Device and method for discrete signal conditioning
First Claim
1. A circuit card assembly connectable to a system, the circuit card assembly comprising:
- a plurality of system connections;
circuitry coupled to the plurality of system connections and capable to receive a plurality of signals from the plurality of system connections, the circuitry includingmonitoring circuitry capable to receive one of the plurality of signals, and to generate a monitor signal based on the signal received by the monitoring circuit;
interrupt circuitry capable to receive one of the plurality of signals, and to interrupt the signal received by the interrupt circuitry;
override circuitry capable to receive one of the plurality of signals, and to override the signal received by the override circuitry with an override signal; and
pass-through circuitry capable to receive one of the plurality of signals, and to pass the signal received by the pass-through circuitry.
1 Assignment
0 Petitions
Accused Products
Abstract
A circuit card assembly provides signal conditioning for signal discretes in control systems integrating a legacy, distributed processing architecture and a distributed I/O control system. Signal conditioning functions are determined, and the necessary physical circuits to perform the signal conditioning functions are incorporated into a circuit card. The Integrated Signal Conditioning Circuit Card Assembly is installed within the control system between legacy controllers and distributed I/O modules. The Integrated Signal Conditioning Circuit Card Assembly may leave any discrete signal unaltered or otherwise condition discretes with interrupt, interrupt on demand, over-ride, and monitor circuits. The centralized processor accesses and controls the conditioned discretes transmitted over a common hardware connection for use in system feedback and control.
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Citations
22 Claims
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1. A circuit card assembly connectable to a system, the circuit card assembly comprising:
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a plurality of system connections; circuitry coupled to the plurality of system connections and capable to receive a plurality of signals from the plurality of system connections, the circuitry including monitoring circuitry capable to receive one of the plurality of signals, and to generate a monitor signal based on the signal received by the monitoring circuit; interrupt circuitry capable to receive one of the plurality of signals, and to interrupt the signal received by the interrupt circuitry; override circuitry capable to receive one of the plurality of signals, and to override the signal received by the override circuitry with an override signal; and pass-through circuitry capable to receive one of the plurality of signals, and to pass the signal received by the pass-through circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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a device a controller; a circuit card assembly including a first plurality of discrete connections, a second plurality of discrete connections, and a plurality of circuits, each of the plurality of circuits electrically coupling a respective one of the first plurality of discrete connections to a respective one of the second plurality of discrete connections, one of the first plurality of discrete connections being coupled to one of the device and the controller, and the respective one of the second plurality of discrete circuit connections being coupled to the other of the device and the controller, the plurality of circuits including a monitor circuit capable to receive a first signal and generate a monitor signal based on the first signal, an interrupt circuit capable to receive a second signal and interrupt the second signal, an override circuit capable to receive a third signal and to override the third signal with an override signal, a pass-through circuit capable to receive a fourth signal and to conduct the fourth signal through the pass-through circuit. - View Dependent Claims (11, 12, 13, 14)
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15. A method of operating on a plurality of signals of a system, the system including a circuit card assembly having at least eight system connections, the method comprising:
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establishing the first, second, third, fourth, fifth, sixth, seventh, and eighth, system connections of the circuit card assembly; receiving a first signal through the first system connection; monitoring the first signal; communicating the first signal through the second system connection; receiving a second signal through the third system connection; interrupting the second signal; communicating the second signal through the fourth system connection based on an absence of the interrupting of the second signal; receiving a third signal through the fifth system connection; receiving an override signal; overriding the third signal with the override signal; communicating the third signal through the sixth system connection based on an absence of overriding the third signal; communicating the override signal through the sixth system connection based on the overriding the third signal; receiving a fourth signal through the seventh system connection; and communicating the fourth signal at the eighth system connection. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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Specification