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小版本：

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返回URL链接，
后面就不需要了，直接客户端查看数据
This commit is contained in:
Tyrone CT
2025-12-02 14:23:42 +08:00
parent 010272aa0b
commit 4b98b61f10
5 changed files with 313 additions and 24 deletions
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291
FATrace.OEMApp/Services/PLCDataService.cs Normal file
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using FATrace.Com;
using HslCommunication;
using HslCommunication.Profinet.Keyence;
using NLog;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace FATrace.OEMApp.Services
{
public class PLCDataService
{
/// <summary>
/// 日志
/// </summary>
private Logger Logger { get; set; } = LogManager.GetCurrentClassLogger();
public PLCDataService()
{
PLCLinkInitial();
StartPlcScan();
}
/// <summary>
/// 扫码事件
/// </summary>
public event EventHandler<string> ScanCodeEventHandler;
/// <summary>
/// PLC连接状态事件
/// </summary>
public event EventHandler<string> PlcConnectedEventHandler;
/// <summary>
/// 基恩士通信组件
/// </summary>
private KeyenceMcNet KeyencePlcMcNet { get; set; } = null;
private bool _PlcConnected;
/// <summary>
/// PLC连接状态
/// </summary>
public bool PlcConnected
{
get { return _PlcConnected; }
set
{
if (_PlcConnected != value)
{
if (value)
{
PlcConnectedEventHandler.Invoke(this, "OK");
}
else
{
PlcConnectedEventHandler.Invoke(this, "NG");
}
_PlcConnected = value;
}
}
}
// 扫描控制
private CancellationTokenSource? _plcScanCts;
private Task? _plcScanTask;
private volatile bool _isScanning = false;
public bool IsScanning => _isScanning;
private bool _disposed = false;
/// <summary>
/// PLC通信初始化
/// </summary>
/// <param name="PLCIp"></param>
/// <param name="Port"></param>
private void PLCLinkInitial()
{
try
{
// 读取 PLC 配置（大小写敏感，采用公共 ConfigHelper 并提供默认值）
string PLCIP = ConfigHelper.GetStringOrDefault("PLCIP", "192.0.1.10");
int Port = ConfigHelper.GetIntOrDefault("PLCPort", 5000);
//PLC通信的连接
KeyencePlcMcNet = new KeyenceMcNet();
KeyencePlcMcNet.IpAddress = PLCIP;
KeyencePlcMcNet.Port = Port;
KeyencePlcMcNet.ConnectClose();
KeyencePlcMcNet.ConnectTimeOut = 3000; // 连接3秒超时
OperateResult connect = KeyencePlcMcNet.ConnectServer();
if (connect.IsSuccess)//初始连接状态的显示判断
{
Console.WriteLine($"PLC-连接 OK");
PlcConnected = true;
}
else
{
MessageBox.Show(connect.Message + Environment.NewLine + "ErrorCode: " + connect.ErrorCode);
PlcConnected = false;
}
}
catch (Exception ex)
{
Logger.Error(String.Format("ErrSource : {0} ErrMsg : {1}", ex.StackTrace.ToString(), ex.Message.ToString()));
//insertLogToDBDelegate.BeginInvoke(1, "UpdateUIMethod异常", ex.Message.ToString() + ex.StackTrace.Substring(ex.StackTrace.Length - 40, 40), null, null);
PlcConnected = false;
}
}
/// <summary>
/// 启动PLC扫描。若已在扫描则忽略重复启动。
/// </summary>
/// <param name="scanPeriod">扫描周期，若为 null 则读取 App.config 的 PLCScan（毫秒），默认600ms</param>
/// <param name="externalToken">可选：外部取消令牌，用于联动取消</param>
public void StartPlcScan(TimeSpan? scanPeriod = null, CancellationToken externalToken = default)
{
if (_isScanning) return;
var period = scanPeriod ?? ConfigHelper.GetTimeSpanOrDefault("PLCScan", TimeSpan.FromMilliseconds(600));
_plcScanCts = CancellationTokenSource.CreateLinkedTokenSource(externalToken);
var token = _plcScanCts.Token;
_isScanning = true;
_plcScanTask = Task.Run(() => PlcScanLoopAsync(period, token), token);
}
/// <summary>
/// 停止PLC扫描，等待后台任务结束。
/// </summary>
public async Task StopPlcScanAsync()
{
try
{
if (_plcScanCts != null)
{
_plcScanCts.Cancel();
}
if (_plcScanTask != null)
{
try { await _plcScanTask.ConfigureAwait(false); } catch { /* ignore */ }
}
}
finally
{
_isScanning = false;
_plcScanTask = null;
_plcScanCts?.Dispose();
_plcScanCts = null;
}
}
/// <summary>
/// 扫描循环：按周期轮询PLC寄存器并更新模型。
/// - 读取配置项 Addr_WeightPhotoEnable（默认 M100）为布尔量
/// - 读失败时尝试重连一次
/// </summary>
private async Task PlcScanLoopAsync(TimeSpan period, CancellationToken token)
{
string addrWeight = ConfigHelper.GetStringOrDefault("Addr_WeightPhotoEnable", "M100");
bool? lastWeight = null;
while (!token.IsCancellationRequested)
{
try
{
if (KeyencePlcMcNet == null)
{
PLCLinkInitial();
}
}
catch (OperationCanceledException)
{
break;
}
catch (Exception ex)
{
Logger.Error($"PLC 扫描异常: {ex}");
}
finally
{
try
{
await Task.Delay(period, token).ConfigureAwait(false);
}
catch (OperationCanceledException)
{
// 不允许从 finally 中 break/return，
// 这里吞掉异常，循环将在下一次 while 判断时依据 token 自动退出
}
}
}
_isScanning = false;
}
/// <summary>
/// 尝试重连 PLC（快速一次）
/// </summary>
private async Task TryReconnectAsync(CancellationToken token)
{
try
{
if (KeyencePlcMcNet == null) { PLCLinkInitial(); return; }
KeyencePlcMcNet.ConnectClose();
await Task.Delay(100, token).ConfigureAwait(false);
KeyencePlcMcNet.ConnectTimeOut = 3000;
var ret = KeyencePlcMcNet.ConnectServer();
if (!ret.IsSuccess)
{
Logger.Warn($"PLC重连失败: {ret.Message} (Code: {ret.ErrorCode})");
PlcConnected = false;
}
else { PlcConnected = true; }
}
catch (Exception ex)
{
Logger.Error($"PLC重连异常: {ex.Message}");
PlcConnected = false;
}
}
/// <summary>
/// 释放资源，确保扫描停止并断开PLC连接。
/// </summary>
public void Dispose()
{
if (_disposed) return;
_disposed = true;
try
{
// 停止扫描
try { StopPlcScanAsync().GetAwaiter().GetResult(); } catch { }
// 解除事件订阅（当前未订阅自定义事件，保留占位以便后续扩展）
// try { /* no event to unsubscribe */ } catch { }
// 关闭PLC连接
try { KeyencePlcMcNet?.ConnectClose(); } catch { }
}
finally
{
KeyencePlcMcNet = null;
}
}
/// <summary>
/// 把字符串对调
/// </summary>
public string RevData(string Code)
{
// 需求：PLC 字符串按“字”(2字节)进行高低字节对调，导致 ABCDEF -> BADCFE
// 纠正方式：按两个字符一组交换顺序，奇数长度保留最后一个字符
if (string.IsNullOrEmpty(Code)) return string.Empty;
// 去掉读取中可能包含的 '\0' 空字符
var src = Code.Replace("\0", string.Empty);
var sb = new System.Text.StringBuilder(src.Length);
for (int i = 0; i < src.Length; i += 2)
{
if (i + 1 < src.Length)
{
sb.Append(src[i + 1]);
sb.Append(src[i]);
}
else
{
// 奇数长度，最后一个字符原样保留
//sb.Append((char)0x0);
sb.Append('\0');
sb.Append(src[i]);
}
}
return sb.ToString();
}
}
}