HJ212自定义组包发送数据

//ascii转16进制字符串 
function convertToHexa(str) {
            var res = [];
            var len = str.length;
            for (var n = 0, l = len; n < l; n++) {
                //var hex = Number(str.charCodeAt(n)).toString(10);//10进制
                var hex = Number(str.charCodeAt(n)).toString(16);//16进制
                res.push(hex);
            }
            return res.join('');
        }

//十六进制字符串转换为数组
function hexStringToArray(str) {
  var pos = 0;
  var len = str.length;
  if (len % 2 != 0) {
    return null;
  }
  len /= 2;
  var arrBytes = new Array();
  for (var i = 0; i < len; i++) {
   var s  = "0x";
   s += str.substr(pos, 2);
    arrBytes.push(s);
    pos += 2;
  }
  return arrBytes;
}
//年月日时分秒毫秒
function getYMDHMS(timestamp) {
  var time = new Date(timestamp);
  var year = time.getFullYear();
  var month = time.getMonth() + 1;
  var date = time.getDate();
  var hours = time.getHours();
  var minute = time.getMinutes();
  var second = time.getSeconds();
  var mes = time.getMilliseconds();
  if (month < 10) {
    month = "0" + month;
  }
  if (date < 10) {
    date = "0" + date;
  }
  if (hours < 10) {
    hours = "0" + hours;
  }
  if (minute < 10) {
    minute = "0" + minute;
  }
  if (second < 10) {
    second = "0" + second;
  }
  return (
    year + "-" + month + "-" + date + " " + hours + ":" + minute + ":" + second+"."+mes
  );
}

//只要年月日的时间
function getYMD(timestamp) {
  var time = new Date(timestamp);
  var year = time.getFullYear();
  var month = time.getMonth() + 1;
  var date = time.getDate();
  var hours = time.getHours();
  var minute = time.getMinutes();
  var second = time.getSeconds();
  var mes = time.getMilliseconds();
  if (month < 10) {
    month = "0" + month;
  }
  if (date < 10) {
    date = "0" + date;
  }
  return (
    year.toString() + month.toString()+ date.toString() + "000000001"
  );
}

//计算Body长度
function getBodyLen(len) {
  var fm = "";
  if(len>=0 && len <10){fm = "000"+len}
  else if(len>=10 && len <100){fm = "00"+len}
  else if(len>=100 && len <1000){fm = "0"+len}
  else {fm=len}
  return fm;
}

//格式化CRC字符串
function formatCRCNum(str,len){
		var strLength = len - str.length;//格式长度减去数字的长度，就是数字前补"0"的个数
		for(var i=0; i<strLength;i++){
			str = "0"+str;
		}
		return str;
	}

//alert(getYMDHMS(new Date().getTime()));//当前时间
//减一天的时间
//alert(getYMDHMS(new Date().getTime()-86400000));
//上报当前时间减去前一天时间的数据，QN是当前时间，DataTime是前一天
var DT = new Date().getTime();
var QN = getYMD(DT);
var DataTime = getYMD(DT - 86400000);//前一天的时间
DataTime = DataTime.substr(0, 14);//不需要毫秒
alert("日消耗 QN:  "+QN+"   "+"DataTime:  "+DataTime);
//var msg = "QN=20220701132624373;ST=32;CN=2031;PW=123456;MN=45007741004940;Flag=4;CP=&&DataTime=20220701132624;w00000-Rtd=0.000000&&";
//msg = [0x51,0x4E,0x3D,0x32,0x30,0x32,0x32,0x30,0x37,0x30,0x31,0x31,0x33,0x32,0x36,0x32,0x34,0x33,0x37,0x33,0x3B,0x53,0x54,0x3D,0x33,0x32,0x3B,0x43,0x4E,0x3D,0x32,0x30,0x31,0x31,0x3B,0x50,0x57,0x3D,0x31,0x32,0x33,0x34,0x35,0x36,0x3B,0x4D,0x4E,0x3D,0x34,0x35,0x30,0x30,0x37,0x37,0x34,0x31,0x30,0x30,0x34,0x39,0x34,0x31,0x3B,0x46,0x6C,0x61,0x67,0x3D,0x34,0x3B,0x43,0x50,0x3D,0x26,0x26,0x44,0x61,0x74,0x61,0x54,0x69,0x6D,0x65,0x3D,0x32,0x30,0x32,0x32,0x30,0x37,0x30,0x31,0x31,0x33,0x32,0x36,0x32,0x34,0x3B,0x77,0x30,0x30,0x30,0x30,0x30,0x2D,0x52,0x74,0x64,0x3D,0x30,0x2E,0x30,0x30,0x30,0x30,0x30,0x30,0x26,0x26];
var body = "QN=";
body += QN;
body += ";ST=32;CN=2031;PW=123456;MN=45007741004940;Flag=4;CP=&&DataTime=";
body += DataTime;
body += ";w00000-Cou=";
var dayValue = parseFloat(ReadFromTag('s.Ch2.日.累计值'));
dayValue = dayValue.toFixed(1);
body += dayValue;
body += "&&";
alert("日消耗body:  "+body)
var BodyHexStr = convertToHexa(body);
//alert(BodyHexStr)
var BodyHexArr = hexStringToArray(BodyHexStr);
//alert(BodyHexStr);
var hj212CRCDec = DoCRC16_HJ212(0,BodyHexArr.length,BodyHexArr);//十进制
//alert("hj212CRCDec:  "+hj212CRCDec);
var hj212CRCStr = formatCRCNum(hj212CRCDec.toString(16),4).toUpperCase();//转16进制，然后格式化两字节填充0，再转大写
alert("日消耗hj212CRCStr:  "+hj212CRCStr);

//组装报文
var msg = "##";
var bodyLen = getBodyLen(BodyHexArr.length);
msg += bodyLen;
msg += body;
msg += hj212CRCStr;
alert("日消耗msg:  "+msg);

var msgHexStr = convertToHexa(msg);
var msgHexArr = hexStringToArray(msgHexStr);
msgHexArr[msgHexArr.length+1] = 0x0D;
msgHexArr[msgHexArr.length+2] = 0x0A;
//上报TCP
var recv = SendTextToTCP("192.168.1.123",5043,1000,msgHexArr);
2023-08-11
HJ212自定义组包发送数据

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