/// <summary>
/// 根据类型地址长度确认需要读取的指令头
/// </summary>
/// <param name="address">起始地址</param>
/// <param name="length">长度</param>
/// <param name="isBit">指示是否按照位成批的读出</param>
/// <param name="plcNumber">PLC编号</param>
/// <returns>带有成功标志的指令数据</returns>
public static OperateResult <byte[]> BuildReadCommand(string address, ushort length, bool isBit, byte plcNumber)
{
var analysis = MelsecHelper.McA1EAnalysisAddress(address);
if (!analysis.IsSuccess)
{
return(OperateResult.CreateFailedResult <byte[]>(analysis));
}
// 默认信息----注意：高低字节交错
// byte subtitle = analysis.Content1.DataType == 0x01 ? (byte)0x00 : (byte)0x01;
byte subtitle = isBit ? (byte)0x00 : (byte)0x01;
byte[] _PLCCommand = new byte[12];
_PLCCommand[0] = subtitle; // 副标题
_PLCCommand[1] = plcNumber; // PLC号
_PLCCommand[2] = 0x0A; // CPU监视定时器（L）这里设置为0x00,0x0A，等待CPU返回的时间为10*250ms=2.5秒
_PLCCommand[3] = 0x00; // CPU监视定时器（H）
_PLCCommand[4] = (byte)(analysis.Content2 % 256); // 起始软元件（开始读取的地址）
_PLCCommand[5] = (byte)(analysis.Content2 / 256);
_PLCCommand[6] = 0x00;
_PLCCommand[7] = 0x00;
_PLCCommand[8] = analysis.Content1.DataCode[1]; // 软元件代码（L）
_PLCCommand[9] = analysis.Content1.DataCode[0]; // 软元件代码（H）
_PLCCommand[10] = (byte)(length % 256); // 软元件点数
_PLCCommand[11] = 0x00;
return(OperateResult.CreateSuccessResult(_PLCCommand));
}
/// <summary>
/// 从三菱PLC中批量读取位软元件，返回读取结果
/// </summary>
/// <param name="address">起始地址</param>
/// <param name="length">读取的长度</param>
/// <returns>带成功标志的结果数据对象</returns>
public OperateResult <bool[]> ReadBool(string address, ushort length)
{
// 地址解析
var analysis = MelsecHelper.McA1EAnalysisAddress(address);
if (!analysis.IsSuccess)
{
return(OperateResult.CreateFailedResult <bool[]>(analysis));
}
// 字读取验证
if (analysis.Content1.DataType == 0x00)
{
return(new OperateResult <bool[]>(StringResources.Language.MelsecReadBitInfo));
}
// 核心交互
var read = Read(address, length);
if (!read.IsSuccess)
{
return(OperateResult.CreateFailedResult <bool[]>(read));
}
// 转化bool数组
return(OperateResult.CreateSuccessResult(read.Content.Select(m => m == 0x01).Take(length).ToArray()));
}
/// <summary>
/// 根据类型地址以及需要写入的数据来生成指令头
/// </summary>
/// <param name="address">起始地址</param>
/// <param name="value">数据值</param>
/// <param name="plcNumber">PLC编号</param>
/// <returns>带有成功标志的指令数据</returns>
public static OperateResult <byte[]> BuildWriteCommand(string address, byte[] value, byte plcNumber)
{
var analysis = MelsecHelper.McA1EAnalysisAddress(address);
if (!analysis.IsSuccess)
{
return(OperateResult.CreateFailedResult <byte[]>(analysis));
}
int length = -1;
if (analysis.Content1.DataType == 1)
{
// 按照位写入的操作，数据需要重新计算
length = value.Length;
value = MelsecHelper.TransBoolArrayToByteData(value);
}
// 默认信息----注意：高低字节交错
byte subtitle = analysis.Content1.DataType == 0x01 ? (byte)0x02 : (byte)0x03;
byte[] _PLCCommand = new byte[12 + value.Length];
_PLCCommand[0] = subtitle; // 副标题
_PLCCommand[1] = plcNumber; // PLC号
_PLCCommand[2] = 0x0A; // CPU监视定时器（L）这里设置为0x00,0x0A，等待CPU返回的时间为10*250ms=2.5秒
_PLCCommand[3] = 0x00; // CPU监视定时器（H）
_PLCCommand[4] = (byte)(analysis.Content2 % 256); // 起始软元件（开始读取的地址）
_PLCCommand[5] = (byte)(analysis.Content2 / 256);
_PLCCommand[6] = 0x00;
_PLCCommand[7] = 0x00;
_PLCCommand[8] = analysis.Content1.DataCode[1]; // 软元件代码（L）
_PLCCommand[9] = analysis.Content1.DataCode[0]; // 软元件代码（H）
_PLCCommand[10] = (byte)(length % 256); // 软元件点数
_PLCCommand[11] = 0x00;
// 判断是否进行位操作
if (analysis.Content1.DataType == 0x01)
{
if (length > 0)
{
_PLCCommand[10] = (byte)(length % 256); // 软元件点数
}
else
{
_PLCCommand[10] = (byte)(value.Length * 2 % 256); // 软元件点数
}
}
else
{
_PLCCommand[10] = (byte)(value.Length / 2 % 256); // 软元件点数
}
Array.Copy(value, 0, _PLCCommand, 12, value.Length); // 将具体的要写入的数据附加到写入命令后面
return(OperateResult.CreateSuccessResult(_PLCCommand));
}
