Galil's Ladder Interface Software is a software tool for the RIO-471x0 compact PLC. The software converts a relay Ladder Logic program into code for input into the RIO controller. Ladder Logic is often used by programmable logic controller (PLC) programmers to graphically input I/O logic. While direct RIO programming using Galil's two-letter text instructions allows for flexible coding, it is sometimes easier to determine the I/O logic visually with Ladder Logic. The Ladder Interface Software provides an easy-to-use graphical interface that allows object types for: contacts, coils, control relays, boxes (including timers, counters and data manipulation) and analog I/O. The software generates an RIO program from the specified objects in the flow diagram. In addition to generating optimized code, Galil's Ladder Interface Software automatically adds determinism to the RIO program.

Steps to Running a Ladder Program

1. Open the Ladder Interface software and construct the ladder diagram using contacts, coils and boxes to create the machine logic. Save the Ladder Logic program (.lad)
2. When the ladder logic program is saved, a .dmc file will automatically be created in the same directory. It contains the Galil code for downloading onto the RIO-471x0.
3. To download the .dmc code, you must first install the GalilTools software. To get scope capability, the full version is required, to just download and run a program the free "Lite" version will work
4. After GalilTools is installed, connect to the RIO-471x0 and open the .dmc file that was created.
5. Click the "Execute" button to download the .dmc file and execute the Ladder program. Anytime the Ladder Logic program is changed, the .lad file must be saved. Then a new .dmc file will be created and must be downloaded to the RIO via GalilTools in order for the changes to take effect.