/// <summary>
/// Method for removing modbus device - returns null if there is no device of given port and unitId
/// </summary>
/// <param name="port"></param>
/// <param name="unitIdentifier"></param>
/// <returns></returns>
public static ModbusDevice RemoveDevice(Int32 port, byte unitIdentifier = 1)
{
var server = ModbusFactory.GetServer(port);
if (server == null)
{
return(null);
}
var device = server.GetModbusDevice(unitIdentifier);
if (device == null)
{
return(null);
}
server.RemoveModbusDevice(unitIdentifier);
if (server.GetNumberOfModbusDevices() <= 0)
{
ModbusFactory.RemoveServer(port);
}
return(device);
}
/// <summary>
/// Method for enabling device to communicate
/// </summary>
public void Enable()
{
if (!this.Enabled)
{
//Starting listening for server - method doesn't call listen if server is already listening
ModbusFactory.StartListening(this.Port);
this._enabled = true;
}
}
/// <summary>
/// Method for creating new device - returns existing one if device of given port and unitId exists
/// </summary>
/// <param name="port"></param>
/// <param name="unitIdentifier"></param>
/// <returns></returns>
public static ModbusDevice CreateNewDevice(Int32 port, byte unitIdentifier = 1)
{
//Creating new modbus server - method for create returns exisitng one if server exists
var server = ModbusFactory.CreateServer(port);
//Creating new device - method for create returns exisitng one if device exists
var device = server.CreateModbusDevice(unitIdentifier);
return(device);
}
/// <summary>
/// Method for disabling device to communicate
/// </summary>
public void Disable()
{
if (this.Enabled)
{
//Stopping server communication if this the device is the only one that listens
if (ModbusFactory.GetNumberOfEnabledDevices(this.Port) <= 1)
{
ModbusFactory.StopListening(this.Port);
}
this._enabled = false;
}
}
/// <summary>
/// Method for getting modbus device - returns null if there is no device of given port and unitId
/// </summary>
/// <param name="port"></param>
/// <param name="unitIdentifier"></param>
/// <returns></returns>
public static ModbusDevice GetDevice(Int32 port, byte unitIdentifier = 1)
{
var server = ModbusFactory.GetServer(port);
if (server == null)
{
return(null);
}
var device = server.GetModbusDevice(unitIdentifier);
return(device);
}
