74 lines
2.5 KiB
C#
74 lines
2.5 KiB
C#
using MCProtocol;
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namespace Seyounth.Hyosung.Core.Plc;
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public class McPlc(string host, int port, Mitsubishi.McFrame type)
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{
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private readonly Mitsubishi.McProtocolTcp _mc = new();
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public async Task<int> ConnectAsync()
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{
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_mc.HostName = host;
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_mc.PortNumber = port;
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_mc.CommandFrame = type;
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return await _mc.Open();
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}
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public Task<int> CloseAsync()
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{
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var code = _mc.Close();
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_mc.Dispose();
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return Task.FromResult(code);
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}
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public async Task<byte[]> ReadBytesAsync(int address, int length)
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{
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var code = await _mc.ReadDeviceBlock(Mitsubishi.PlcDeviceType.D, address, length / 2);
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return code;
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}
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public async Task<short[]> ReadShortsAsync(int address, int length)
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{
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var code = await _mc.ReadDeviceBlock(Mitsubishi.PlcDeviceType.D, address, length);
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if (code is null || code.Length < length * 2)
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throw new Exception("read short error");
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var shorts = new short[length];
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Buffer.BlockCopy(code, 0, shorts, 0, code.Length);
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return shorts;
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}
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public async Task WriteShortsAsync(int address, params short[] values)
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{
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var code = await _mc.WriteDeviceBlock(Mitsubishi.PlcDeviceType.D, address, values.Length,
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values.SelectMany(BitConverter.GetBytes).ToArray());
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}
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public async Task WriteBytesAsync(int address, byte[] data)
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{
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var code = await _mc.WriteDeviceBlock(Mitsubishi.PlcDeviceType.D, address, data.Length / 2, data);
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}
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public async Task<string> ReadStringAsync(int address)
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{
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const int fixedLength = 20;
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// 调用 ReadBytesAsync 方法读取字节数据，固定长度为 10
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byte[] bytes = await ReadBytesAsync(address, fixedLength);
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// 将字节数组使用 ASCII 编码转换为字符串
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string result = System.Text.Encoding.ASCII.GetString(bytes);
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// 去除字符串末尾可能存在的空字符
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return result.TrimEnd('\0');
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}
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public async Task WriteStringAsync(int address, string value)
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{
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const int fixedLength = 10;
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// 将字符串使用 ASCII 编码转换为字节数组
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byte[] bytes = System.Text.Encoding.ASCII.GetBytes(value);
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// 确保字节数组长度为 10
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byte[] fixedLengthBytes = new byte[fixedLength];
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Array.Copy(bytes, fixedLengthBytes, Math.Min(bytes.Length, fixedLength));
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// 调用 WriteBytesAsync 方法写入字节数组
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await WriteBytesAsync(address, fixedLengthBytes);
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}
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} |