Programmable controller
US4292666A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 1978 |
| Grant date | Sep 29, 1981 |
| Priority date | — |
| Expiry date | Apr 12, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/15107
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A small, low cost, programmable controller is described capable of solving user programs represented in networks having up to seven rows and eleven columns. A column solver is utilized to provide efficient and fast solution of the user control network. The programmable controller also solves calculate functions having multiple outputs to facilitate use of the output information in the control program. A programming panel using a CRT display shows one or more selected control networks and, in conjunction with the central processing unit of the programmable controller, provides for the insertion of networks between two existing networks. Since the networks are solved by the controller mainframe in a sequential fashion, this network insertion allows the user to optimize his or her control program when solution order of the networks is important. The output coil numbers of network rows may also be assigned by the user independent of their placement in the control program to further facilitate programming the controller. The programming panel includes a movable cursor on the CRT display which, in conjunction with a light-emitting diode (LED), allows the user to monitor the real-time pow…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.