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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace FLY.Modbus
{
/// <summary>
/// PLC寄存器 与 C# 类型数据 转换， 不含bool
/// </summary>
public class RegTypeConverter
{
/// <summary>
/// PLC寄存器 或线圈 转 C# 类型数据
/// </summary>
/// <param name="plc_value">PLC 寄存器数据 ushort[] 或 bool </param>
/// <param name="type">PLC 数据类型</param>
/// <param name="scale">PLC数据放大倍数</param>
/// <returns></returns>
public static object ToObject(object plc_value, REG_TYPE type, double scale)
{
if(type == REG_TYPE.BOOL)
{
var v = (bool)plc_value;
if (scale < 0)
return !v;
else
return v;
}
ushort[] data = (ushort[])plc_value;
switch (type)
{
//case REG_TYPE.BOOL:
// {
// return data[0] != 0 ? true : false;
// }
case REG_TYPE.INT16:
{
float v = (Int16)data[0];
v = (float)(v * scale);
return v;
}
case REG_TYPE.UINT16:
{
float v = (UInt16)data[0];
v = (float)(v * scale);
return v;
}
case REG_TYPE.UINT32:
{
float v = (UInt32)(data[0] | (data[1] << 16));
v = (float)(v * scale);
return v;
}
case REG_TYPE.INT32:
{
float v = (Int32)(data[0] | (data[1] << 16));
v = (float)(v * scale);
return v;
}
case REG_TYPE.FLOAT:
{
byte[] dat = new byte[] { (byte)data[0], (byte)(data[0] >> 8), (byte)data[1], (byte)(data[1] >> 8) };
float v = BitConverter.ToSingle(dat, 0);
if ((v > 1000000) || (v < -1000000))
v = 0;
v = (float)(v * scale);
return v;
}
default:
{
throw new Exception("ToObject type=" + type + "不支持的类型");
}
}
}
/// <summary>
/// C# 类型数据 转 PLC寄存器 或线圈
/// </summary>
/// <param name="value">C#中数值 只能是 float or bool</param>
/// <param name="type">PLC 数据类型</param>
/// <param name="scale">PLC数据放大倍数</param>
/// <returns>ushort[] or bool </returns>
public static object ToRegs(object value, REG_TYPE type, double scale)
{
if (type == REG_TYPE.BOOL)
{
bool v = (bool)value;
if (scale < 0)
return !v;
else
return v;
}
byte[] bs;
float f = (float)value;
f = (float)(f / scale);
switch (type)
{
case REG_TYPE.INT16:
{
short v = (short)f;
return new ushort[] { (ushort)v };
}
case REG_TYPE.UINT16:
{
ushort v = (ushort)f;
return new ushort[] { v };
}
case REG_TYPE.FLOAT:
{
float v = (float)f;
bs = BitConverter.GetBytes(v);
return new ushort[] {
(ushort)((bs[1] << 8) | bs[0]),
(ushort)((bs[3] << 8) | bs[2]) };
}
case REG_TYPE.INT32:
{
Int32 v = (Int32)f;
bs = BitConverter.GetBytes(v);
return new ushort[] {
(ushort)((bs[1] << 8) | bs[0]),
(ushort)((bs[3] << 8) | bs[2]) };
}
case REG_TYPE.UINT32:
{
UInt32 v = (UInt32)f;
bs = BitConverter.GetBytes(v);
return new ushort[] {
(ushort)((bs[1] << 8) | bs[0]),
(ushort)((bs[3] << 8) | bs[2]) };
}
default:
{
throw new Exception("ToObject type=" + type + "不支持的类型");
}
}
return null;
}
}
/// <summary>
/// C# 类型枚举
/// </summary>
public enum REG_TYPE
{
/// <summary>
/// 出错
/// </summary>
Unknown = 0,
/// <summary>
/// float
/// </summary>
FLOAT = 1,
/// <summary>
/// uint16
/// </summary>
UINT16 = 2,
/// <summary>
/// int16
/// </summary>
INT16 = 3,
/// <summary>
/// uint32
/// </summary>
UINT32 = 4,
/// <summary>
/// int32
/// </summary>
INT32 = 5,
/// <summary>
/// bool
/// </summary>
BOOL = 6,
}
}