72 lines
2.7 KiB
C#
72 lines
2.7 KiB
C#
using System;
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namespace Modbus.Net.Siemens
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{
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/// <summary>
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/// 西门子Tcp协议扩展
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/// </summary>
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public class SiemensTcpProtocolLinkerBytesExtend : IProtocolLinkerBytesExtend
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{
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/// <summary>
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/// 协议扩展，协议内容发送前调用
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/// </summary>
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/// <param name="content">扩展前的原始协议内容</param>
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/// <returns>扩展后的协议内容</returns>
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public byte[] BytesExtend(byte[] content)
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{
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Array.Copy(new byte[] {0x03, 0x00, 0x00, 0x00, 0x02, 0xf0, 0x80}, 0, content, 0, 7);
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Array.Copy(BigEndianValueHelper.Instance.GetBytes((ushort) content.Length), 0, content, 2, 2);
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return content;
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}
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/// <summary>
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/// 协议收缩，协议内容接收后调用
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/// </summary>
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/// <param name="content">收缩前的完整协议内容</param>
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/// <returns>收缩后的协议内容</returns>
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public byte[] BytesDecact(byte[] content)
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{
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var newContent = new byte[content.Length - 7];
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Array.Copy(content, 7, newContent, 0, newContent.Length);
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return newContent;
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}
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}
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/// <summary>
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/// 西门子Ppi协议扩展
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/// </summary>
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public class SiemensPpiProtocolLinkerBytesExtend : IProtocolLinkerBytesExtend
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{
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/// <summary>
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/// 协议扩展，协议内容发送前调用
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/// </summary>
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/// <param name="content">扩展前的原始协议内容</param>
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/// <returns>扩展后的协议内容</returns>
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public byte[] BytesExtend(byte[] content)
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{
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var newContent = new byte[content.Length + 2];
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Array.Copy(content, 0, newContent, 0, content.Length);
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Array.Copy(new byte[] {0x68, (byte) (content.Length - 4), (byte) (content.Length - 4), 0x68}, 0, newContent,
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0, 4);
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var check = 0;
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for (var i = 4; i < newContent.Length - 2; i++)
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check += newContent[i];
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check = check % 256;
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newContent[newContent.Length - 2] = (byte) check;
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newContent[newContent.Length - 1] = 0x16;
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return newContent;
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}
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/// <summary>
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/// 协议收缩，协议内容接收后调用
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/// </summary>
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/// <param name="content">收缩前的完整协议内容</param>
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/// <returns>收缩后的协议内容</returns>
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public byte[] BytesDecact(byte[] content)
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{
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var newContent = new byte[content.Length - 9];
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Array.Copy(content, 7, newContent, 0, newContent.Length);
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return newContent;
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}
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}
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} |