/// <summary>
/// 设置工作模式
/// </summary>
/// <param name="sp">串口辅助类对象</param>
/// <param name="wm">工作模式</param>
public static void SetWorkMode(this SerialPortUtil sp, WorkMode wm)
{
byte[] msg, crc16;
msg = SerialPortUtil.HexToByte("FE 10 03 EB 00 01 02 00 00");
msg[8] = (byte)(int)wm;
crc16 = SerialPortUtil.CRC16(msg, CRCMode.MODBUS);
Array.Reverse(crc16);
sp.WriteData(msg.Concat(crc16).ToArray());
}
/// <summary>
/// 控制继电器
/// </summary>
/// <param name="sp">串口辅助类对象</param>
/// <param name="channel">通道（从1开始）</param>
/// <param name="closing">闭合为true，断开为false</param>
public static void ControlRelay(this SerialPortUtil sp, int channel, bool closing)
{
byte[] msg, crc16;
msg = SerialPortUtil.HexToByte("FE 05 00 00 00 00");
msg[3] = (byte)(channel - 1);
msg[4] = (byte)(closing ? 0xFF : 0x00);
crc16 = SerialPortUtil.CRC16(msg, CRCMode.MODBUS);
Array.Reverse(crc16);
sp.WriteData(msg.Concat(crc16).ToArray());
}
/// <summary>
/// 查询DI通道状态
/// </summary>
/// <param name="sp">串口辅助类对象</param>
/// <param name="start">开始通道（从1开始）</param>
/// <param name="num">查询通道数量（应不大于8）</param>
/// <returns>通道闭合状态数组</returns>
public static int[] CheckInput(this SerialPortUtil sp, int start, int num)
{
var status = new int[num];
var message = new byte[6];
sp.SendCommand(CheckInputData(start, num), ref message, 100);
int[] res = DataParse(message);
Array.Copy(res, 0, status, 0, num);
return(status);
}
private static byte[] CheckInputData(int start, int num)
{
byte[] msg, crc16;
msg = SerialPortUtil.HexToByte("FE 02 00 00 00 00");
msg[3] = (byte)(start - 1);
msg[5] = (byte)num;
crc16 = SerialPortUtil.CRC16(msg, CRCMode.MODBUS);
Array.Reverse(crc16);
return(msg.Concat(crc16).ToArray());
}
/// <summary>
/// 控制继电器
/// </summary>
/// <param name="sp">串口辅助类对象</param>
/// <param name="channel">通道（从1开始）</param>
/// <param name="closing">闪闭为true，闪开为false</param>
/// <param name="time">时间，单位100ms</param>
public static void ControlRelay(this SerialPortUtil sp, int channel, bool closing, int time)
{
byte[] msg, crc16;
msg = SerialPortUtil.HexToByte("FE 10 00 00 00 02 04 00 00 00 00");
msg[3] = (byte)(channel * 5 - 2);
msg[8] = (byte)(closing ? 0x04 : 0x02);
msg[10] = (byte)time;
crc16 = SerialPortUtil.CRC16(msg, CRCMode.MODBUS);
Array.Reverse(crc16);
sp.WriteData(msg.Concat(crc16).ToArray());
}
/// <summary>
/// 控制所有继电器
/// </summary>
/// <param name="sp">串口辅助类对象</param>
/// <param name="closing">闭合为true，断开为false</param>
public static void ControlAllRelays(this SerialPortUtil sp, bool closing) =>
sp.WriteData(closing ? SerialPortUtil.HexToByte("FE 0F 00 00 00 04 01 FF 31 D2") : SerialPortUtil.HexToByte("FE 0F 00 00 00 04 01 00 71 92"));
/// <summary>
/// 使用定时器查询DI通道状态，但不返回结果，需要使用DataReceived事件获取结果
/// </summary>
/// <param name="sp">串口辅助类对象</param>
/// <param name="start">开始通道（从1开始）</param>
/// <param name="num">查询通道数量（应不大于8）</param>
/// <param name="timer">Timer控件对象</param>
public static void CheckInput(this SerialPortUtil sp, int start, int num, Timer timer) =>
timer.Tick += (sender, e) => { sp.WriteData(CheckInputData(start, num)); };
