295 lines
11 KiB
C#
295 lines
11 KiB
C#
using Common.Attributes;
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using DeviceCommand.Base;
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using Model.Models;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Threading;
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using System.Threading.Tasks;
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namespace DeviceCommand.Devices
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{
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[ACPCommand]
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public class IT6720 : Serial_Port // 直接继承您提供的 Serial_Port 基类
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{
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// 帧格式：同步头 AA + 地址 + 命令字 + 数据[4-25] + 校验和，共 26 字节
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private const byte FrameSyncByte = 0xAA;
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private const int FrameLength = 26;
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private readonly byte _deviceAddress; // 电源地址
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public IT6720(SerialPortConfig config, byte address = 0x00) : base(config)
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{
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_deviceAddress = address;
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}
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#region 核心协议封装（不变）
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/// <summary>
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/// 构建 26 字节的发送帧，并计算校验和
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/// </summary>
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private byte[] BuildFrame(byte command, byte[] dataBytes)
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{
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List<byte> frame = new List<byte> { FrameSyncByte, _deviceAddress, command };
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if (dataBytes != null && dataBytes.Length > 0)
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{
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frame.AddRange(dataBytes);
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}
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// 数据区必须占满 23 字节 (索引 3 到 24)
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while (frame.Count < 25)
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{
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frame.Add(0x00);
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}
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// 计算校验和：前 25 字节之和取低 8 位
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byte checkSum = 0;
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for (int i = 0; i < 25; i++)
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{
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checkSum += frame[i];
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}
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frame.Add(checkSum);
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return frame.ToArray();
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}
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/// <summary>
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/// 检查返回的 26 字节响应帧是否正确
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/// </summary>
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private bool ValidateResponseFrame(byte[] response)
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{
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if (response == null || response.Length != FrameLength) return false;
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if (response[0] != FrameSyncByte) return false;
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if (response[1] != _deviceAddress) return false;
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byte checkSum = 0;
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for (int i = 0; i < 25; i++)
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{
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checkSum += response[i];
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}
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return response[25] == checkSum;
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}
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/// <summary>
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/// 将实际电压/电流值转换成协议要求的整型 (乘以 1000 变成整形)
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/// </summary>
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private int ConvertToProtocolValue(double value)
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{
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return (int)Math.Round(value * 1000);
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}
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/// <summary>
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/// 将协议返回的 4 字节小端序转换为实际数值 (除以 1000.0)
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/// </summary>
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private double Convert4BytesToValue(byte b0, byte b1, byte b2, byte b3)
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{
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uint raw = (uint)(b0 | (b1 << 8) | (b2 << 16) | (b3 << 24));
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return raw / 1000.0;
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}
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/// <summary>
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/// 将协议返回的 2 字节小端序转换为实际数值 (除以 1000.0)
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/// </summary>
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private double Convert2BytesToValue(byte b0, byte b1)
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{
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ushort raw = (ushort)(b0 | (b1 << 8));
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return raw / 1000.0;
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}
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#endregion
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#region 1. 核心二进制收发方法（使用基类新方法）
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/// <summary>
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/// 发送命令帧并读取仪器返回的 26 字节数据帧
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/// </summary>
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private async Task<byte[]> SendAndReadFrameAsync(byte command, byte[] dataBytes, CancellationToken ct = default)
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{
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byte[] sendFrame = BuildFrame(command, dataBytes);
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// 使用基类提供的 WriteBytesAsync 发送二进制数据
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await WriteBytesAsync(sendFrame, ct).ConfigureAwait(false);
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// 使用基类提供的 ReadBytesAsync 读取定长 26 字节二进制数据
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// 注意：这里的 ReadTimeout 由基类统一控制
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return await ReadBytesAsync(FrameLength, ct).ConfigureAwait(false);
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}
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#endregion
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#region 2. 操作模式与输出控制
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/// <summary>
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/// 切换电源控制模式：PC 远程控制 / 面板控制
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/// </summary>
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public virtual async Task 切换远程控制模式(bool 远程控制 = true, CancellationToken ct = default)
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{
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byte[] data = new byte[] { (byte)(远程控制 ? 0x01 : 0x00) };
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byte[] response = await SendAndReadFrameAsync(0x20, data, ct);
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if (!ValidateResponseFrame(response))
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throw new Exception("IT6720 切换控制模式时通讯校验失败。");
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}
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public virtual async Task 切换本地控制模式(CancellationToken ct = default)
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{
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await 切换远程控制模式(false, ct);
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}
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/// <summary>
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/// 开启或关闭电源输出
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/// </summary>
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public virtual async Task 设置输出开关(bool 开启 = true, CancellationToken ct = default)
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{
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byte[] data = new byte[] { (byte)(开启 ? 0x01 : 0x00) };
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byte[] response = await SendAndReadFrameAsync(0x21, data, ct);
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if (!ValidateResponseFrame(response))
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throw new Exception("IT6720 设置输出时通讯校验失败。");
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}
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public virtual async Task<string> 查询输出开关状态(CancellationToken ct = default)
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{
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var (_, _, status) = await 查询实时测量值(ct);
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return (status & 0x01) != 0 ? "ON" : "OFF";
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}
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#endregion
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#region 3. 电压 / 电流设定
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/// <summary>
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/// 设置电源的电压上限
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/// </summary>
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public virtual async Task 设置电压上限(double 电压, CancellationToken ct = default)
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{
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int raw = ConvertToProtocolValue(电压);
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byte[] data = new byte[]
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{
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(byte)(raw & 0xFF), (byte)((raw >> 8) & 0xFF),
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(byte)((raw >> 16) & 0xFF), (byte)((raw >> 24) & 0xFF)
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};
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byte[] response = await SendAndReadFrameAsync(0x22, data, ct);
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if (!ValidateResponseFrame(response))
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throw new Exception("IT6720 设置电压上限时通讯校验失败。");
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}
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/// <summary>
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/// 设置电源的输出电压
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/// </summary>
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public virtual async Task 设置输出电压(double 电压, CancellationToken ct = default)
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{
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int raw = ConvertToProtocolValue(电压);
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byte[] data = new byte[]
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{
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(byte)(raw & 0xFF), (byte)((raw >> 8) & 0xFF),
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(byte)((raw >> 16) & 0xFF), (byte)((raw >> 24) & 0xFF)
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};
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byte[] response = await SendAndReadFrameAsync(0x23, data, ct);
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if (!ValidateResponseFrame(response))
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throw new Exception("IT6720 设置输出电压时通讯校验失败。");
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}
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/// <summary>
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/// 设置电源的输出电流限流值
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/// </summary>
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public virtual async Task 设置输出电流(double 电流, CancellationToken ct = default)
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{
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int raw = ConvertToProtocolValue(电流);
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byte[] data = new byte[]
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{
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(byte)(raw & 0xFF), (byte)((raw >> 8) & 0xFF)
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};
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byte[] response = await SendAndReadFrameAsync(0x24, data, ct);
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if (!ValidateResponseFrame(response))
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throw new Exception("IT6720 设置输出电流时通讯校验失败。");
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}
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#endregion
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#region 4. 读取实时数据与状态（对应 0x26H）
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/// <summary>
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/// 读取电源的实时电流、电压、设定值及电源状态
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/// 返回元组：实际电流(A), 实际电压(V), 状态字节(int)
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/// </summary>
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[Monitorable("IT6720 实时测量数据")]
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public virtual async Task<(double ActualCurrent, double ActualVoltage, int StatusByte)> 查询实时测量值(CancellationToken ct = default)
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{
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byte[] response = await SendAndReadFrameAsync(0x26, new byte[0], ct);
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if (!ValidateResponseFrame(response))
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throw new Exception("IT6720 读取数据时通讯校验失败。");
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double actualCurrent = Convert2BytesToValue(response[4], response[5]);
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double actualVoltage = Convert4BytesToValue(response[6], response[7], response[8], response[9]);
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int statusByte = response[10];
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return (actualCurrent, actualVoltage, statusByte);
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}
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[Monitorable("IT6720 实际电压")]
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public virtual async Task<string> 查询实际电压(CancellationToken ct = default)
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{
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var (_, voltage, _) = await 查询实时测量值(ct);
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return voltage.ToString("F2", CultureInfo.InvariantCulture);
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}
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[Monitorable("IT6720 实际电流")]
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public virtual async Task<string> 查询实际电流(CancellationToken ct = default)
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{
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var (current, _, _) = await 查询实时测量值(ct);
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return current.ToString("F3", CultureInfo.InvariantCulture);
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}
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/// <summary>
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/// 读取状态字，判断是否处于恒压 (CV) 模式或恒流 (CC) 模式
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/// 状态字节位详解：位 2,3 = 1(CV), 2(CC)
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/// </summary>
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public virtual async Task<string> 查询输出模式(CancellationToken ct = default)
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{
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var (_, _, status) = await 查询实时测量值(ct);
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int mode = (status >> 2) & 0x03;
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return mode switch
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{
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1 => "CV",
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2 => "CC",
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_ => "UNKNOWN"
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};
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}
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#endregion
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#region 5. 读取设备信息（命令字 31H）
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/// <summary>
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/// 读取电源的序列号、型号及软件版本
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/// </summary>
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public virtual async Task<string> 查询设备信息(CancellationToken ct = default)
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{
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byte[] response = await SendAndReadFrameAsync(0x31, new byte[0], ct);
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if (!ValidateResponseFrame(response)) return "Invalid Response";
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string model = System.Text.Encoding.ASCII.GetString(response, 4, 5).Trim('\0');
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string swVersion = $"{response[9]:X2}.{response[10]:X2}";
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string serialNum = System.Text.Encoding.ASCII.GetString(response, 11, 10).Trim('\0');
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return $"Model:{model}, SW:{swVersion}, SN:{serialNum}";
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}
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#endregion
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#region 6. 扩展系统命令（兼容接口）
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/// <summary>
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/// 基类自带的超时和清空缓冲区已经处理了大部分错误。
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/// 如需在面板显示具体错误，需通过状态位自行判断或查看面板 ERROR 灯。
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/// </summary>
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public virtual async Task<string> 查询错误信息(CancellationToken ct = default)
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{
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return "IT6720 无标准 SCPI 错误信息查询，请检查前面板 ERROR 指示灯。";
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}
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#endregion
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}
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} |