Sequence controller
US5097405A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1989 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Oct 12, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/25315
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A mechanism to be sequentially controlled is divided into a plurality of functional blocks. Each functional block is assigned to a control block for sequentially controlling the functional block. The mechanism is sequentially and dispersedly controlled by a plurality of control blocks. Synchronization between control blocks is realized by referring to an input/output signal or an internal signal belonging to each control block. Each control block is set with an activation condition for turning on or off its own function so that the whole mechanism can be integrally controlled with an arbitrary condition. The sequence program for each control block is made by using an optimum one from among a conditional type definition, a sequential type definition and a combination of both definitions, in accordance with the control type of the program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.