377 lines
14 KiB
C#
377 lines
14 KiB
C#
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// 统一引入所有必要命名空间
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using Microsoft.Extensions.Options;
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using Quartz;
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using RIZO.Common;
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using S7.Net;
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using System;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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namespace RIZO.Admin.WebApi.PLC
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{
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// 移除嵌套类，直接定义顶级PlcService类并实现IDisposable
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public class PlcService : IDisposable
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{
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// 标记是否已释放资源，避免重复释放
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private bool _disposed = false;
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// PLC配置参数（从配置文件注入）
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private readonly List<PlcConfig> _plcConfigs;
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private readonly GlobalPlcConfig _globalConfig;
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/// <summary>
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/// 构造函数（依赖注入获取PLC配置）
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/// </summary>
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/// <param name="plcConfigs">所有PLC的连接配置</param>
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/// <param name="globalConfig">PLC全局超时配置</param>
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public PlcService(IOptions<List<PlcConfig>> plcConfigs, IOptions<GlobalPlcConfig> globalConfig)
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{
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_plcConfigs = plcConfigs.Value;
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_globalConfig = globalConfig.Value;
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}
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/// <summary>
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/// 测试单个PLC的连接、读、写功能
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/// </summary>
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/// <param name="config">单个PLC的配置参数</param>
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/// <returns>测试结果</returns>
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public async Task<PlcTestResult> TestSinglePlcAsync(PlcConfig config)
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{
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var result = new PlcTestResult
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{
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PlcName = config.PlcName,
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Ip = config.Ip
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};
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Plc plc = null;
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try
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{
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// 1. 初始化PLC连接对象
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plc = new Plc(CpuType.S71500, config.Ip, config.Rack, config.Slot);
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plc.ReadTimeout = _globalConfig.ReadWriteTimeout;
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plc.WriteTimeout = _globalConfig.ReadWriteTimeout;
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// 异步打开连接（S7.Net无原生异步，用Task.Run包装）
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await Task.Run(() => plc.Open());
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// 检查连接状态
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if (plc.IsConnected)
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{
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result.ConnectSuccess = true;
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result.ConnectMessage = "连接成功";
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}
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else
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{
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result.ConnectSuccess = false;
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result.ConnectMessage = "连接失败（PLC未返回连接状态）";
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return result;
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}
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// 2. 读取PLC数据
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try
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{
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var readValue = await Task.Run(() => plc.Read(config.TestReadAddress));
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result.ReadSuccess = true;
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result.ReadValue = FormatValue(readValue);
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result.ReadMessage = "读取成功";
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}
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catch (Exception ex)
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{
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result.ReadSuccess = false;
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result.ReadMessage = $"读取失败：{ex.Message}";
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}
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// 3. 写入PLC数据
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try
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{
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bool writeOk = await Task.Run(() => WritePlcValue(plc, config.TestWriteAddress, config.TestWriteValue));
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result.WriteSuccess = writeOk;
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result.WriteMessage = writeOk ? "写入成功" : "写入失败（值类型与地址不匹配）";
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}
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catch (Exception ex)
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{
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result.WriteSuccess = false;
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result.WriteMessage = $"写入失败：{ex.Message}";
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}
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}
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catch (Exception ex)
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{
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result.ConnectSuccess = false;
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result.ConnectMessage = $"连接异常：{ex.Message}";
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}
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finally
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{
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// 确保PLC连接最终被释放
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if (plc != null)
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{
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if (plc.IsConnected)
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{
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plc.Close();
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}
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Dispose(); // 释放Plc对象资源
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}
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}
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return result;
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}
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/// <summary>
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/// 批量测试配置文件中所有PLC的读写功能
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/// </summary>
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/// <returns>所有PLC的测试结果列表</returns>
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/// <exception cref="Exception">未配置PLC参数时抛出</exception>
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public async Task<List<PlcTestResult>> BatchTestAllPlcAsync()
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{
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if (_plcConfigs == null || _plcConfigs.Count == 0)
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{
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throw new Exception("未从配置文件加载到任何PLC参数，请检查PlcConfigs配置");
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}
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// 并行测试所有PLC，提高效率
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var testTasks = _plcConfigs.Select(config => TestSinglePlcAsync(config)).ToList();
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var results = await Task.WhenAll(testTasks);
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return results.ToList();
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}
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/// <summary>
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/// 单独读取指定PLC的某个地址数据
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/// </summary>
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/// <param name="ip">PLC的IP地址</param>
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/// <param name="rack">机架号</param>
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/// <param name="slot">槽位号</param>
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/// <param name="address">读取地址（如DB1.DBD0）</param>
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/// <returns>读取结果（成功状态、值、消息）</returns>
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public async Task<(bool Success, string Value, string Message)> ReadPlcDataAsync(string ip, short rack, short slot, string address)
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{
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Plc plc = null;
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try
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{
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plc = new Plc(CpuType.S71500, ip, rack, slot);
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plc.ReadTimeout = _globalConfig.ReadWriteTimeout;
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await Task.Run(() => plc.Open());
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if (!plc.IsConnected)
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{
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return (false, "", "PLC连接失败，请检查IP/机架号/槽位号是否正确");
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}
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var value = await Task.Run(() => plc.Read(address));
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// 示例：读取DB1.DBX0.0和DB1.DBX0.1
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//var address1 = "DB1010.DBX0.0"; // 第一个位地址
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//var address2 = "DB1010.DBX0.1"; // 第二个位地址
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var address1 = "DB1010.DBW2"; // 第二个位地址
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var address2 = "DB1010.DBW4"; // 第二个位地址
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// 读取DBX0.0
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var value1 = await Task.Run(() => plc.Read(address1));
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bool writeOk = await Task.Run(() => WritePlcValue(plc, address1, "56"));
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// 读取DBX0.1
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var value2 = await Task.Run(() => plc.Read(address2));
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return (true, FormatValue(value), "读取成功");
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}
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catch (Exception ex)
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{
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return (false, "", $"读取失败：{ex.Message}");
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}
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finally
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{
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// 释放PLC连接
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if (plc != null)
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{
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if (plc.IsConnected) plc.Close();
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Dispose();
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}
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}
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}
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/// <summary>
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/// 单独写入数据到指定PLC的某个地址
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/// </summary>
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/// <param name="ip">PLC的IP地址</param>
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/// <param name="rack">机架号</param>
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/// <param name="slot">槽位号</param>
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/// <param name="address">写入地址（如DB1.DBD0）</param>
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/// <param name="valueStr">写入的值（字符串格式）</param>
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/// <returns>写入结果（成功状态、消息）</returns>
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public async Task<(bool Success, string Message)> WritePlcDataAsync(string ip, short rack, short slot, string address, string valueStr)
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{
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Plc plc = null;
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try
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{
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plc = new Plc(CpuType.S71500, ip, rack, slot);
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plc.WriteTimeout = _globalConfig.ReadWriteTimeout;
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await Task.Run(() => plc.Open());
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if (!plc.IsConnected)
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{
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return (false, "PLC连接失败，请检查IP/机架号/槽位号是否正确");
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}
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bool writeOk = await Task.Run(() => WritePlcValue(plc, address, valueStr));
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return (writeOk, writeOk ? "写入成功" : "写入失败（值类型与地址不匹配）");
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}
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catch (Exception ex)
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{
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return (false, $"写入失败：{ex.Message}");
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}
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finally
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{
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// 释放PLC连接
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if (plc != null)
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{
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if (plc.IsConnected) plc.Close();
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Dispose();
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}
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}
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}
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/// <summary>
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/// 格式化PLC读取的值，转为友好的字符串
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/// </summary>
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/// <param name="value">PLC读取的原始值</param>
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/// <returns>格式化后的字符串</returns>
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private string FormatValue(object value)
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{
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if (value == null) return "空值";
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return value switch
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{
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float f => f.ToString("0.000"), // 浮点数保留3位小数
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short s => s.ToString(), // 16位整数
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byte b => b.ToString(), // 8位整数
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bool b => b.ToString(), // 布尔值
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int i => i.ToString(), // 32位整数
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uint ui => ui.ToString(), // 无符号32位整数
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_ => value.ToString() // 其他类型直接转字符串
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};
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}
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/// <summary>
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/// 根据地址类型转换值并写入PLC
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/// </summary>
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/// <param name="plc">PLC连接对象</param>
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/// <param name="address">写入地址</param>
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/// <param name="valueStr">写入的值（字符串）</param>
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/// <returns>是否写入成功</returns>
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private bool WritePlcValue(Plc plc, string address, string valueStr)
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{
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// 双字（DBD/DD）：浮点数或32位整数
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if (address.Contains("DBD") || address.Contains("DD"))
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{
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if (float.TryParse(valueStr, out float f))
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{
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plc.Write(address, f);
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return true;
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}
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else if (int.TryParse(valueStr, out int i))
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{
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plc.Write(address, i);
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return true;
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}
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}
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// 字（DBW/DW）：16位整数
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else if (address.Contains("DBW") || address.Contains("DW"))
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{
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if (short.TryParse(valueStr, out short s))
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{
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plc.Write(address, s);
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return true;
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}
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}
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// 字节（DBB/DB）：8位整数
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else if (address.Contains("DBB") || address.Contains("DB"))
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{
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if (byte.TryParse(valueStr, out byte b))
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{
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plc.Write(address, b);
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return true;
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}
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}
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// 位（DBX）：布尔值（兼容0/1输入）
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else if (address.Contains("DBX"))
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{
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if (bool.TryParse(valueStr, out bool bl))
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{
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plc.Write(address, bl);
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return true;
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}
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else if (valueStr == "0")
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{
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plc.Write(address, false);
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return true;
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}
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else if (valueStr == "1")
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{
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plc.Write(address, true);
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return true;
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}
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}
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// 不匹配的类型
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return false;
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}
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/// <summary>
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/// 带超时的PLC连接测试
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/// </summary>
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public async Task<PlcTestResult> TestSinglePlcAsync(PlcConfig config, CancellationToken cancellationToken)
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{
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// 替换为实际的PLC连接逻辑（如S7NetPlus）
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// 示例：
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// using var plc = new S7Client();
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// var result = plc.ConnectTo(config.Ip, config.Rack, config.Slot);
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// return new PlcTestResult { ConnectSuccess = result == 0, ConnectMessage = result == 0 ? "成功" : "失败" };
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await Task.Delay(100, cancellationToken);
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return new PlcTestResult { ConnectSuccess = true, ConnectMessage = "连接正常" };
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}
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/// <summary>
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/// 读取PLC数据
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/// </summary>
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public async Task<(bool success, object value, string message)> ReadPlcDataAsync(string ip, int rack, int slot, string address)
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{
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// 替换为实际的PLC读取逻辑
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await Task.Delay(50);
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return (true, DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff"), "读取成功");
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}
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/// <summary>
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|||
|
|
/// 实现IDisposable接口，释放资源
|
|||
|
|
/// </summary>
|
|||
|
|
public void Dispose()
|
|||
|
|
{
|
|||
|
|
Dispose(true);
|
|||
|
|
GC.SuppressFinalize(this); // 通知GC无需调用终结器
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// 实际释放资源的逻辑（区分托管/非托管资源）
|
|||
|
|
/// </summary>
|
|||
|
|
/// <param name="disposing">是否释放托管资源</param>
|
|||
|
|
protected virtual void Dispose(bool disposing)
|
|||
|
|
{
|
|||
|
|
if (_disposed) return; // 避免重复释放
|
|||
|
|
|
|||
|
|
// 释放托管资源（此处无长期持有的PLC连接，若有可在此处理）
|
|||
|
|
if (disposing)
|
|||
|
|
{
|
|||
|
|
// 示例：若有全局PLC连接对象，可在此释放
|
|||
|
|
// if (_globalPlc != null) _globalPlc.Dispose();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// 标记为已释放
|
|||
|
|
_disposed = true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/// <summary>
|
|||
|
|
/// 终结器（防忘记手动Dispose）
|
|||
|
|
/// </summary>
|
|||
|
|
~PlcService()
|
|||
|
|
{
|
|||
|
|
Dispose(false);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|