I/O scanner for an industrial control
US4630233A · kind A · utility
9Cited by
7References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1984 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Jun 25, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/22
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The I/O modules for an industrial control processor are connected together in a serial I/O ring. The processor performs an I/O scan sequence in which output data for the I/O modules is shifted serially from an output image table onto the I/O ring and input data from the I/O modules is pushed around the I/O ring and into the processor where it updates an input image table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.