using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Aitex.Core.Util;

namespace Aitex.Core.RT.IOCore
{
    /// <summary>
    /// 源DI 一段时间无变化，设置
    /// </summary>
    public class  HoldDIMonitor
    {
        private DIAccessor diSource = null;
        private DIAccessor diDest = null;
      
        private DeviceTimer timer = new DeviceTimer();

        private bool last;
        private int  period;
        private bool initValue;
   

        public HoldDIMonitor(string source, string dest, int period, bool value)
        {
            diSource = IO.DI[source];
            diDest   = IO.DI[dest];

            this.period = period;
            initValue = value;
        }

        public void Gernerate()
        {
            if (last != diSource.Value)
            {
                timer.Start(period);
            }

            last = diSource.Value;
            diDest.RawData = initValue ? timer.IsTimeout() : !timer.IsTimeout();
        }
    }

}