = true;
// this.ChConnection_Status(bolOpcStatus);
tmrOpcCheck = new Timer(new TimerCallback(tmrCheckOpcStatus), null, 0, intUpdateRate);
//this.ChConnection_Status(true);
strMsg = "Open 성공" + strMsg;
return(true);
}
catch (System.Runtime.InteropServices.ExternalException ex)
{ //activex이기 때문에 에러 발생이 제대로 되지 않아 몇가지만...
strMsg = "Open 실패 :" + ex.Message + strMsg + "\r\n" + ex.ToString();
throw ComException(ex, string.Empty);
}
catch (Exception ex)
{
strMsg = "Open 실패 :" + ex.Message + strMsg + "\r\n" + ex.ToString();
throw ex;
}
finally
{
PLCModule.clsPLCModule.LogWrite("Open", strMsg);
}
}
private void InitializeOPC()
{
try
{
if (File.Exists("settings.xml"))
{
this.CurrentCounterOfMaterial = 0;
XmlSerializer XmlSerializer1 = new XmlSerializer(typeof(Settings));
TextReader reader1 = new StreamReader("settings.xml");
Settings Settings1 = (Settings)XmlSerializer1.Deserialize(reader1);
reader1.Dispose();
if (Settings1.OPCVariablesInitialized == true)
{
// 1st: Create a server object and connect to the RSLinx OPC Server
url = new Opc.URL(Settings1.OPCConnectionString);
server = new Opc.Da.Server(fact, null);
//2nd: Connect to the created server
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
//3rd Create a group if items
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group999";
groupState.UpdateRate = 1000;// this isthe time between every reads from OPC server
groupState.Active = true;//this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
//groupRead.DataChanged += groupRead_DataChanged;
items[0] = new Opc.Da.Item();
items[0].ItemName = Settings1.OPCCounterName;
items[1] = new Opc.Da.Item();
items[1].ItemName = Settings1.OPCSpeedName;
items = groupRead.AddItems(items);
Opc.Da.ItemValueResult[] values = groupRead.Read(items);
this.previous_value_of_counter = Convert.ToInt32(values[0].Value);
this.VariablesInitialized = true;
}
}
else
{
MessageBox.Show("OPC settings is empty. See Settings - > Connection...");
this.VariablesInitialized = false;
}
}
catch
{
MessageBox.Show("Bad OPC connection. Review connection string");
this.VariablesInitialized = false;
}
}
public void Connect_OPC()
{
//Console.WriteLine("Connect_OPC");
try
{
servername = Pub_dtTSetting.Rows[0][2].ToString();
if (servername != "")
{
Opc.URL url = new Opc.URL("opcda://" + Pub_dtTSetting.Rows[0][1].ToString() + "/" + Pub_dtTSetting.Rows[0][2].ToString());
Opc.Da.Server serveropc = null;
OpcCom.Factory fact = new OpcCom.Factory();
//Kepware.KEPServerEX.V6
Opc.Da.ServerStatus serverStatus = new Opc.Da.ServerStatus();
//serveropc = new Opc.Da.Server(fact, null);
serveropc = new Opc.Da.Server(fact, url);
System.Net.NetworkCredential mCredentials = new System.Net.NetworkCredential();
Opc.ConnectData mConnectData = new Opc.ConnectData(mCredentials);
try
{
//2nd: Connect to the created server
serveropc.Connect(url, mConnectData);
#if DEBUG_ERROR
#warning you must install RSLinx server OR Kepware.KEPServerEX.V6 for install important .dll then you can easy test with Kepware.KEPServerEX.V6
#endif
//serveropc.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential())); //ไม่เปิดเซิฟเวอ จะติดตรงนี้
serverStatus = serveropc.GetStatus();
servercurrent_status = serverStatus.ServerState.ToString();
ServerStatusInTime.Text = serverStatus.ServerState.ToString();
//Append Log file if server Status running-------------------------------------------------
string CompareServerstatus = "running";
if (serverStatus.ServerState.ToString() == CompareServerstatus)
{
if (PortStatus.Text.ToString() == "Stop")
{
//StartPort.Visible = true;
}
string timeinlog = Convert.ToDateTime(DateTime.Now.ToString()).ToString("yyyy-MM-dd HH:mm:ss= ");
if (write_log == false) //First Time Write Log
{
using (StreamWriter sw = File.AppendText(AppendFilepath))
{
sw.WriteLine(timeinlog + Pub_dtTSetting.Rows[0][2].ToString() + " DCOM security The operation completed successfully");
sw.WriteLine(timeinlog + "Connected to OPC server");
sw.WriteLine(timeinlog + "MyGroup Added group to server The operation completed successfully");
}
}
write_log = true; // 1 mean don't write agian use in ReadCompleteCallback
}
//----------------------------------------------------------------
//3rd Create a group if items
Opc.Da.SubscriptionState groupState = new Opc.Da.SubscriptionState();
groupState.Name = "group";
groupState.Active = true;
group = (Opc.Da.Subscription)serveropc.CreateSubscription(groupState);
// add items to the group
Opc.Da.Item[] items = new Opc.Da.Item[Pub_dtTTAGMapping.Rows.Count];
//Add item by DataTable From Function Get_TagMapping
for (int index_Tag = 0; index_Tag < Pub_dtTTAGMapping.Rows.Count; index_Tag++)
{
items[index_Tag] = new Opc.Da.Item();
//Tag_Name
items[index_Tag].ItemName = Pub_dtTTAGMapping.Rows[index_Tag][2].ToString();//Pub_dtTTAGMapping.Rows[Row][Column]
}
items = group.AddItems(items);
this.timerModbus.Interval = (Convert.ToInt32(Pub_dtTSetting.Rows[0][5]) * 100);
this.timerModbus.AutoReset = false;
this.timerModbus.Start();
}//end try
catch (Exception)
{
servercurrent_status = "Stop";
//Exception Server Not Run
string timeinlog = Convert.ToDateTime(DateTime.Now.ToString()).ToString("yyyy-MM-dd HH:mm:ss= ");
write_log = false; // 1 mean don't write agian use in ReadCompleteCallback
ServerStatusInTime.Text = "Stop";
using (StreamWriter sw = File.AppendText(AppendFilepath))
{
//Pub_dtTSetting.Rows[0][2].ToString() => ServerName
sw.WriteLine(timeinlog + Pub_dtTSetting.Rows[0][2].ToString() + " DCOM security The operation completed successfully");
sw.WriteLine(timeinlog + "Unable to connect to OPC server");
sw.WriteLine(timeinlog + "MyGroup Unable to add group to server Unspecified error");
sw.WriteLine(timeinlog + "Service will be Reconnect To OPC Server With in 1 minutes");
}
this.timerModbus.Interval = (Convert.ToInt32(Pub_dtTSetting.Rows[0][5])) * 1000;
this.timerModbus.AutoReset = false;
this.timerModbus.Start();
} //end catch
} //end if
}
catch (Exception ex)
{
using (StreamWriter sw = File.AppendText(indebuglogFolderPath + "\\" + filename + ".txt"))
{
sw.WriteLine("ERROR : " + ex);
}
}
// 1st: Create a server object and connect to the RSLinx OPC Server
}
public void OnCheckOpc()
{
if (_model.VerificationList != null && _model.VerificationList.Any())
{
_opcServers = new Dictionary <Guid, Opc.Da.Server>();
foreach (var server in _model.VerificationList.Where(x => !string.IsNullOrEmpty(x.Connectionstring)))
{
// 1st: Create a server object and connect to the RSLinx OPC Server
//var url = new Opc.URL("opcda://10.85.5.111/Infinity.OPCServer");
var url = new Opc.URL(server.Connectionstring);
var fact = new OpcCom.Factory();
var opcServer = new Opc.Da.Server(fact, null);
//2nd: Connect to the created server
try
{
try
{
opcServer.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
}
catch
{
MessageBox.Show("Сервер " + url + " недостпуен.", "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
var id = server.Id;
_opcServers.Add(id, opcServer);
if (server.OpcStatements != null && server.OpcStatements.Any())
{
//3rd Create a group if items
var groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group of " + server.Caption;
groupState.UpdateRate = 1000; // this isthe time between every reads from OPC server
groupState.Active = true; //this must be true if you the group has to read value
var groupRead = (Opc.Da.Subscription)opcServer.CreateSubscription(groupState);
groupRead.DataChanged += new Opc.Da.DataChangedEventHandler(TagValue_DataChanged); //callback when the data are readed
var items = new List <Opc.Da.Item>();
foreach (var tag in server.OpcStatements)
{
items.Add(new Opc.Da.Item
{
ItemName = tag.TagValue,
ClientHandle = id
});
}
//// add items to the group (in Rockwell names are identified like [Name of PLC in the server]Block of word:number of word,number of consecutive readed words)
////items[0] = new Opc.Da.Item();
////items[0].ItemName = "NPS_Berez2.DPS_1.Scr.Scr1";//this reads 2 word (short - 16 bit)
////items[1] = new Opc.Da.Item();
////items[1].ItemName = "SIKN_592.BIK.Vmom";//this reads an array of 10 words (short[])
//items[0] = new Opc.Da.Item();
//items[0].ItemName = "AK.SIBNP.R_Uraj.NPS_Berez2.DPS_1.Scr.Scr1";//this reads 2 word (short - 16 bit)
//items[0].ClientHandle = Guid.NewGuid();
////items[1] = new Opc.Da.Item();
////items[1].ItemName = "AK.SIBNP.R_Uraj.SERVICE.WebRouter_AK.SIBNP.R_Uraj.StatusInt.Cause";//this reads an array of 10 words (short[])
////items[2] = new Opc.Da.Item();
////items[2].ItemName = "AK.SIBNP.R_Uraj.Offline_14";//this read a 2 word array (but in the plc the are used as bits so you have to mask them)
////items[3] = new Opc.Da.Item();
////items[3].ItemName = "AK.SIBNP.R_Uraj.Test_14";//this read a 2 word array (but in the plc the are used as bits so you have to mask them)
groupRead.AddItems(items.ToArray());
}
}
catch (Exception e)
{
MessageBox.Show("Ошибка при чтении тега OPC с сервера " + url + ". " + e.Message, "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
}
}
}
private void button1_Click(object sender, EventArgs e)
{
// 1st: Create a server object and connect to the RSLinx OPC Server
url = new Opc.URL(Settings1.OPCConnectionString);
server = new Opc.Da.Server(fact, null);
listBox1.Items.Add("1st: Create a server object and connect to the RSLinx OPC Server");
//2nd: Connect to the created server
server.Connect(url, new Opc.ConnectData(new System.Net.NetworkCredential()));
listBox1.Items.Add("2nd: Connect to the created server");
//3rd Create a group if items
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Group999";
groupState.UpdateRate = 1000;// this isthe time between every reads from OPC server
groupState.Active = true;//this must be true if you the group has to read value
groupRead = (Opc.Da.Subscription)server.CreateSubscription(groupState);
//groupRead.DataChanged += GroupRead_DataChanged; ;
//listBox1.Items.Add("Add event");
items = new Opc.Da.Item[1];
items[0] = new Opc.Da.Item();
items[0].ItemName = Settings1.OPCIntVarName;
items = groupRead.AddItems(items);
listBox1.Items.Add("Add Items");
Opc.Da.ItemValueResult[] values = groupRead.Read(items);
listBox1.Items.Add("Read(items)");
listBox1.Items.Add("========================");
listBox1.Items.Add(Convert.ToInt32(values[0].Value.ToString()));
label3.Text = values[0].Value.ToString();
}
/// <summary>
/// Vytvoření skupin pro čtení a zápis dat
/// </summary>
/// <param name="server"></param>
private void vytvoritGroups(Opc.Da.Server server)
{
if (server == null)
{
throw new ArgumentNullException("Parametr server není inicializovaný");
}
if (!server.IsConnected)
{
throw new Exception("Nelze vytvořit groups, když není připojení k serveru");
}
// Vytvoření groups pro čtení a zápis
Opc.Da.SubscriptionState groupState;
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Cteni";
groupState.Active = false;
//groupState.UpdateRate = 1000;
groupCteni = (Opc.Da.Subscription)server.CreateSubscription(groupState);
groupState = new Opc.Da.SubscriptionState();
groupState.Name = "Zapis";
groupState.Active = false;
//groupState.UpdateRate = 1000;
groupZapis = (Opc.Da.Subscription)server.CreateSubscription(groupState);
}
