mesclient-QM/src/com/mes/util/PLCUtils.java

package com.mes.util;

import com.github.xingshuangs.iot.protocol.s7.service.S7PLC;
import com.mes.ui.MesClient;

public class PLCUtils {

    // 写入允许启动方法
    public static boolean writeStartMethod(S7PLC plc) {
        // 对plc写入ture
        plc.writeBoolean("V90.0",true);
        return true;
    }

    // 将允许启动置空
    public static boolean writeStopMethod(S7PLC plc) {
        plc.writeBoolean("V90.0",false);
        return true;
    }


    // 读取PLC结束加工信号
    public static boolean readStopMethod(S7PLC plc) {
        return plc.readBoolean("M4.0");
    }


    // 获取参数
    public static QmParam getParameter(S7PLC plc) {
        //  TODO
        String leakageValue = "0.0";
        // 结果
        String result = getResult(plc);
        // 检测压
        String pressure = plc.readFloat32("VD852")+"";
        // 预充时间
        String preChargeTime = plc.readInt16("VW2048")+"";
        // 充气时间
        String chargeTime = Math.round(plc.readInt16("VW504") / 10.0) + "";
        // 平衡时间
        String balanceTime = Math.round(plc.readInt16("VW506") / 10.0) + "";
        // 检测时间
        String detectTime = Math.round(plc.readInt16("VW508") / 10.0) + "";
        //循环时间
        String loopTime = Math.round(plc.readInt16("VW850") / 10.0) + "";

        QmParam qmParam = new QmParam();
        qmParam.setLeakRateUnit("kPa");
        qmParam.setLeakValUnit("kPa");
        qmParam.setTestPressure(pressure);
        qmParam.setTestPressureUnit("kPa");
        qmParam.setTestResult(result);
        qmParam.setCqDuration(chargeTime);
        qmParam.setByDuration(balanceTime);
        qmParam.setCsDuration(detectTime);
        qmParam.setDeviceType(MesClient.csyq);
        qmParam.setTestPace(loopTime);
        long start = System.currentTimeMillis();
        final long MAX_WAIT = 5000;
        while (true){
            leakageValue = plc.readString("VB307", 7);
            // 条件1：读取到非空，直接跳出循环
            if (leakageValue != null && !leakageValue.trim().isEmpty()) {
                break;
            }
            long now = System.currentTimeMillis();
            if (now - start >= MAX_WAIT) {
                break;
            }
            try {
                Thread.sleep(50);
            } catch (InterruptedException e) {
                break;
            }
        }
        qmParam.setLeakVal(leakageValue);
        return qmParam;
    }

    public static String getResult(S7PLC plc){
        byte data = plc.readByte("VB503");
        switch (data) {
            case 2:
                return "OK";
            case 3:
                return "NG";
            default:
                return "未知状态";
        }
    }




}