SiemensS7Communication.cs
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using HHECS.BllModel;
using HHECS.EquipmentModel;
using HslCommunication;
using HslCommunication.Core.Address;
using HslCommunication.Profinet.Siemens;
using System.Text;
namespace HHECS.DAQClient.Communications
{
/// <summary>
/// 西门子通信
/// </summary>
public class SiemensS7Communication : ICommunication
{
public readonly SiemensS7Net Siemens = null!;
public string IpAddress => Siemens.IpAddress;
public int CommunicationId { get; set; }
private SiemensS7Communication() { }
public SiemensS7Communication(int communicationId, SiemensPLCS siemens, string ipAddress)
{
CommunicationId = communicationId;
Siemens = new SiemensS7Net(siemens, ipAddress);
Siemens.SetPersistentConnection();
}
public BllResult ConnectServer()
{
var result = Siemens.ConnectServer();
if (!result.IsSuccess)
{
return BllResultFactory.Error(result.Message);
}
return BllResultFactory.Success();
}
public BllResult ConnectClose()
{
Siemens.ConnectClose();
return BllResultFactory.Success();
}
public BllResult Read(IEnumerable<DataItem> dataItems)
{
try
{
var addressDatas = new List<S7AddressData>();
foreach (var item in dataItems)
{
ushort byteLength = GetByteLength(item);
var i = item.DataAddress.IndexOf(',');
var address = i > 0 ? item.DataAddress[..i] : item.DataAddress;
var parseResult = S7AddressData.ParseFrom(address, byteLength);
if (!parseResult.IsSuccess)
{
return BllResultFactory.Error(parseResult.Message);
}
addressDatas.Add(parseResult.Content);
}
var result = Siemens.Read(addressDatas.ToArray());
if (!result.IsSuccess)
{
return BllResultFactory.Error(result.Message);
}
var buffer = result.Content;
var byteIndex = 0;
foreach (var item in dataItems)
{
_ = ushort.TryParse(item.DataAddress.Split('.').LastOrDefault(), out var bitIndex);
item.Value = item.DataType switch
{
EquipmentDataType.BYTE => Siemens.ByteTransform.TransByte(buffer, byteIndex).ToString(),
EquipmentDataType.BOOL => Convert.ToBoolean(buffer[byteIndex] & 1 << bitIndex).ToString(),
EquipmentDataType.DINT => Siemens.ByteTransform.TransInt32(buffer, byteIndex).ToString(),
EquipmentDataType.DWORD => Siemens.ByteTransform.TransUInt32(buffer, byteIndex).ToString(),
EquipmentDataType.WORD => Siemens.ByteTransform.TransUInt16(buffer, byteIndex).ToString(),
EquipmentDataType.INT => Siemens.ByteTransform.TransInt16(buffer, byteIndex).ToString(),
EquipmentDataType.CHAR => Siemens.ByteTransform.TransString(buffer, byteIndex, item.Length, Encoding.ASCII).Replace("\u0003", "").Trim(),
EquipmentDataType.REAL => Siemens.ByteTransform.TransSingle(buffer, byteIndex).ToString(),
_ => string.Empty,
};
byteIndex += GetByteLength(item);
}
return BllResultFactory.Success();
}
catch (Exception ex)
{
return BllResultFactory.Error($"读取PLC[{Siemens.IpAddress}]数据出现异常：{ex.Message}");
}
}
public BllResult Read(DataItem dataItem)
{
return Read([dataItem]);
}
public BllResult Write(IEnumerable<DataItem> dataItems)
{
try
{
var result = new OperateResult();
foreach (var item in dataItems)
{
if (item.DataType == EquipmentDataType.BOOL)
{
_ = bool.TryParse(item.Value, out bool val);
result = Siemens.Write(item.DataAddress, val);
}
else if (item.DataType == EquipmentDataType.INT)
{
_ = ushort.TryParse(item.Value, out ushort val);
result = Siemens.Write(item.DataAddress, val);
}
else if (item.DataType == EquipmentDataType.REAL)
{
_ = float.TryParse(item.Value, out var val);
result = Siemens.Write(item.DataAddress, val);
}
else
{
var bytes = Encoding.Default.GetBytes(item.Value ?? string.Empty);
result = Siemens.Write(item.DataAddress, bytes);
}
if (!result.IsSuccess)
{
return BllResultFactory.Error($"写入PLC[{Siemens.IpAddress}]_{item.DataAddress}地址数据失败：{result.Message}");
}
}
return BllResultFactory.Success();
}
catch (Exception ex)
{
return BllResultFactory.Error($"写入PLC[{Siemens.IpAddress}]数据出现异常：{ex.Message}");
}
}
public BllResult Write(DataItem dataItem)
{
return Write([dataItem]);
}
private static ushort GetByteLength(DataItem data) => data.DataType switch
{
EquipmentDataType.BOOL => 1,
EquipmentDataType.WORD => 2,//UInt16
EquipmentDataType.DWORD => 4,//UInt32
EquipmentDataType.INT => 2,//Int16
EquipmentDataType.DINT => 4,//Int32
EquipmentDataType.CHAR or
EquipmentDataType.BYTE => data.Length,
EquipmentDataType.REAL => 4,//Float
_ => data.Length
};
}
}