protected override string OnGetDeviceIdentification(ModbusObjectId objectId)
{
switch (objectId)
{
case ModbusObjectId.VendorName:
return("Axon Instruments");
case ModbusObjectId.ProductCode:
return("AX-100");
case ModbusObjectId.MajorMinorRevision:
return("1.0");
case ModbusObjectId.VendorUrl:
return("http://www.axoninstruments.biz");
case ModbusObjectId.ProductName:
return("AXGIF");
case ModbusObjectId.ModelName:
return("GAUGE");
case ModbusObjectId.UserApplicationName:
return("GaugeModbusInterface");
}
return(null);
}
protected override string OnGetDeviceIdentification(ModbusObjectId objectId)
{
switch (objectId)
{
case ModbusObjectId.VendorName:
return("Vendor Name");
case ModbusObjectId.ProductCode:
return("101");
case ModbusObjectId.MajorMinorRevision:
return("1.0");
case ModbusObjectId.VendorUrl:
return("www.test.com.au");
case ModbusObjectId.ProductName:
return("Test Modbus");
case ModbusObjectId.ModelName:
return("1");
case ModbusObjectId.UserApplicationName:
return("SC100");
}
return(null);
}
/// <summary>
/// Is called when the value of the object id is needed for a ReadDeviceIdentification request.
/// </summary>
/// <param name="objectId">Object id.</param>
/// <returns>Returns the value of the requested object id.</returns>
protected override string OnGetDeviceIdentification(ModbusObjectId objectId)
{
return "";
}
/// <summary>
/// Reads one specific Device Information by using the function code (0x2b / 0x0e)
/// </summary>
/// <param name="deviceAddress">Address of the modbus device.</param>
/// <param name="objectId">Object id to read.</param>
/// <param name="timeout">Timeout for response in milli seconds.</param>
/// <returns>Returns the requested device information.</returns>
/// <remarks>
/// Look at http://www.modbus.org/docs/Modbus_Application_Protocol_V1_1b3.pdf for more details.
/// </remarks>
public virtual DeviceIdentification ReadSpecificDeviceIdentification(byte deviceAddress, ModbusObjectId objectId, int timeout = 4000)
{
object telegramContext = null;
[email protected](deviceAddress, (byte)ModbusFunctionCode.ReadDeviceIdentification, 3,
this.buffer, out var telegramLength, out var dataPos, false, ref telegramContext);
this.buffer[dataPos] = 0x0e;
this.buffer[dataPos + 1] = 0x04;
this.buffer[dataPos + 2] = (byte)objectId;
this.SendReceive(deviceAddress, ModbusFunctionCode.ReadDeviceIdentification, timeout, telegramLength, -1, telegramContext, ref dataPos);
if (deviceAddress == ModbusConst.BroadcastAddress)
{
return(new DeviceIdentification());
}
var cnt = this.buffer[dataPos + 5];
if (cnt == 0)
{
return(new DeviceIdentification());
}
dataPos += 6;
var v = new char[this.buffer[dataPos + 1]];
for (var n = 0; n < v.Length; ++n)
{
v[n] = (char)this.buffer[dataPos + 2 + n];
}
return(new DeviceIdentification {
ObjectId = (ModbusObjectId)this.buffer[dataPos],
Value = new string(v)
});
}
/// <summary>
/// Reads the Device Information by using the function code (0x2b / 0x0e)
/// </summary>
/// <param name="deviceAddress">Address of the modbus device.</param>
/// <param name="deviceIdCode">Device id code to read.</param>
/// <param name="objectId">Object id to start at. Receives the next object id to read from if moreFollows is set to true.</param>
/// <param name="moreFollows">Receives true if there is more information to read.</param>
/// <param name="timeout">Timeout for response in milli seconds.</param>
/// <returns>Returns an array with all device information.</returns>
/// <remarks>
/// Look at http://www.modbus.org/docs/Modbus_Application_Protocol_V1_1b3.pdf for more details.
/// </remarks>
public virtual DeviceIdentification[] ReadDeviceIdentification(byte deviceAddress, ModbusConformityLevel deviceIdCode, ref ModbusObjectId objectId, out bool moreFollows, int timeout = 2000)
{
object telegramContext = null;
[email protected](deviceAddress, (byte)ModbusFunctionCode.ReadDeviceIdentification, 3,
this.buffer, out var telegramLength, out var dataPos, false, ref telegramContext);
this.buffer[dataPos] = 0x0e;
this.buffer[dataPos + 1] = (byte)deviceIdCode;
this.buffer[dataPos + 2] = (byte)objectId;
this.SendReceive(deviceAddress, ModbusFunctionCode.ReadDeviceIdentification, timeout, telegramLength, -1, telegramContext, ref dataPos);
if (deviceAddress == ModbusConst.BroadcastAddress)
{
moreFollows = false;
return(null);
}
moreFollows = this.buffer[dataPos + 3] != 0;
objectId = (ModbusObjectId)this.buffer[dataPos + 4];
var cnt = this.buffer[dataPos + 5];
var values = new DeviceIdentification[cnt];
dataPos += 6;
for (var i = 0; i < cnt; i++)
{
var v = new char[this.buffer[dataPos + 1]];
for (var n = 0; n < v.Length; ++n)
{
v[n] = (char)this.buffer[dataPos + 2 + n];
}
values[i] = new DeviceIdentification {
ObjectId = (ModbusObjectId)this.buffer[dataPos],
Value = new string(v)
};
dataPos += (short)(2 + v.Length);
}
return(values);
}
/// <summary>
/// Is called when the value of the object id is needed for a ReadDeviceIdentification request.
/// </summary>
/// <param name="objectId">Object id.</param>
/// <returns>Returns the value of the requested object id.</returns>
protected override string OnGetDeviceIdentification(ModbusObjectId objectId)
{
return("");
}
/// <summary> /// Is called when the value of the object id is needed for a ReadDeviceIdentification request. /// </summary> /// <param name="objectId">Object id.</param> /// <returns>Returns the value of the requested object id.</returns> protected override string OnGetDeviceIdentification(ModbusObjectId objectId) => "";
/// <summary> /// Is called when the value of the object id is needed for a ReadDeviceIdentification request. /// </summary> /// <param name="objectId">Object id.</param> /// <returns>Returns the value of the requested object id.</returns> protected abstract string OnGetDeviceIdentification(ModbusObjectId objectId);
/// <summary>
/// Reads one specific Device Information by using the function code (0x2b / 0x0e)
/// </summary>
/// <param name="deviceAddress">Address of the modbus device.</param>
/// <param name="objectId">Object id to read.</param>
/// <param name="timeout">Timeout for response in milli seconds.</param>
/// <returns>Returns the requested device information.</returns>
/// <remarks>
/// Look at http://www.modbus.org/docs/Modbus_Application_Protocol_V1_1b3.pdf for more details.
/// </remarks>
public virtual DeviceIdentification ReadSpecificDeviceIdentification(byte deviceAddress, ModbusObjectId objectId, int timeout = 4000)
{
short telegramLength;
short dataPos;
object telegramContext = null;
_Interface.CreateTelegram(deviceAddress, (byte)ModbusFunctionCode.ReadDeviceIdentification, 3,
_Buffer, out telegramLength, out dataPos, false, ref telegramContext);
_Buffer[dataPos] = 0x0e;
_Buffer[dataPos + 1] = 0x04;
_Buffer[dataPos + 2] = (byte)objectId;
SendReceive(deviceAddress, ModbusFunctionCode.ReadDeviceIdentification, timeout, telegramLength, -1, telegramContext, ref dataPos);
if (deviceAddress == ModbusConst.BroadcastAddress)
{
return new DeviceIdentification();
}
byte cnt = _Buffer[dataPos + 5];
if (cnt == 0)
{
return new DeviceIdentification();
}
dataPos += 6;
var v = new char[_Buffer[dataPos + 1]];
for (int n = 0; n < v.Length; ++n)
{
v[n] = (char)_Buffer[dataPos + 2 + n];
}
return new DeviceIdentification
{
ObjectId = (ModbusObjectId)_Buffer[dataPos],
Value = new string(v)
};
}
/// <summary>
/// Reads the Device Information by using the function code (0x2b / 0x0e)
/// </summary>
/// <param name="deviceAddress">Address of the modbus device.</param>
/// <param name="deviceIdCode">Device id code to read.</param>
/// <param name="objectId">Object id to start at. Receives the next object id to read from if moreFollows is set to true.</param>
/// <param name="moreFollows">Receives true if there is more information to read.</param>
/// <param name="timeout">Timeout for response in milli seconds.</param>
/// <returns>Returns an array with all device information.</returns>
/// <remarks>
/// Look at http://www.modbus.org/docs/Modbus_Application_Protocol_V1_1b3.pdf for more details.
/// </remarks>
public virtual DeviceIdentification[] ReadDeviceIdentification(byte deviceAddress, ModbusConformityLevel deviceIdCode, ref ModbusObjectId objectId, out bool moreFollows, int timeout = 2000)
{
short telegramLength;
short dataPos;
object telegramContext = null;
_Interface.CreateTelegram(deviceAddress, (byte)ModbusFunctionCode.ReadDeviceIdentification, 3,
_Buffer, out telegramLength, out dataPos, false, ref telegramContext);
_Buffer[dataPos] = 0x0e;
_Buffer[dataPos + 1] = (byte)deviceIdCode;
_Buffer[dataPos + 2] = (byte)objectId;
SendReceive(deviceAddress, ModbusFunctionCode.ReadDeviceIdentification, timeout, telegramLength, -1, telegramContext, ref dataPos);
if (deviceAddress == ModbusConst.BroadcastAddress)
{
moreFollows = false;
return null;
}
moreFollows = _Buffer[dataPos + 3] != 0;
objectId = (ModbusObjectId) _Buffer[dataPos + 4];
byte cnt = _Buffer[dataPos + 5];
var values = new DeviceIdentification[cnt];
dataPos += 6;
for (int i = 0; i < cnt; i++)
{
var v = new char[_Buffer[dataPos + 1]];
for (int n = 0; n < v.Length; ++n)
{
v[n] = (char) _Buffer[dataPos + 2 + n];
}
values[i] = new DeviceIdentification
{
ObjectId = (ModbusObjectId) _Buffer[dataPos],
Value = new string(v)
};
dataPos += (short)(2 + v.Length);
}
return values;
}
/// <summary> /// Is called when the value of the object id is needed for a ReadDeviceIdentification request. /// </summary> /// <param name="objectId">Object id.</param> /// <returns>Returns the value of the requested object id.</returns> protected abstract string OnGetDeviceIdentification(ModbusObjectId objectId);
