Few more questions… Is there harm in leaving the Comm Handle (CH) open all the time and append to the file all day? Or is it best to open it and close it every time? What is the execution time of opening and closing this type of CH? What effect does it have on the performance of the system if I left it open indefinitely? Will the controller close the CH after a certain amount of time? What happens to the CH/controller/file when the CH is open and I download an update for the strategy? When power is lost with the CH open, does anything happen to the file I’m appending (in my case)? What happens to the CH/file when switching from Run to Stop if it is in the middle of appending the file? …not in a critical situation here, but I’m curious.
Check to see if sdcard is present? If someone removes the card during CH open or appending a file? Eject card button to safely remove it?