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); }