Four-way analog input device based on CIB-BUS bus

Abstract

The invention discloses a four-way analog input device based on a CIB-BUS bus. The input device comprises a control bus, a DC power source, a bus coupler, a main chip, a ten-bit D / A conversion circuit and a four-way analog input conversion circuit, wherein the control bus is connected with the bus coupler, the bus coupler is connected with the main chip, the DC power source is separately connected with the control bus, the bus coupler and the main chip, the main chip is further connected with the ten-bit D / A conversion circuit, and the ten-bit D / A conversion circuit is connected with the four-way analog input conversion circuit. The input device is advantaged in that the control bus is employed, four-way independent analog input detection can be realized, 0-5 / 10V and 4-20mA standard input signals can be received, ten-bit A / D conversion precision is realized, association control on AI values can be set, any output equipment associated with the input device can be controlled, software calibration of detection values can be realized, and an automatic report threshold value can be set.

Description

technical field [0001] The invention relates to the technical field of electric automation control, in particular to a four-way analog quantity input device based on a CIB-BUS bus control mode. Background technique [0002] CIB-BUS bus is a field bus technology, which is used to integrate central air-conditioning, electrical switches, lighting, energy management, video surveillance, security protection, environmental monitoring and other equipment in buildings, through a unified bus network structure and The control platform realizes the centralized monitoring and management of these devices. [0003] The bus-based analog input device in the prior art cannot realize 4 independent analog input detections, cannot set associated control for AI values, and cannot control associated output devices. [0004] For example, Chinese patent document CN201156201Y discloses an analog quantity input device based on CAN bus, which includes a housing 1, a circuit board 2 and an electrical ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the bus-based analog input device cannot realize 4 independent analog input detections, cannot set associated control for AI values, and cannot control associated output devices

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