Data handling module for programmable controller

Details Data handling module for programmable controller Data handling module for programmable controller

1976-12-14

1978-10-24

Shaw, Gareth D.

Boots, shoes, and leggings

364104, G06F 1308, G06F 919, G06F 1546

Patent

active

041225198

ABSTRACT:
A data handling module connects to the memory of a programmable controller and operates to periodically steal memory cycles from the controller processor to read data out of the memory and write data into it. The data handling module includes a microprocessor which is programmed to perform a number of functions. The function to be performed is indicated by a control status register which is set by the control program and which is periodically examined by the data handling module. The status of the data handling module is also indicated by a register which is examined by programmable controller instructions. In response to directions indicated by the control status register, data files may be transferred between a data file storage and an active data file storage area and messages may be coupled to a TTY which connects to the data handling module.

REFERENCES:
patent: 3581291 (1971-05-01), Iwamoto et al.
patent: 3614740 (1971-10-01), Delagi et al.
patent: 3638195 (1972-01-01), Brender et al.
patent: 3653001 (1972-03-01), Ninke
patent: 3665487 (1972-05-01), Campbell et al.
patent: 3781810 (1973-12-01), Downing
patent: 3810104 (1974-05-01), Markley
patent: 3878513 (1975-04-01), Werner
patent: 3942158 (1976-03-01), Dummermuth
patent: 3955180 (1976-05-01), Hirtle
patent: 3956739 (1976-05-01), Ophir et al.
patent: 3997879 (1976-12-01), Markley et al.
patent: 3999163 (1976-12-01), Levy et al.
patent: 4006464 (1977-02-01), Landell
patent: 4025504 (1977-05-01), Chowning et al.
patent: 4028668 (1977-07-01), Riikonen
patent: 4029950 (1977-06-01), Haga
patent: 4034354 (1977-07-01), Simmons
patent: 4038533 (1977-07-01), Dummermuth et al.
patent: 4045660 (1977-08-01), Weisgerber et al.
patent: 4047161 (1977-09-01), Davis
patent: 4048623 (1977-09-01), Gruner
patent: 4053950 (1977-11-01), Bourke et al.
patent: 4056848 (1977-11-01), Gilley
patent: 4058711 (1977-11-01), Ondercin et al.
patent: 4064395 (1977-12-01), Schubeler et al.
patent: 4067058 (1978-01-01), Brandstaetter et al.
patent: 4068297 (1978-01-01), Komiva

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