RBlabs

Thank you. That approach does the trick.

Thanks. Works. So easy! One more question please. The try/catch code does not seem pick up the error C1013 that I get when the file I am writing to is already open, in Excel, for example. What file function is available to test the file beforehand?

Hi Guru, When I run RB_Export by right clicking this export set in the Workspace and selecting "begin export set" it works just fine. But when I try to do the same thing in the sequence below it produces a .csv file with no data, just a header. Please what am I doing wrong? if (component.EditBox_Export_FileName.strContents == "") system.MessageBox("Pleae enter a FileName to Export to in the box just above. You may use the <DIR> button to select the last saved filename, then press <+Copy> to use that name incremented by one. ") else if (system.MessageBox("Export Graph data set to .csv file? Note: To export a subset of data points select the starting point with MarkerA [and optionally the ending point with MarkerB]." ,"OKCancel") == "OK") Export.RB_Export.strFileName = strExportPath + strExportFileName Try Export.RB_Export.Start() Export.RB_Export.Stop() Catch() System.ErrorMessage(strLastError) ?StrLastError endcatch strExportLastFileName = StrExportFileName component.EditBox_Export_Last_FileName.strContents = strExportFileName StrExportFileName = "" component.EditBox_Export_FileName.strContents = "" endif endif

Thank you for your input, which by the way is spot on. Both of your suggestions are correct and my script is working fine. I am new to forums as well, and impatient, so though I figured this out myself soon after posting my questions I neglected to go back to the forum to see your response. I do appreciate your help and will try to do better in the future.

New to LabJack, Azeotech and Lua, I have just written a Lua script to average N pulse-width measurements taken every ms; each time N (typ 1000) is reached it calculates the average and updates a register in Lua IO Memory for DaqFactory to read and plot. I also want to be able to update N in Lua IO Memory with a DaqFactory Variable Value Component: Set To action from the Graph page. My Lua script works but I do not yet know how to go about accessing these shared registers from DaqFactory.