Unitronics File Types

Data Tables: upd, exported from DT form. Contains all of the DT and DT info in that project.

	Folder	Purpose
	Alarms	If a PLC contains an SD card, and the PLC application comprises Alarms, the PLC stores the first 8 Alarms in RAM, and stores them in a . ual file in this folder.
	DT	This can contain two kinds of files: .udt - When the Ladder function DT to SD runs, it creates .udt files in this folder. A .udt is a file containing a single Data Table .fdt - When a user uses Information Mode to download a Data Table from the PLC to an SD Card, it creates an .fdt file in this folder. This file copies all of the data ta
	Log	When the Ladder function Write Log Line to SD runs, it creates .ulg files in this folder.
	My_Files	Via your PC, store any type of file into this folder, such as .html or .jpg. Your Ladder application can read these files in 'chunks' of 512 bytes via the SD File functions.
	SdBLocks	Your Ladder application can read/write blocks of raw data between operands and the 'Data Block' files in this folder.
	System	When you upload/download an OS from the PLC using Information Mode, it is via this folder.
	Trends	When the Ladder function Write Trend SD runs, it creates .utr files in this folder.
	User_App	This folder has the following uses: Information Mode - When you upload/download applications, and applications containing the vlp file, it is via this folder. The cloning process is via this folder Cloning via VisiLogic - The Create Clone File option on the Build menu stores the image in this folder.