using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Threading;
using?System.IO.Ports;
using?System.Windows.Forms;
namespace?WindowsFormsApplication1
{
????class?PLC
????{
????????///?

????????///?速美達自動化?鄭茂強
????????///?zhenggong@126.com
????????///?

????????//觸點?X、Y、R
????????//數據寄存器?D
????????/*-----讀取單觸點狀態[RCS]?（XYR）------
?????????*?例:讀取Y1
?????????*?發送:%01#RCSY0001**[CR]
?????????*?返回:%01$RC1**[CR]
?????????*?0=“off“1=“on“
?????????*?----------------------*/
????????/*-----寫入單觸點狀態[WCS]?（XYR）------
?????????*?例:寫入Y1=“on“
?????????*?發送:%01#WCSY00011**[CR]
?????????*?返回:%01$WC**[CR]
?????????*?----------------------*/
????????/*-----讀取多觸點狀態[RCP]?（XYR）------
?????????*?例:讀取Y1-Y3
?????????*?發送:%01#RCP3Y0001R0001Y0003T0099**[CR]
?????????*?返回:%01$RC1011**[CR]
?????????*?0=“off“1=“on“
?????????*?----------------------*/
????????/*-----讀取Word型觸點狀態[RCC]?（XYR）------
?????????*?例:讀取Y1-Y3
?????????*?發送:%01#RCCY00010003**[CR]
?????????*?返回:%01$RC34127856BC9A**[CR]
?????????*?----------------------*/
????????/*-----寫入多觸點狀態[WCP]?（XYR）------
?????????*?例:寫入Y1-Y3為on
?????????*?發送:%01#WCP3Y00011R00021Y00031**[CR]
?????????*?返回:%01$WC**[CR]
?????????*?0=“off“1=“on“
?????????*?----------------------*/
????????/*-----讀取DT數據[RD]---------------
?????????*例:讀取D1105-D1107的內容
?????????*發送:%01#RDD011050110757[CR]
?????????*返回:%01$RD630044330A0062[CR]
?????????*值:D1105=0063HD1106=3344HD1107=000AH
?????????*----------------------*/
????????/*-----寫入DT數據[WD]----------------
?????????*?例:寫入數據到D1-D13?D1=0005HD2=1507HD=0900H
?????????*?發送:%01%WDD00001000030500071500095D[CR]
?????????*?返回:%01$WD13[CR]
?????????*----------------------*/
????????public?static?TextBox?txtCommLog?=?new?TextBox（）;
????????public?static?SerialPort?COMM?=?new?SerialPort（）;
????????public?static?double[]?DTValue?=?null;
????????public?static?System.Collections.BitArray?[]?arrXYMValue?=?null;
????????public?static?int?iDelay?=?60;
????????public?static?bool?Open（string?strPort）
????????{
????????????try
????????????{
????????????????if?（COMM.IsOpen）
????????????????{
????????????????????COMM.Close（）;
????????????????}
????????????????COMM.PortName?=?strPort;
????????????????COMM.BaudRate?=?19200;
????????????????COMM.Parity?=?Parity.Even;
????????????????COMM.DataBits?=?7;
????????????????COMM.StopBits?=?StopBits.One;
????????????????COMM.NewLine?=?“\r\n“;?
????????????????COMM.DataReceived?+=?new?SerialDataReceivedEventHandler（OnDataReceived）;
????????????????COMM.Open（）;
????????????????return?true;
????????????}
????????????catch?（Exception?ex）
????????????{
????????????????return?false;
????????????}

????????}
????????public?static?void?Close（）
????????{
????????????if?（COMM.IsOpen）
????????????{
????????????????COMM.Close（）;
????????????}
????????}
????????private?delegate?void?SetTextCallback（string?text）;
????????private?static?vo