瑕佷笌PLC杩涜閫氫俊锛屾偍鍙互浣跨敤C#缂栫▼璇█鏉ュ疄鐜般€備互涓嬫槸涓€浜涘父鐢ㄧ殑鏂规硶锛?/p>

1. 浣跨敤涓插彛閫氫俊锛歅LC閫氬父閫氳繃涓插彛涓庤绠楁満杩涜閫氫俊銆傛偍鍙互浣跨敤C#鐨凷erialPort绫绘潵涓嶱LC杩涜閫氫俊銆傞鍏堬紝鎮ㄩ渶瑕佹墦寮€涓插彛骞惰缃浉搴旂殑鍙傛暟锛屽娉㈢壒鐜囥€佹暟鎹綅銆佸仠姝綅鍜屾牎楠屼綅銆傜劧鍚庯紝鎮ㄥ彲浠ヤ娇鐢⊿erialPort绫荤殑Read鍜學rite鏂规硶鏉ヨ鍙栧拰鍐欏叆鏁版嵁銆?/li>

绀轰緥浠ｇ爜锛?/p>

using System.IO.Ports;

SerialPort port = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One);
port.Open();
port.Write("浣犵殑鍛戒护"); // 鍚慞LC鍙戦€佸懡浠?/span>
string response = port.ReadLine(); // 浠嶱LC璇诲彇鍝嶅簲
port.Close();

2. 浣跨敤浠ュお缃戦€氫俊锛氭湁浜汸LC鏀寔浠ュお缃戦€氫俊銆傛偍鍙互浣跨敤C#鐨凷ocket绫绘垨鑰呯涓夋柟搴撳Modbus.NET鏉ヤ笌PLC杩涜閫氫俊銆傞鍏堬紝鎮ㄩ渶瑕佸垱寤轰竴涓猄ocket杩炴帴鍒癙LC鐨処P鍦板潃鍜岀鍙ｅ彿銆傜劧鍚庯紝鎮ㄥ彲浠ヤ娇鐢⊿ocket绫荤殑Send鍜孯eceive鏂规硶鏉ュ彂閫佸拰鎺ユ敹鏁版嵁銆?/li>

绀轰緥浠ｇ爜锛?/p>

using System.Net;
using System.Net.Sockets;

IPAddress ipAddress = IPAddress.Parse("PLC鐨処P鍦板潃");
int port = 502;
TcpClient client = new TcpClient();
client.Connect(ipAddress, port);
NetworkStream stream = client.GetStream();

byte[] command = { 0x01, 0x02, 0x03 }; // 鍙戦€佺殑鍛戒护
stream.Write(command, 0, command.Length);

byte[] response = new byte[256]; // 鎺ユ敹鐨勫搷搴?/span>
int bytesRead = stream.Read(response, 0, response.Length);

stream.Close();
client.Close();

杩欎簺浠ｇ爜鍙槸绠€鍗曠殑绀轰緥锛屽叿浣撶殑閫氫俊鍗忚鍜屽懡浠ゆ牸寮忛渶瑕佹牴鎹偍浣跨敤鐨凱LC鍨嬪彿鍜岄€氫俊鍗忚鏉ョ‘瀹氥€傚鏋滄偍浣跨敤鐨勬槸鐗瑰畾鐨凱LC鍝佺墝鍜屽瀷鍙凤紝鍙互鏌ラ槄鍏剁浉鍏虫枃妗ｄ互鑾峰彇鏇磋缁嗙殑閫氫俊鍗忚鍜屽懡浠ゆ牸寮忋€?/p>