Process for generating program listings for programming a logic control unit
US6167319A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1998 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Oct 13, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B19/056
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A process is provided for generating a flow chart representing a control program defined by associative relationships between program levels, states and conditions, each condition specifying a transition from an associated one of the states as a source state to a corresponding selected destination state upon satisfaction of the condition during execution of the control program by the logic control unit. Each program level defines a sub-process of the control program. The process includes the steps of rendering on a chart: a first group of state indicators each representing a corresponding one of a first plurality of the states, and including an associated first state anchor point; a first group of condition indicators each being associated with a corresponding one of the first group of state indicators, each of the first group of condition indicators indicating a corresponding one of a first plurality of the conditions, and including an associated first condition anchor point; a second group of state indicators each indicating a corresponding one of a second plurality of the states, and including an associated second state anchor point; a second group of condition indicators each b…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.