Remote I/O port for transfer of I/O data in a programmable contr

Details Remote I/O port for transfer of I/O data in a programmable contr Remote I/O port for transfer of I/O data in a programmable contr

1985-10-31

1989-02-28

Heckler, Thomas M.

Boots, shoes, and leggings

G06F 1312, G06F 1516

Patent

active

048092177

ABSTRACT:
A method and apparatus for access to a programmable controller at a remote location. A peripheral device with a peripheral processor is connected to a port on an I/O module. Blocks of discrete and block transfer data are transferred to and from a common memory in the I/O module where the data is accessible to a serial communication controller that interfaces the module to a high speed serial data channel. Asynchronous communication is provided between the serial communication controller and the peripheral device using a circular buffer in the common memory. Timing considerations are also disclosed.

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Product Summary, Automate 30-Automate 40, Reliance Electric Company, Mar. 21, 1985, pp. 14-15.
Chapters 3 & 4 of Robert E. Wilhelm, Jr.'s "Programmable Controller Handbook", Hayden Publishing Co.

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