公开(公告)号：WO1987006373A1

公开(公告)日：1987-10-22

申请号：PCT/US1987000855

申请日：1987-04-15

Applicant: GLASSTECH, INC.

Inventor： GLASSTECH, INC. ,  BRINKER, Gary, D. ,  KLOPPING, Jeffrey, N. ,  FINTEL, Eric, D.

IPC: G06F15/46

CPC classification number: G05B19/4141 ,  G05B19/291 ,  G05B2219/33342 ,  G05B2219/34368 ,  G05B2219/34388 ,  G05B2219/35391 ,  G05B2219/42179 ,  G05B2219/43008 ,  G05B2219/43015 ,  G05B2219/43048 ,  G05B2219/49219 ,  G05B2219/50031 ,  G05B2219/50043 ,  G05B2219/50048 ,  G05B2219/50198

Abstract: A position controller (40) for a glass sheet processing system (10) having a central control system including an operator interface (58) and a master computer (44), the position controller (40) including a slave computer (42), means (50) for two-way communication of multi-character command and data signals between the master computer (44) and the slave computer (42), a digital to analog converter (56), a variable speed drive (46) for driving a movable component in the glass processing system, means for communicating a signal from the slave computer (42) through the digital to analog converter (56) for driving the variable speed drive, and absolute position encoder (48) fixed to the movable component in the system, and means (52) for communicating the digital signal representative of the position of the movable component to the slave computer (42). The slave computer system (42) includes logic means for receiving data and command input from the master computer (44) in the central control system, processing this information as required, generating a signal capable of operating a variable speed drive (46), and reporting an echo back signal to the master computer (44) indicating that the driven component has reached the desired position. The slave computer (42) also includes logic means for transmitting current position and stored end point and velocity profile information back to the master computer (44) for output to a monitor at the operator's request.