Jeff P Busch

US Patent:

59536810, Sep 14, 1999

Filed:

Jul 30, 1996

Appl. No.:

8/688558

Inventors:

Luigi Cantatore - White Plains NY
Jeff Busch - Katonah NY
Maurice J. Epstein - Ardsley NY
Edward J. Hetherington - Brewster NY
Saverio E. Ferrante - Flushing NY

Assignee:

Bayer Corporation - Tarrytown NY

International Classification:

G01N 1514

US Classification:

702 31

Abstract:

A node having an on-board microprocessor and circuits to perform a particular function in an analytic instrument system having a CANBUS and using distributed logic to control the various analysis functions, including data acquisition, system control, and data transition. The various node circuits and functions include generating a signal to control a motor by pulse width modulation and feedback, control of temperature for sample and reagent reactions (incubations), monitoring the status of instrument control panel switches and visual indicators, voltage sources, test sample location, processing calorimeter measurements, and the like. Each node includes a CAN interface and a reset circuit, which is responsive to the system controller for performing the specific node function and responding to controller commands. The reset circuit allows for reinitializing the node microcontroller on, e. g. , system startup, or on demand from the system controller or any other node on the CANBUS.

US Patent:

57729638, Jun 30, 1998

Filed:

Jul 30, 1996

Appl. No.:

8/688476

Inventors:

Luigi Cantatore - White Plains NY
Jeff Busch - Katonah NY
Maurice J. Epstein - Ardsley NY
Edward J. Hetherington - Brewster NY

Assignee:

Bayer Corporation - Tarrytown

International Classification:

G01N 3500

US Classification:

422 67

Abstract:

An analytic instrument utilizing a Control Arena Network (CANBUS) and nodal architecture in the instrument with functions and logic distributed throughout the Nodes. A system controller is connected on the one hand to an operator input device for controlling the instrument, and on the other hand to a plurality of nodes via a CAN scrambler. Each nodes has a CAN microcontroller and related circuitry for performing autonomously a variety of functions of the instrument. The system controller and nodes communicate using CAN interface devices over the CANBUS, passing instructions, commands and data therebetween.