private string conectOPC(string id_opcClient)
{
var opcClient = repo._context.sys_opc_clients.Where(t => t.id == id_opcClient).Select(t => t.opc_client).SingleOrDefault();
var client = new OpcClient(opcClient);
try
{
client.Connect();
}
catch (Exception e)
{
return(e.Message);
}
client.Dispose();
return("Kết nối thành công");
}
private string conectOPC(string id_opcClient, string opcnode)
{
var opcClient = repo._context.sys_opc_clients.Where(t => t.id == id_opcClient).Select(t => t.opc_client).SingleOrDefault();
var client = new OpcClient(opcClient);
try
{
client.Connect();
}
catch (Exception e)
{
writelogcmd("Cannot connection: " + e.Message);
return(null);
}
var Value = client.ReadNode(new OpcReadNode(opcnode, OpcAttribute.Value));
client.Dispose();
return(Value.ToString() ?? "");
}
public IActionResult getopcvalue([FromBody] JObject json)
{
var model = JsonConvert.DeserializeObject <sys_opc_view_model>(json.GetValue("data").ToString());
try
{
var client = new OpcClient(model.opc_client);
client.Connect();
model.value_input = client.ReadNode(new OpcReadNode(model.opc_node_input, OpcAttribute.Value)).ToString();
model.value_output = client.ReadNode(new OpcReadNode(model.opc_node_output, OpcAttribute.Value)).ToString();
model.value_error = client.ReadNode(new OpcReadNode(model.opc_node_output, OpcAttribute.Value)).ToString();
for (int i = 0; i < model.list_param.Count; i++)
{
model.list_param[i].value = client.ReadNode(new OpcReadNode(model.list_param[i].opc_node, OpcAttribute.Value)).ToString();
}
client.Dispose();
}
catch (Exception e)
{
return(Json(e.Message));
}
return(Json(model));
}
public virtual void Dispose()
{
_OpcClient.Close();
_OpcClient.Dispose();
}
public void Dispose()
{
_client.Dispose();
}