Patent
Digital control system with Boolean processor
Ernst Dummermuth,Raymond A. Grudowski,Valdis Grants,Otomar Schmidt +3 more
- 01 Jun 1978
46
TL;DR: In this article, an eight-bit microprocessor sequentially reads controller type instructions from a memory and applies the operation codes of selected ones of the instructions to a hardwired Boolean processor.
read more
Abstract: An eight-bit microprocessor sequentially reads controller type instructions from a memory and applies the operation codes of selected ones of the instructions to a hardwired Boolean processor. The microprocessor also couples status words between an I/O image table stored in the memory and the I/O interface racks which connect the programmable controller to the machine being controlled. In general, those controller type instructions which are word oriented are executed by the microprocessor and those which are single-bit oriented are executed by the Boolean processor. The Boolean processor is operable in combination with the microprocessor to examine selected status bits in the I/O image table and to set selected status bits therein to a logic state which is determined in part by the state of the examined status bits.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Distributed logic control system and method
Rodger T. Lovrenich
- 14 Apr 1987
TL;DR: A system and method for controlling operation of a plurality of elements in an automated process, such as a production process, and indicating error conditions as they occur is presented in this paper.
92
Patent
Dual language programmable controller
Odo J. Struger,Ronald E. Schultz,Barry E. Sammons +2 more
- 20 Aug 1979
TL;DR: In this article, a programmable controller includes a microprocessor which operates in response to machine instructions stored in a read-only memory, and when these are read from the random access memory, they are translated to enable the microprocessor to execute a user defined set of microprocessor machine instructions.
90
Patent
Processor unit for microcomputer systems
William J. Harmon,John R. Mick +1 more
- 01 Aug 1980
TL;DR: A processor, used in microcomputer systems for performing data processing functions, includes an arithmetic-logic unit having three operand inputs to provide the capability of executing complex three-operand instructions in a single clock (instruction) cycle as discussed by the authors.
88
Patent
Multiple processor communications system
Gates Dirk I,Watt Kim J,Rantala Glen W,Janke Donald R +3 more
- 11 Apr 1989
TL;DR: In this article, a multiple processor communications system including a control processor (12) and a scan processor (22) having their own program counter (40) enabling the efficient execution of subroutines is described.
54
Patent
High speed program store with bootstrap
Ming-Luh Kao,Jong-Keung Cheng +1 more
- 30 May 1984
TL;DR: In this paper, a microprocessor-based system is provided with a nonvolatile store (such as a PROM) which stores a bootstrap program, a non-volatile storage (e.g., an EPROM), which stores one or more program overlays, and a programmable volatile store (i.e., a RAM).
51
References
Patent
Programmable controller using microprocessor
William H. Seipp
- 01 Jul 1976
TL;DR: In this paper, a programmable controller comprising a standard microprocessor having output address terminals and input/output bi-directional data terminals and means for providing a binary code on the data terminals indicative of the status of the machine cycle to be processed by the microprocessor is provided.
110
Patent
Programmable controller with modular firmware for communication control
Kenneth Norman Larson,Alfred Dale Scarbrough,John Bernard Knueven +2 more
- 15 Jun 1976
TL;DR: A programmable controller module (PCM) is a special purpose computer having a program of subroutines arranged in memory modules which define and implement specific communication protocols (routine) for different communication disciplines as mentioned in this paper.
101
Patent
Industrial control processor system
Ernst H. Dummermuth,Timothy Bielawski,William A. Donze +2 more
- 29 Sep 1976
TL;DR: In this article, an industrial control processor is employed in a numerical control system to operate the servo mechanisms on a machine tool in response to a part program stored on a tape, which includes unique hardware and software features which also allow it to operate as a programmable controller to control the discrete digital devices associated with the machine tool.
77
Patent
Computer numerically controlled threadcutting machine tool
Stanley G. Froyd,Theodore R. Wootton,Wai S. Szeto +2 more
- 27 Dec 1976
TL;DR: In this article, a computer numerical control system for controlling a lathe or similar machine tool in the cutting of threads is presented, where one computer is used as an interpolator to produce speed commands in real time for producing a smooth cutting tool motion.
64
Patent
Numerical control system for machines utilizing a programmable sequence controller
Haga Kiyousuke
- 22 Apr 1976
TL;DR: A numerical control system utilizes a programmable sequence controller as a data transmitter for transmitting numerical control data from a digital computer to machine controllers associated with numerically controlled machine tools as discussed by the authors.
40
Related Papers (5)
Ernst Dummermuth
- 24 May 1974
Ernst Dummermuth,Daniel J. Galdun,Raymond A. Grudowski,Daniel L. Stewart +3 more
- 21 Oct 1981
Odo J. Struger,Ronald E. Schultz,Barry E. Sammons +2 more
- 20 Aug 1979