Decoupled display and control system

Details Decoupled display and control system Decoupled display and control system

1992-09-30

1994-06-28

Ruggiero, Joseph

Boots, shoes, and leggings

364188, 364476, G06F 1546

Patent

active

053252870

ABSTRACT:
A control system for a process machine, preferably an injection molding machine, and having an improved control system architecture. The system includes a machine controller which is coupled to and drives the machine and a separate display/operator interface. Both of the units are independently processor driven and function in a decoupled fashion. A communication bus links the display/operator interface and the machine controller, and standardized messages are communicated bidirectionally on the bus. By means of that sole linkage, the machine controller is utilized to drive the machine while the display/operator interface emulates a tightly coupled control panel, but operates independently, except for the communication of messages on the data bus. Preferably, a power supply for the display/operator interface is mounted in the machine controller enclosure and coupled to the interface by a power supply cable. The interface can thus be reduced in size, sealed and non-ventilated to allow for mounting the relatively hostile environment expected around an injection molding machine.

REFERENCES:
patent: 4251858 (1981-02-01), Cambigue et al.
patent: 4418381 (1983-11-01), Molusis et al.
patent: 5122948 (1992-06-01), Zapolin
patent: 5164895 (1992-11-01), Lunz et al.
Barber-Colman pamphlet entitled "MACO 8000--The Modular Distributed Control System", dated Jul. 1985.
Barber-Colman brochure entitled "MACO 8000--Modular Distributed Control For Plastics Processing", dated Apr. 1984.
Barber-Colman brochure entitled "MACO 8000--Data Bus Specification and Communication Protocol Standard", dated Feb. 1983.

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