Programmable controller with intelligent positioning I/O modules
US4510565A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 1982 |
| Grant date | Apr 9, 1985 |
| Priority date | — |
| Expiry date | Sep 20, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/43041
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.