A part of emerson industrial automation, control techniques has a single minded focus on the design and manufacture of variable speed drives. They manufactures and exports sm-applications lite. The sm-applications lite module is mainly designed to provide programmable control for standalone drive applications or when the drive is connected to a centralized controller via i/o or fieldbus. Sm-applications lite may be programmed using ladder logic with syptlite.
Sm-application lite can be used to tackle automation problems from simple start/stop sequencing with a single drive to more complex machine and motion control applications.
The sm-applications lite module gives you real-time access to all of the drives parameters plus access to data from i/o and other drives. The module uses a high speed multi-tasking operating system with task update times as low as 250us. Tasks are matched to the drives own control loops to give you the best possible performance for drive control and motion.