Modbus protocol conversion device and multiple on-line centralized control system
A protocol conversion, centralized control system technology, applied in air conditioning systems, mechanical equipment, household heating, etc., can solve the problems of poor flexibility and high cost of online solutions, and achieve the effect of flexible use, cost control, and easy cost
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Embodiment 1
[0023] In order to centrally monitor each indoor unit in the multi-connected system more flexibly, so that it can be applied to both small-scale projects and large-scale projects, this embodiment relates to a Modbus protocol conversion device, which is used for multiple On-line, multi-online includes at least one outdoor unit and at least one indoor unit communicatively connected with each outdoor unit, the Modbus protocol conversion device includes at least one Modbus protocol converter, and the Modbus protocol converter has a device address number and a device address number The corresponding online range, where the online range corresponds to the maximum number of indoor units to be connected to each Modbus protocol converter; the Modbus protocol converter communicates with each outdoor unit and each indoor unit through the communication line to obtain the indoor unit The total number and the address of each indoor unit; according to the device address number, online range, ...
Embodiment 2
[0054] This embodiment also relates to a multi-line centralized control system, which includes a multi-line, a host computer, and a Modbus protocol conversion device. The multi-line includes at least one outdoor unit and at least one indoor unit communicatively connected to each outdoor unit. machine is used to monitor each indoor unit; the Modbus protocol conversion device is the Modbus protocol conversion device as described in Embodiment 1, and its structure and the online scheme with the indoor unit can refer to the description in Embodiment 1, and will not repeat them here . Each of the Modbus protocol converters in the Modbus protocol conversion device in this embodiment is connected to the upper computer through communication, so that the upper computer can monitor the indoor unit through the Modbus protocol converter.
[0055] In order for the upper computer to monitor each indoor unit conveniently, the upper computer needs to first find the Modbus protocol converter r...
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