초록 ▼

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

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.

대표청구항 ▼

[ We claim:] [1.] A method for utilizing a control area network (CANBUS) in operating an analytical instrument, comprising:providing an operator input device to initiate analysis of a test sample;providing a system controller connected to the operator input device;providing at least a first node and

[ We claim:] [1.] A method for utilizing a control area network (CANBUS) in operating an analytical instrument, comprising:providing an operator input device to initiate analysis of a test sample;providing a system controller connected to the operator input device;providing at least a first node and a second node, each node containing a microprocessor and circuitry responsive to said microprocessor to perform a function related to said analytical instrument operation, wherein said first and second nodes are operable to perform different functions;connecting the system controller to a CANBUS Interface circuit;connecting the CANBUS Interface to a CANBUS scrambler circuit;connecting each of said first and second nodes to the CANBUS scrambler;utilizing a CANBUS protocol to enable communications between each of said nodes and the system controller;connecting a power supply to the CANBUS; andoperating the at least first and second nodes under the control of said system controller using said CANBUS so that each node operates to perform its function independently of the operation of other node.