Pc with intelligent positioning i/o modules

Details Pc with intelligent positioning i/o modules Pc with intelligent positioning i/o modules

G - Physics

05

B

341/97

G05B 15/02 (2006.01) G05B 19/04 (2006.01) G05B 19/414 (2006.01) G05D 3/14 (2006.01)

Patent

CA 1203869

PROGRAMMABLE CONTROLLER WITH INTELLIGENT POSITIONING I/O MODULES Abstract of the Disclosure A programmable controller for closed-loop positioning control has a main processor unit, and an I/O interface rack in which a master I/O positioning module and three satellite I/O modules are mounted and connected to servomechanisms to control motion along three axes of a controlled machine. Move data is transmitted from the main processor unit to the master I/O positioning module in data blocks, with the number of transmissions varying, depending upon a mode of axis coupling that is used in controlling the particular machine. The master I/O positioning module converts move data from a user program format to a binary format and transfers it to the satellite I/O modules, each of which performs closed-loop positioning control of a respective axis of motion. The processor on each satellite I/O module also determines a position prior to the end of each move to apply a user-programmed deceleration when needed to blend moves having different velocities.

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