public void Update_Device_Tags()
{
// prepare
var dvConfig = new DeviceConfig
{
Name = "plc01",
Driver = "s7",
Config = "host=127.0.0.1;rack=0;slot=0",
Tags = (new DeviceTagConfig[]
{
new DeviceTagConfig
{
Name = "tag1",
TypeCode = TypeCode.Int32,
Mode = Modes.FromOTM, // write to plc
Address = "db801.dw0",
Rate = 50
},
new DeviceTagConfig
{
Name = "tag2",
TypeCode = TypeCode.Int32,
Mode = Modes.ToOTM, // read from plc
Address = "db800.dw12",
Rate = 50
}
}).ToList()
};
var buffer = new byte[13];
byte dw10 = 99;
var clientMock = new Mock <IS7Client>();
// on the first call conected will be False
clientMock.Setup(x => x.Connected).Returns(true);
clientMock.Setup(x => x.ConnectTo("127.0.01", 0, 0))
.Returns(0);
clientMock.Setup(x => x.ErrorText(0)).Returns("No error");
clientMock.Setup(x => x.DBRead(800, 0, 16, It.IsAny <byte[]>()))
.Callback <int, int, int, byte[]>((dbNumber, start, lenght, buf) =>
{
// change second byte of dw13
buf[13] = dw10;
});
clientMock.Setup(x => x.DBRead(801, 0, 4, It.IsAny <byte[]>()))
.Callback <int, int, int, byte[]>((dbNumber, start, lenght, buf) =>
{
// change second byte of dw13
//buf[13] = dw10;
});
var loggerMock = new Mock <ILogger>();
var devPlc01 = new S7Device();
devPlc01.Init(dvConfig, clientMock.Object, loggerMock.Object);
devPlc01.ReadDeviceTags();
var tag2 = -1;
// update tag value to 0
dw10 = 1;
// assign a function to be executed when tag value is changed
devPlc01.OnTagChangeAdd("tag2", (str, value) =>
{
tag2 = (int)value;
});
devPlc01.ReadDeviceTags();
Assert.Equal(1, tag2);
// update tag value to 1
dw10 = 2;
devPlc01.ReadDeviceTags();
Assert.Equal(2, tag2);
}
public static IDictionary <string, IDevice> CreateDevices(List <DeviceConfig> devicesConfig, ILogger logger)
{
var devices = new Dictionary <string, IDevice>();
if (devicesConfig != null)
{
foreach (var dvConfig in devicesConfig)
{
if (string.IsNullOrWhiteSpace(dvConfig.Name))
{
var ex = new Exception("Invalid Device name in config. Name:" + dvConfig.Name);
ex.Data.Add("field", "Name");
throw ex;
}
logger.LogDebug($"Device {dvConfig?.Name}: Intializing with driver '{dvConfig.Driver}'");
switch (dvConfig.Driver)
{
case "s7":
var client = new S7Client()
{
PduSizeRequested = 960
};
var s7Device = new S7Device();
s7Device.Init(dvConfig, client, logger);
devices.Add(dvConfig.Name, s7Device);
logger.LogDebug($"Device {dvConfig?.Name}: Created");
break;
case "ptl":
var ptlDevice = new PtlDevice();
ptlDevice.Init(dvConfig, logger);
devices.Add(dvConfig.Name, ptlDevice);
logger.LogDebug($"Device {dvConfig?.Name}: Created");
break;
case "RabbitMq":
var rabbitMqDevice = new RabbitMqDevice();
rabbitMqDevice.Init(dvConfig, logger);
devices.Add(dvConfig.Name, rabbitMqDevice);
logger.LogDebug($"Device {dvConfig?.Name}: Created");
break;
default:
try
{
var pluginsNames = PluginLoadContext.GetDevicePlugins(logger);
var pluginName = pluginsNames.Single(x => x.Name == dvConfig.Driver);
var device = PluginLoadContext.LoadAndCreateDevicePlugin(pluginName.FileName, logger);
device.Init(dvConfig, logger);
devices.Add(dvConfig.Name, device);
}
catch (Exception ex)
{
var ex2 = new Exception("Invalid DeviceDriver in config. Driver:" + dvConfig.Driver, ex);
ex2.Data.Add("field", "Driver");
throw ex2;
}
break;
}
}
}
return(devices);
}