Intelligent self-diagnosis digital input terminal board and method

Abstract

The invention discloses an intelligent self-diagnosis digital input terminal board and a method. The terminal board comprises an external equipment input signal wiring terminal XS1, a power module EM, a D-type socket XS2, and a first input channel CM0, a first intelligent diagnosis module DM0, a second input channel CM1, a second intelligent diagnosis module DM 1, a third input channel CM2, a third intelligent diagnosis module DM2, a fourth input channel CM3, a fourth intelligent diagnosis module DM3, ..., one by one until a sixteenth input channel CM15 and a sixteenth intelligent diagnosis module DM15 which are connected with the external equipment input signal wiring terminal XS1. The invention also discloses a terminal board intelligent self-diagnosis method. The terminal board is simple in structure, employs sixteen mutually independent input channels, can carry out real-time diagnosis and alarm on on-off of a circuit connected with external equipment and has high safety and reliability.

Description

technical field [0001] The invention relates to the technical field of power plant control systems, in particular to an intelligent self-diagnosis digital input terminal board and a method thereof. Background technique [0002] The traditional digital input terminal board of the distributed control system cannot perform real-time diagnosis and alarm for the on-off of the external access circuit, requires manual intervention and measurement, and has high cost, complex circuit, few channels, poor isolation performance, and easy damage. On this basis, an intelligent self-diagnosis digital input terminal board and method are proposed. Contents of the invention [0003] In order to solve the problems existing in the above-mentioned prior art, the object of the present invention is to provide an intelligent self-diagnosis digital input terminal board and its method. Real-time diagnosis and alarm for the on and off of the external equipment circuit, with high safety and reliabil...

AI Technical Summary

Problems solved by technology

[0002] The traditional digital input terminal board of the distributed control system cannot perform real-time diagnosis and alarm for the on-off of the external access circuit, and requires manual intervention and measurement, and the cost is high, the circuit is complex, the channel is small, the isolation performance is poor, and it is easy to damage

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