AVG Automation's RL210-IBS resolver comprises two resolvers in one housing and coupled together by a 128:1 gear train. The two together provide absolute position over up to 128 turns (equal to the gearing between the two) of the resolver shaft. This makes the RL210-IBS an ideal position sensor for shut height type of applications, where the shut height adjustment motor makes several turns over the ram travel and, yet it is desirable to have absolute measurement of the shut height.

Resolvers have a reliable track record of applications in aerospace, military, and industrial applications, where they have been used for decades for position sensing. Typical applications include packaging machines and machine tools. Resolvers are designed to operate reliably under extremely hostile environments, such as continuous mechanical shock, vibration, extreme temperature and humidity changes, and/or exposure to oil mists, coolants, or solvents.

The SAC-RL210-IBS InterBus multi-turn resolver provides shaft position information to the user's application via the InterBus fieldbus. The 17-bit position data is encoded into gray scale format and is passed to an InterBus subsystem within the resolver. The data can then be accessed by an InterBus master device over the InterBus fieldbus network. DIP switches (located on a PC board that can be accessed by removing the end of the unit) are used to select the direction of increasing counts (CW/CC\V).