Programmable logic controller
US9008805B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 16, 2011 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Jun 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B19/05
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A PLC includes a single-chip, a DC power module, a relay output module, an I/O module, and a pulse output module. The single chip includes a single-chip timer, a hardware watchdog, a 11.0592M crystal, and an A/D converter module. A system program is burned into an EEPROM (Electrically Erasable Programmable Read-Only Memory) of the single-chip. The system program includes a programming module and a control module. A DC power module includes an anti jamming circuit, a first output port, and a second output port. The first output port and the second output port are respectively connected to the anti-jamming circuit, and the single-chip is connected to the first output port. A relay output module is connected to the second output port. An I/O module receives and sends digital signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.