NewLife.Siemens 西门子PLC

using NewLife.Siemens.Models;
using NewLife.Siemens.Protocols;

// 创建客户端（CPU类型、IP地址、端口、机架、插槽）
var client = new S7Client(CpuType.S71200, "192.168.1.100", 102, rack: 0, slot: 0);

// 建立连接（完成 TPKT/COTP/S7 三层握手）
await client.OpenAsync();

// 读取字节数据（DB1 第0字节起读10个字节）
var address = new PLCAddress("DB1.DBB0");
var data = client.ReadBytes(address, 10);
Console.WriteLine(data.ToHex());

// 读取一个 Word（2字节，DB1.DBW20）
var wordAddr = new PLCAddress("DB1.DBW20");
var wordData = client.ReadBytes(wordAddr, 2);
var wordValue = (ushort)((wordData[0] << 8) | wordData[1]);  // S7大端转换

// 写入字节数据
var writeAddr = new PLCAddress("DB1.DBW20");
client.WriteBytes(writeAddr, new byte[] { 0x00, 0x64 });  // 写入100（大端）

// 读取标志区（M0.0 起读1字节）
var mAddr = new PLCAddress("MB0");
var flags = client.ReadBytes(mAddr, 1);

// 关闭连接
client.Close();

using NewLife.IoT.Drivers;
using NewLife.IoT.ThingModels;
using NewLife.Siemens.Drivers;
using NewLife.Siemens.Models;

// 实例化驱动
var driver = new SiemensS7Driver();

// 配置参数
var param = new SiemensParameter
{
    Address = "192.168.1.100:102",
    CpuType = CpuType.S71200,
    Rack = 0,
    Slot = 0
};

// 打开节点
var node = driver.Open(device, param);

// 定义点位并读取
var points = new IPoint[]
{
    new PointModel { Name = "温度", Address = "DB1.DBW0" },
    new PointModel { Name = "压力", Address = "DB1.DBD4" },
    new PointModel { Name = "运行标志", Address = "M0.0" },
};

var result = driver.Read(node, points);
Console.WriteLine($"温度={result["温度"]}, 压力={result["压力"]}");

// 泛型读取（自动大端→小端转换）
var temp = client.Read<Int16>("DB1.DBW0");          // 读 INT
var pressure = client.Read<Single>("DB1.DBD4");     // 读 REAL
var flag = client.Read<Boolean>("M0.0");            // 读 BOOL 位

// 读字符串（STRING 含2字节头）
var name = client.ReadString("DB1.STRING0.60");

// 泛型写入
client.Write("DB1.DBW0", (Int16)150);
client.Write("M0.0", true);

// 读取数组（连续变量）
var temps = client.ReadArray<Int16>("DB1.DBW0", 10);  // 读10个 INT

using NewLife.Siemens.Messages;

// 构造多个变量描述
var items = new List<DataItem>
{
    DataItem.FromAddress("DB1.DBW0",  VarType.Int),
    DataItem.FromAddress("DB1.DBD4",  VarType.Real),
    DataItem.FromAddress("M0.0",      VarType.Bit),
};

// 一次 PDU 批量读取（超限自动拆分）
client.ReadMultipleVars(items);
Console.WriteLine($"温度={items[0].Value}, 压力={items[1].Value}, 运行={items[2].Value}");

// 批量写入
items[0].Value = (Int16)200;
client.Write(items.ToArray());

// 读取 CPU 信息
var info = await client.ReadCpuInfoAsync();
Console.WriteLine($"型号={info.ArticleNumber}, 序列号={info.SerialNumber}");

// 读取 CPU 运行状态（Run / Stop / Halt）
var status = await client.ReadCpuStatusAsync();
Console.WriteLine($"CPU状态={status}");

// 读取 PLC 时钟
var plcTime = await client.ReadClockAsync();
Console.WriteLine($"PLC时间={plcTime:yyyy-MM-dd HH:mm:ss}");

// 同步 PLC 时钟为当前系统时间
await client.WriteClockAsync(DateTime.Now);