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386 lines
14 KiB
C#

2 months ago
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Mesnac.Equips;
namespace Mesnac.Equip.OMRON.HostLink.COM
{
/// <summary>
/// 三菱通讯封装设备类
/// </summary>
public class Equip : BaseEquip
{
private SerialPortFactory _serialPortFactory = null; //SerialPortFactory.GetInstance("00", "COM3", 9600, "Even", 7, "2", 1024);
private bool _isOpen = false; //是否打开连接
/// <summary>
/// 获取串口工厂
/// </summary>
/// <returns></returns>
private SerialPortFactory GetSerialPortFactory()
{
Mesnac.Equips.Connection.COM.ConnType connType = (Mesnac.Equips.Connection.COM.ConnType)this.Main.ConnType;
string stationNum = connType.StationNum;
string portName = connType.PortName;
int baudRate = connType.BaudRate;
string parity = connType.Parity;
int dataBits = connType.DataBits;
string stopBits = connType.StopBits;
int buffSize = connType.BuffSize;
this._serialPortFactory = SerialPortFactory.GetInstance(stationNum, portName, baudRate, parity, dataBits, stopBits, buffSize);
return this._serialPortFactory;
}
/// <summary>
/// 打开PLC设备
/// </summary>
/// <returns></returns>
public override bool Open()
{
lock (this)
{
try
{
if (this._isOpen == true || (_serialPortFactory != null && _serialPortFactory.MainSerialPort.IsOpen))
{
return true;
}
this.State = false;
this._serialPortFactory = this.GetSerialPortFactory();
this._serialPortFactory.MainSerialPort.Open();
if (!_serialPortFactory.MainSerialPort.IsOpen)
{
ICSharpCode.Core.LoggingService.Warn("PLC连接失败串口未打开失败!");
this.State = false;
return this.State;
}
else
{
this.State = true;
this._isOpen = true;
//Console.WriteLine("连接成功!");
return this.State;
}
}
catch (Exception ex)
{
this.State = false;
this._isOpen = false;
Console.WriteLine(ex.Message);
return this.State;
}
}
}
/// <summary>
/// PLC数据读取方法
/// </summary>
/// <param name="block">要读取的块号</param>
/// <param name="start">要读取的起始字</param>
/// <param name="len">要读取的长度最大255超过255则不读取</param>
/// <param name="buff"></param>
/// <returns></returns>
public override bool Read(string block, int start, int len, out object[] buff)
{
lock (this)
{
buff = new object[len];
try
{
if (len > 256)
{
for (int i = 0; i < len; i++)
{
buff[i] = 0;
}
base.State = false;
return false;
}
int maxOneLen = 20; //单次允许读取的最大长度欧姆龙限制为20个字
int count = len / maxOneLen; //要读取的次数
int mod = len % maxOneLen; //剩余的长度
bool flag = true; //保存读取标志
for (int i = 0; i < count; i++)
{
object[] _buff = new object[maxOneLen];
flag = this.ReadByLen(block, start + i * maxOneLen, maxOneLen, out _buff);
if (flag == false)
{
base.State = flag;
return false;
}
for (int k = i * maxOneLen; k < (i + 1) * maxOneLen; k++)
{
buff[k] = _buff[k - i * maxOneLen];
}
}
if (mod > 0)
{
object[] _buff = new object[mod];
flag = this.ReadByLen(block, start + count * maxOneLen, mod, out _buff);
if (flag == false)
{
base.State = flag;
return false;
}
for (int k = count * maxOneLen; k < count * maxOneLen + mod; k++)
{
buff[k] = _buff[k - count * maxOneLen];
}
}
base.State = flag;
return flag;
}
catch (Exception ex)
{
ICSharpCode.Core.LoggingService.Error(String.Format("读取PLCOMRON设备失败-({0})!", ex.Message));
base.State = false;
return false;
}
}
}
/// <summary>
/// 单次读取最长20个字的方法
/// </summary>
/// <param name="block">块号</param>
/// <param name="start">起始字</param>
/// <param name="len">长度最长不超过100</param>
/// <param name="buff">数据缓冲区,存放读取的数据</param>
/// <returns>读取成功返回true读取失败返回false</returns>
private bool ReadByLen(string block, int start, int len, out object[] buff)
{
lock (this)
{
buff = new object[len];
if (!this.Open())
{
return false;
}
int state = len;
int[] _buff = new int[len];
int iblock = Convert.ToInt32(block);
//iblock = iblock + start;
string result = this._serialPortFactory.Read(iblock, start, len, out _buff);
if (result != "00")
{
ICSharpCode.Core.LoggingService.Warn("PLC读取失败" + this.GetErrInfo(result));
this.State = false;
return false;
}
else
{
this.State = true;
}
int iReadLen = len;
if (iReadLen > state)
{
iReadLen = state;
}
for (int i = 0; i < iReadLen; i++)
{
int value = _buff[i];
if (value > ushort.MaxValue)
{
value = ushort.MaxValue - value;
}
buff[i] = value;
}
return true;
}
}
private ushort ToValue(object obj, ushort defaultValue)
{
ushort result = 0;
if (obj != null
&& obj != DBNull.Value
&& ushort.TryParse(obj.ToString(), out result))
{
return result;
}
return defaultValue;
}
/// <summary>
/// PLC数据写入方法
/// </summary>
/// <param name="block">要写入的块号</param>
/// <param name="start">起始字</param>
/// <param name="buff">要写入PLC的数据</param>
/// <returns>写入成功返回true失败返回false</returns>
public override bool Write(int block, int start, object[] buff)
{
lock (this)
{
try
{
if (buff.Length > 256)
{
return false;
}
int len = buff.Length;
int maxOneLen = 25; //单次允许读取的最大长度OMRON限制为25个字
int count = len / maxOneLen; //要读取的次数
int mod = len % maxOneLen; //剩余的长度
bool flag = true; //保存写入标志
for (int i = 0; i < count; i++)
{
object[] _buff = new object[maxOneLen];
for (int k = i * maxOneLen; k < (i + 1) * maxOneLen; k++)
{
_buff[k - i * maxOneLen] = buff[k];
}
flag = this.WriteMax25(block, start + i * maxOneLen, _buff);
if (flag == false)
{
return false;
}
}
if (mod > 0)
{
object[] _buff = new object[mod];
for (int k = count * maxOneLen; k < count * maxOneLen + mod; k++)
{
_buff[k - count * maxOneLen] = buff[k];
}
flag = this.WriteMax25(block, start + count * maxOneLen, _buff);
}
return flag;
}
catch (Exception ex)
{
ICSharpCode.Core.LoggingService.Error(String.Format("写入PLCOMRON设备失败-({0})!", ex.Message));
//Console.WriteLine(ex.Message);
return false;
}
}
}
/// <summary>
/// 单次写入最多25个字至PLC
/// </summary>
/// <param name="block">要写入的块号</param>
/// <param name="start">要写入的起始字</param>
/// <param name="buff">要写入的数据</param>
/// <returns>写入成功返回true失败返回false</returns>
private bool WriteMax25(int block, int start, object[] buff)
{
lock (this)
{
if (!this.Open())
{
return false;
}
int state = buff.Length;
int[] _buff = new int[buff.Length];
for (int i = 0; i < buff.Length; i++)
{
int value = 0;
int.TryParse(buff[i].ToString(), out value);
_buff[i] = value;
}
string result = this._serialPortFactory.Write(block, start, _buff);
if (result != "00")
{
ICSharpCode.Core.LoggingService.Error("PLC【欧姆龙】写入失败" + this.GetErrInfo(result));
return false;
}
return true;
}
}
/// <summary>
/// 关闭PLC设备
/// </summary>
public override void Close()
{
lock (this)
{
try
{
this._serialPortFactory.MainSerialPort.Close();
if (this._serialPortFactory.MainSerialPort.IsOpen)
{
ICSharpCode.Core.LoggingService.Warn("PLC【欧姆龙】关闭失败端口处于打开状态");
}
else
{
this.State = false;
this._isOpen = false;
//Console.WriteLine("关闭成功!");
}
}
catch (Exception ex)
{
ICSharpCode.Core.LoggingService.Error("PLC【欧姆龙】关闭失败" + ex.Message);
}
}
}
#region 根据错误代码返回错误信息
/// <summary>根据错误代码返回错误信息
/// </summary>
/// <param name="errCode">错误码</param>
/// <returns>错误信息</returns>
public string GetErrInfo(string errCode)
{
string result = "未知错误";
switch (errCode)
{
case "00":
result = "正常完成!";
break;
case "01":
result = "在RUN模式下不可执行";
break;
case "02":
result = "在MONITOR模式下不可执行";
break;
case "04":
result = "地址越界";
break;
case "0B":
result = "在PROGRAM模式下不可执行";
break;
case "13":
result = "FCS错误";
break;
case "14":
result = "格式错误";
break;
case "15":
result = "入口号数据错误";
break;
case "16":
result = "命令不支持";
break;
case "18":
result = "帧长度错误";
break;
case "19":
result = "不可执行";
break;
case "23":
result = "用户存储区写保护";
break;
case "A3":
result = "由于数据传送中FCS错误而终止";
break;
case "A4":
result = "由于数据传送中格式错误而终止";
break;
case "A5":
result = "由于数据传送中入口号数据错误而终止";
break;
case "A8":
result = "由于数据传送中帧长错误而终止";
break;
default:
result = "未知错误";
break;
}
return result;
}
#endregion
}
}