Controller for glass sheet processing system
US4825376A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1986 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Apr 17, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S65/13
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A controller for use in connection with a central control for a glass sheet processing system including an operator interface and a master computer, the controller including a slave computer, a port for two-way communication of data signals between the master computer and the slave computer, a position encoder corresponding to each of the movable components monitored by the controller, and a port for communicating a digital signal representative of the position of the movable component, issued by the position encoder, to the slave computer. The slave computer includes logic for receiving position information from the position encoders and continuously comparing this information to preselected position parameters downloaded from the master computer to determine whether an unsafe condition exists, sending a signal for deactivating the power switch to the drives for the affected components, and sending an error condition message back to the master computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.