public T ReadTag <T>(string command)
{
StartOPcServerIfStopped();
T result = default(T);
ItemProperties[] item = null;
//get value of command.
item = opcServer.GetProperties(new string[1] {
command
}, true, new int[] { 2 });
bool bOk = false;
bOk = item != null && item.Length > 0;
bOk &= bOk &&
item[0].Properties != null && item[0].Properties.Length > 0;
if (item[0].Properties == null)
{
return(result);
}
Property property = item[0].Properties[0];
if (property.Value != null)
{
result = (T)property.Value;
}
return(result);
}
public bool IsCameraHealthy(string command)
{
bool result = false;
//qualityBits machineQuality = qualityBits.bad;
try
{
camOpcServer = OpcConnection.GetOPCServerConnection();
ItemProperties[] item = null;
//get value of command.
item = objOpcServer.GetProperties(new string[1] {
command
}, true, new int[] { 3 });
Property property = item[0].Properties[0];
result = ((OPCDA.OPCQuality)property.Value).QualityField == OPCDA.qualityBits.good;
}
catch (Exception errMsg)
{
result = false;
Console.WriteLine(errMsg.Message);
}
finally
{
//Console.WriteLine(command);
}
return(result);
}
public T PhotoReadTag <T>(string command)
{
T result = default(T);
int counter = 1;
bool loopValue = true;
while (loopValue == true)
{
if (counter == 20)
{
loopValue = false;
}
counter += 1;
try
{
ItemProperties[] item = null;
item = camOPCServer.GetProperties(new string[1] {
command
}, true, new int[] { 2 });
Property property = item[0].Properties[0];
result = (T)property.Value;
}
catch (Exception errMsg)
{
}
finally
{
}
}
return(result);
}
public T ReadTag <T>(string channel, string machine, string tagName)
{
T result = default(T);
string command = channel + "." + machine + "." + tagName;
objOpcServer = OpcConnection.GetOPCServerConnection();
try
{
if (IsMachineHealthy(command))
{
ItemProperties[] item = null;
//get value of command.
item = objOpcServer.GetProperties(new string[1] {
command
}, true, new int[] { 2 });
Property property = item[0].Properties[0];
result = (T)Convert.ChangeType(property.Value, typeof(T));
}
else
{
//MethodDebug("OPC READ = MACHINE IS NOT HEALTHY, COMMAND =" + command);
}
}
catch (Exception errMsg)
{
Console.WriteLine(errMsg.Message);
}
finally
{
}
return(result);
}
