//Asynchronous JavaScript code

let timeStamp = new Date().toLocaleDateString().replace(/[/]/g, "_");

let path = "C:\\Users\\Public\\Export_" + timeStamp +".csv";

let delimiter =",";

let start = new Date(); //now

let end = new Date(start.getTime() - 1000 * 60 * 60 * 24);//last 24h

let CSVData = "Time Stamp:"  + delimiter +"Tag name:" + delimiter +"Value:" + "\n"; //header

let logTagSet = HMIRuntime.TagLogging.CreateLoggedTagSet(["Flow:LoggingTag_Flow", "Speed:LoggingTag_Speed", "Velocity:LoggingTag_Velocity"]);

let loggedTagsMatrix = await logTagSet.Read(start, end, 0);

for(let loggedTag of loggedTagsMatrix)

{

for(let loggedTagValue of loggedTag.Values)

{

CSVData += new Date(loggedTagValue.TimeStamp) + delimiter + loggedTag.Name + delimiter + loggedTagValue.Value  + "\n";

HMIRuntime.FileSystem.WriteFile(path, CSVData, "utf8").then(

function() {

HMIRuntime.Trace("Write file finished successfully");

}).catch(function(errorCode) {

HMIRuntime.Trace("Write failed errorcode=" + errorCode);