SiemensPLC.cs
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using RCS.Model.Comm;
using RCS.Model.Entity;
using RCS.Model.PLC;
using HslCommunication;
using HslCommunication.Core;
using HslCommunication.Profinet.Siemens;
using System.Text;
namespace RCS.Communication
{
/// <summary>
/// 西门子PLC处理类
/// </summary>
public class SiemensPLC : BasePLC
{
/// <summary>
/// 开启批量读取的限制数目，于此相关的均需要实际测试性能情况。
/// </summary>
const int batchInt = 5;
/// <summary>
/// 读写锁，因为里面已经是多线程处理了，不许外部再进行多线程调用
/// </summary>
private object Lock { get; set; } = new object();
/// <summary>
/// 西门子PLC的S7连接
/// </summary>
private SiemensS7Net siemensS7Net;
/// <summary>
/// 转换类
/// </summary>
private ReverseBytesTransform reverseBytesTransform = new ReverseBytesTransform();
/// <summary>
/// 初始化西门子S7连接
/// </summary>
/// <param name="siemensPLCS">PLC型号</param>
/// <param name="ip">IP地址</param>
public SiemensPLC(SiemensPLCS siemensPLCS, string ip)
{
IP = ip;
//siemensS7Net = new SiemensS7Net(siemensPLCS, ip);
siemensS7Net = new SiemensS7Net(siemensPLCS, ip) { ConnectTimeOut = 1000, ReceiveTimeOut = 1000 };
siemensS7Net.Port = 102;
}
/// <summary>
/// 占用字节校验
/// </summary>
/// <param name="type"></param>
/// <returns></returns>
public static bool CheckByteSize(PLCDataType type, int byteSize)
{
switch (type)
{
case PLCDataType.BYTE:
case PLCDataType.BOOL:
return byteSize == 1;
case PLCDataType.WORD:
case PLCDataType.INT:
return byteSize == 2;
case PLCDataType.DWORD:
case PLCDataType.DINT:
return byteSize == 4;
case PLCDataType.CHAR:
return true;
default:
return true;
}
}
#region 类型转换
/// <summary>
/// 数据转换，byte[]到string
/// </summary>
/// <param name="dataType"></param>
/// <param name="buffer"></param>
/// <returns></returns>
public BllResult<string> TransferBufferToString(byte[] byteBuffer, string dataType, int bitOffset)
{
try
{
if (!Enum.TryParse(dataType, out PLCDataType plcDataType))
{
return BllResult<string>.Error("未识别的数据类型");
}
switch (plcDataType)
{
case PLCDataType.BYTE:
//字节转成int处理
return BllResult<string>.Success(reverseBytesTransform.TransInt32(byteBuffer, 0).ToString(), null);
case PLCDataType.BOOL:
//对于bool类型，我们需要判断此字节中的指定位是否为0
return BllResult<string>.Success(GetBit(byteBuffer[0], bitOffset) == 1 ? true.ToString() : false.ToString(), null);
case PLCDataType.DWORD:
return BllResult<string>.Success(reverseBytesTransform.TransUInt32(byteBuffer, 0).ToString(), null);
case PLCDataType.WORD:
return BllResult<string>.Success(reverseBytesTransform.TransUInt16(byteBuffer, 0).ToString(), null);
case PLCDataType.INT:
return BllResult<string>.Success(reverseBytesTransform.TransInt16(byteBuffer, 0).ToString(), null);
case PLCDataType.DINT:
return BllResult<string>.Success(reverseBytesTransform.TransInt32(byteBuffer, 0).ToString(), null);
case PLCDataType.CHAR:
return BllResult<string>.Success(reverseBytesTransform.TransString(byteBuffer, 0, byteBuffer.Length, Encoding.ASCII).Replace("\u0003", "").Replace("\0", "").Trim(), null);
default:
return BllResult<string>.Success("未识别");
}
}
catch (Exception ex)
{
return BllResult<string>.Error($"方法【TransferBufferToString】数据类型转换出现异常，原因：{ex.Message}，堆栈：{ex.StackTrace}");
}
}
/// <summary>
/// 数据转换，string到byte[]
/// </summary>
/// <param name="dataType"></param>
/// <param name="value"></param>
/// <returns></returns>
public BllResult<byte[]> TransferStringToBuffer(PLCDataType dataType, string value, int stringLength)
{
try
{
switch (dataType)
{
case PLCDataType.BYTE:
return BllResult<byte[]>.Success(reverseBytesTransform.TransByte(Convert.ToInt32(value)));
case PLCDataType.BOOL:
return BllResult<byte[]>.Success(reverseBytesTransform.TransByte(Convert.ToBoolean(value)));
case PLCDataType.DWORD:
return BllResult<byte[]>.Success(reverseBytesTransform.TransByte(Convert.ToUInt32(value)));
case PLCDataType.WORD:
return BllResult<byte[]>.Success(reverseBytesTransform.TransByte(Convert.ToUInt16(value)));
case PLCDataType.INT:
return BllResult<byte[]>.Success(reverseBytesTransform.TransByte(Convert.ToInt16(value)));
case PLCDataType.DINT:
return BllResult<byte[]>.Success(reverseBytesTransform.TransByte(Convert.ToInt32(value)));
case PLCDataType.CHAR:
return BllResult<byte[]>.Success(reverseBytesTransform.TransByte(value.PadRight(stringLength, ' '), Encoding.ASCII));
case PLCDataType.Real:
return BllResult<byte[]>.Success(reverseBytesTransform.TransByte(float.Parse(value)));
default:
return BllResult<byte[]>.Success("未识别的数据类型");
}
}
catch (Exception ex)
{
return BllResult<byte[]>.Error($"方法【TransferStringToBuffer】数据类型转换出现异常，原因：{ex.Message}，堆栈：{ex.StackTrace}");
}
}
#endregion
#region PLC操作
/// <summary>
/// 对内部关联的所有PLC进行连接,存在连接失败，则连接失败
/// </summary>
/// <returns></returns>
public override BllResult Connect()
{
try
{
var result = siemensS7Net.ConnectServer();
if (!result.IsSuccess)
{
//连接失败，则失败
return BllResult.Error($"连接PLC：{siemensS7Net.IpAddress}失败：{result.Message}");
}
return BllResult.Success("连接PLC成功");
}
catch (Exception ex)
{
return BllResult.Error("连接PLC出现异常，IP:" + siemensS7Net.IpAddress + "，原因：" + ex.Message + "，堆栈：" + ex.StackTrace);
}
}
/// <summary>
/// 断开所有PLC
/// </summary>
/// <returns></returns>
public override BllResult DisConnect()
{
try
{
//基本不需要查看断开成功与否
siemensS7Net.ConnectClose();
return BllResult.Success("断开PLC成功");
}
catch (Exception ex)
{
return BllResult.Error("断开PLC出现异常，IP:" + siemensS7Net.IpAddress + "，原因：" + ex.Message + "，堆栈：" + ex.StackTrace);
}
}
/// <summary>
/// 获取连接状态
/// 由于HSL不支持状态访问，所以这里直接返回成功，需要通过读写函数的返回值判断连接是否断开
/// </summary>
/// <returns></returns>
public override BllResult GetConnectStatus()
{
return BllResult.Success();
}
/// <summary>
/// PLC读取方法
/// </summary>
/// <param name="equipmentProps"></param>
/// <returns></returns>
public override BllResult Reads(List<Base_EquipmentProp> equipmentProps)
{
lock (Lock)
{
try
{
if (equipmentProps.Count > batchInt)
{
var addressDic = new Dictionary<string, ushort>();
//因为1个字节有7个位，批量读取是按照字节来的，所以bool类型的属性会有大量重复，用addressDic保存不重复的地址，然后去查询PLC数据
foreach (var equipmentProp in equipmentProps)
{
if (!addressDic.ContainsKey(equipmentProp.BatchAddress))
{
addressDic.Add(equipmentProp.BatchAddress, equipmentProp.ByteSize);
}
}
//按照批量地址读取PLC的值，返回的数据都在一个byte数组中
OperateResult<byte[]> operateResult = siemensS7Net.Read(addressDic.Keys.ToArray(), addressDic.Values.ToArray());
if (!operateResult.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + "，参考信息：" + operateResult.Message?.Replace(Environment.NewLine, ""));
}
List<byte> operateContent = operateResult.Content.ToList();
//按照每个地址的长度，截取对应的数据转化为字符串，然后再去截取下个地址的值，一直循环整个。
foreach (var address in addressDic)
{
IEnumerable<byte> operateBuffer = operateContent.Take(address.Value);
if (operateBuffer.Count() != address.Value)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + "获取的字节序列个数与属性需求字节个数不匹配");
}
var byteBuffer = operateBuffer.ToArray();
operateContent = operateContent.Skip(address.Value).ToList();
//查询出来的数据，根据地址取匹配设备属性，一个地址可以匹配7个bool量，然后再根据BitOffset取获取值
foreach (var equipmentProp in equipmentProps.Where(t => t.BatchAddress == address.Key))
{
BllResult<string> operateValue = TransferBufferToString(byteBuffer, equipmentProp.DataType, equipmentProp.BitOffset);
if (!operateValue.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "，转换数据失败:" + operateValue.Message);
}
equipmentProp.Value = operateValue.Data;
}
}
#region 旧写法
//List<string> address = new List<string>();
//List<ushort> length = new List<ushort>();
//foreach (var equipmentProp in equipmentProps)
//{
// address.Add(equipmentProp.BatchAddress);
// length.Add(equipmentProp.ByteSize);
//}
//OperateResult<byte[]> operateResult = siemensS7Net.Read(address.ToArray(), length.ToArray());
//if (!operateResult.IsSuccess)
//{
// return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + "，参考信息：" + operateResult.Message?.Replace(Environment.NewLine, ""));
//}
//List<byte> operateContent = operateResult.Content.ToList();
//foreach (var equipmentProp in equipmentProps)
//{
// IEnumerable<byte> operateBuffer = operateContent.Take(equipmentProp.ByteSize);
// if (operateBuffer.Count() != equipmentProp.ByteSize)
// {
// return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + "获取的字节序列个数与属性需求字节个数不匹配");
// }
// equipmentProp.Buffer = operateBuffer.ToArray();
// operateContent = operateContent.Skip(equipmentProp.ByteSize).ToList();
// BllResult<string> operateValue = TransferBufferToString(equipmentProp);
// if (!operateValue.Success)
// {
// return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "，转换数据失败:" + operateValue.Msg);
// }
// equipmentProp.Value = operateValue.Data;
//}
#endregion
}
else
{
foreach (var equipmentProp in equipmentProps)
{
if (!Enum.TryParse(equipmentProp.DataType, out PLCDataType plcDataType))
{
return BllResult.Error("读取PLC错误，未识别的数据类型");
}
switch (plcDataType)
{
case PLCDataType.BYTE:
{
OperateResult<byte> operateResult3 = siemensS7Net.ReadByte(equipmentProp.Address);
if (!operateResult3.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "发生错误：" + operateResult3.Message?.Replace(Environment.NewLine, ""));
}
equipmentProp.Value = ((int)operateResult3.Content).ToString();
break;
}
case PLCDataType.BOOL:
{
OperateResult<bool> operateResult7 = siemensS7Net.ReadBool(equipmentProp.Address);
if (!operateResult7.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "发生错误：" + operateResult7.Message?.Replace(Environment.NewLine, ""));
}
equipmentProp.Value = operateResult7.Content.ToString();
break;
}
case PLCDataType.DWORD:
{
OperateResult<uint> operateResult4 = siemensS7Net.ReadUInt32(equipmentProp.Address);
if (!operateResult4.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "发生错误：" + operateResult4.Message?.Replace(Environment.NewLine, ""));
}
equipmentProp.Value = operateResult4.Content.ToString();
break;
}
case PLCDataType.WORD:
{
OperateResult<ushort> operateResult6 = siemensS7Net.ReadUInt16(equipmentProp.Address);
if (!operateResult6.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "发生错误：" + operateResult6.Message?.Replace(Environment.NewLine, ""));
}
equipmentProp.Value = operateResult6.Content.ToString();
break;
}
case PLCDataType.INT:
{
OperateResult<short> operateResult8 = siemensS7Net.ReadInt16(equipmentProp.Address);
if (!operateResult8.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "发生错误：" + operateResult8.Message?.Replace(Environment.NewLine, ""));
}
equipmentProp.Value = operateResult8.Content.ToString();
break;
}
case PLCDataType.DINT:
{
OperateResult<int> operateResult5 = siemensS7Net.ReadInt32(equipmentProp.Address);
if (!operateResult5.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "发生错误：" + operateResult5.Message?.Replace(Environment.NewLine, ""));
}
equipmentProp.Value = operateResult5.Content.ToString();
break;
}
case PLCDataType.CHAR:
{
OperateResult<string> operateResult2 = siemensS7Net.ReadString(equipmentProp.Address, equipmentProp.ByteSize);
if (!operateResult2.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "发生错误：" + operateResult2.Message?.Replace(Environment.NewLine, ""));
}
equipmentProp.Value = operateResult2.Content.ToString();
break;
}
case PLCDataType.Real:
{
var operateResult6 = siemensS7Net.ReadFloat(equipmentProp.Address);
if (!operateResult6.IsSuccess)
{
return BllResult.Error("读取PLC错误，IP:" + siemensS7Net.IpAddress + ",地址" + equipmentProp.Address + "发生错误：" + operateResult6.Message?.Replace(Environment.NewLine, ""));
}
equipmentProp.Value = operateResult6.Content.ToString();
break;
}
default:
return BllResult.Error($"读取PLC错误，未识别的数据类型:{equipmentProp.DataType}");
}
}
}
return BllResult.Success();
}
catch (Exception ex)
{
return BllResult.Error("读取PLC错误，出现异常，IP:" + siemensS7Net.IpAddress + "，原因：" + ex.Message + "，堆栈：" + ex.StackTrace);
}
}
}
/// <summary>
/// PLC写入方法
/// </summary>
/// <param name="equipmentProps"></param>
/// <returns></returns>
public override BllResult<List<string>> Writes(List<Base_EquipmentProp> equipmentProps)
{
lock (Lock)
{
List<string> messageList = new List<string>();
try
{
foreach (var equipmentProp in equipmentProps)
{
if (!Enum.TryParse(equipmentProp.DataType, out PLCDataType plcDataType))
{
return BllResult<List<string>>.Error("写入PLC失败，未识别的数据类型");
}
BllResult<byte[]> bllResult = TransferStringToBuffer(plcDataType, equipmentProp.Value, equipmentProp.ByteSize);
if (!bllResult.IsSuccess)
{
return BllResult<List<string>>.Error("写入PLC失败，转换到PLC数据类型失败，IP:" + siemensS7Net.IpAddress + ",地址：" + equipmentProp.Address + ":" + bllResult.Message);
}
byte[] data = bllResult.Data;
OperateResult operateResult = null;
if (equipmentProp.DataType == PLCDataType.BOOL.ToString())
{
operateResult = siemensS7Net.Write(equipmentProp.Address, bool.Parse(equipmentProp.Value));
}
else
{
operateResult = siemensS7Net.Write(equipmentProp.Address, data);
}
if (!operateResult.IsSuccess)
{
var message = $"写入PLC【{siemensS7Net.IpAddress}】失败，失败原因：【{operateResult.Message?.Replace(Environment.NewLine, "")}】,设备：【{equipmentProp.Equipment.Name}】";
messageList.Add(message + $"，设备属性：【{ equipmentProp.Code}】【{ equipmentProp.Name}】，地址:【{ equipmentProp.Address}】，数据：【{ equipmentProp.Value}】");
return BllResult<List<string>>.Error(messageList, message);
}
else if (equipmentProp.Code != EnumPLC.RCSHuaHengProps.RCSHeart.ToString())
{
messageList.Add($"写入PLC【{siemensS7Net.IpAddress}】成功，设备：【{equipmentProp.Equipment.Name}】，设备属性：【{equipmentProp.Code}】【{equipmentProp.Name}】，地址:【{equipmentProp.Address}】，数据：【{equipmentProp.Value}】");
}
}
return BllResult<List<string>>.Success(messageList, "写入PLC成功！");
}
catch (Exception ex)
{
var message = $"写入PLC【{siemensS7Net.IpAddress}】失败，异常原因：{ex.Message}";
messageList.Add(message + "，堆栈：" + ex.StackTrace);
return BllResult<List<string>>.Error(messageList, message);
}
}
}
#endregion
}
}