上位机通常会与PLC进行数据通讯在通讯时一般使用16进制与ACS2码进行发送,所以工具类中提供4个方法进行解析数据。
对TCP首发数据提供4个方法
1.将字符串集合转换为字节数组,集合为数字(十进制)
2.将字符串集合转换为字节数组,集合全为字母
3.将字符串指定区域的转换为ACS2,其他区域为数字
4.将字节数组的指定区域转换为字符串
使用方法,全部复制粘贴,创建对象即可使用
public class TCPsock
{
/// <summary>
/// 将字符串集合解析为字节数组,用于TCP的发送,字符串应为全部数字
/// </summary>
/// <param name="data">输入的字符串集合,全部是数字</param>
public byte[] TCPSendInt16(List<string> data)
{
int i = 0;
byte[] sendByetcenter = null, sendByetcenter1 = System.BitConverter.GetBytes(Int16.Parse(Convert.ToString(data[0])));
Array.Reverse(sendByetcenter1);
foreach (var item in data)
{
if (i == 0) {
i++; continue; }
sendByetcenter = null;
sendByetcenter = System.BitConverter.GetBytes(Int16.Parse(Convert.ToString(item)));
Array.Reverse(sendByetcenter);
sendByetcenter1 = sendByetcenter1.Concat(sendByetcenter).ToArray();
}
return sendByetcenter1;
}
/// <summary>
/// 将字符串集合解析为ACS2的形式,返回字节数组
/// </summary>
/// <param name="data">字符串集合</param>
public byte[] TCPSendACS(List<string> data)
{
byte[] sendByetcenter = System.Text.Encoding.ASCII.GetBytes(data[0]), byteArray = null;
int i = 0;
foreach (var item in data)
{
if (i == 0) {
i++; continue; }
byteArray = System.Text.Encoding.ASCII.GetBytes(item);
sendByetcenter = sendByetcenter.Concat(byteArray).ToArray();
}
return sendByetcenter;
}
/// <summary>
/// 将指定区域的集合转换为ACS2,其他转换为数字16进制。
/// </summary>
/// <param name="data">输入集合</param>
/// <param name="begin">集合ACS区域的初始索引</param>
/// <param name="end">集合ACS区域的最后索引</param>
public byte[] TCPSendInt16_ACS(List<string> data, int begin, int end)
{
byte[] sendByetcenter = null, sendByetcenter1 = null;
if (begin == 0)
{
sendByetcenter1 = System.Text.Encoding.ASCII.GetBytes(data[0]);
}
else
{
sendByetcenter1 = System.BitConverter.GetBytes(Int16.Parse(Convert.ToString(data[0])));
Array.Reverse(sendByetcenter1);
}
for (int i = 1; i < begin && i < data.Count; i++)
{
sendByetcenter = null;
sendByetcenter = System.BitConverter.GetBytes(Int16.Parse(Convert.ToString(data[i])));
Array.Reverse(sendByetcenter);
sendByetcenter1 = sendByetcenter1.Concat(sendByetcenter).ToArray();
}
for (int i = begin; i <= end && i < data.Count; i++)
{
sendByetcenter = System.Text.Encoding.ASCII.GetBytes(data[i]);
sendByetcenter1 = sendByetcenter1.Concat(sendByetcenter).ToArray();
}
for (int i = end + 1; i < data.Count; i++)
{
sendByetcenter = null;
sendByetcenter = System.BitConverter.GetBytes(Int16.Parse(Convert.ToString(data[i])));
Array.Reverse(sendByetcenter);
sendByetcenter1 = sendByetcenter1.Concat(sendByetcenter).ToArray();
}
return sendByetcenter1;
}
/// <summary>
/// 将字节数组中的区域字节转换为字符串,注意区域字节需要为同一个类型的区域,ACS2与HEX需要被区分
/// </summary>
/// <param name="begin">开始的字节</param>
/// <param name="end">结束的字节</param>
/// <param name="data">字节数组</param>
/// <returns>返回字符串</returns>
public string TCPAccept(int begin, int end, byte[] data)
{
string hex = null;
bool HEX = true;
if ((int)data[begin] > 16) HEX = false;
if (HEX)
{
for (int i = begin; i < data.Length && i < end; i++)
{
hex = hex + data[i];
}
}
else
{
hex = Encoding.Default.GetString(data);
}
return hex;
}
}