CN205121257U

CN205121257U - Water supply equipment serial ports reading and writing principal and subordinate control system

Info

Publication number: CN205121257U
Application number: CN201520841973.8U
Authority: CN
Inventors: 张明亮; 张清华; 张玉栋
Original assignee: Qingdao Bolier Machinery Equipment Co Ltd
Current assignee: Qingdao Bolier Machinery Equipment Co Ltd
Priority date: 2015-10-28
Filing date: 2015-10-28
Publication date: 2016-03-30
Anticipated expiration: 2025-10-28

Abstract

The utility model provides a water supply equipment serial ports reading and writing principal and subordinate control system is by main CPU module, main extension module, the main unit that supplies water, follows the CPU module, follows extension module, follows the water supply unit and take the principal and subordinate serial module of serial ports reading and writing function to constitute characterized by: main CPU module links to each other with main extension module and the main unit that supplies water, follows the CPU module and follow extension module and follow the water supply unit to link to each other, takes the principal and subordinate serial module and the main CPU module and continuous from the CPU module of serial ports reading and writing function. The beneficial effects of the utility model are that, increasing the principal and subordinate serial module that takes serial ports reading and writing function, just can realizing principal and subordinate's communication through simple hardware disposition, sexual valence when reliability is higher.

Description

Supply equipment serial ports read-write master & slave control system

Technical field

The utility model relates to a kind of master & slave control system, specifically a kind of supply equipment serial ports read-write master & slave control system.

Background technology

At present, the supply equipment master & slave control system that society uses, generally all adopts and carries out communication by increasing ethernet module, when two complete equipments are in same pump house, carry out master-slave communication by the mode increasing ethernet module, price is higher, programming and debugging complexity, reliability is low.

Utility model content

In view of the deficiency that above-mentioned prior art exists, the supply equipment serial ports read-write master & slave control system that the utility model provides, increase principal and subordinate's serial port module of band serial ports read-write capability, just can realize master-slave communication by simple hardware configuration, sexual valence when reliability is higher.

The present utility model solves the technical scheme that its technical matters adopts: supply equipment serial ports read-write master & slave control system is by host CPU module, main expansion module, main water supply unit, from CPU module, from expansion module, form from principal and subordinate's serial port module of water supply unit and band serial ports read-write capability, host CPU module is connected with main water supply unit with main expansion module, be connected with from water supply unit from CPU module with from expansion module, principal and subordinate's serial port module of band serial ports read-write capability is connected with from CPU module with host CPU module.

Beneficial effect of the present utility model is, increase principal and subordinate's serial port module of band serial ports read-write capability, just can realize master-slave communication by simple hardware configuration, sexual valence when reliability is higher.

Accompanying drawing explanation

Accompanying drawing 1 is principle assumption diagram of the present utility model.

In figure 1, host CPU module, 2, main expansion module, 3, main water supply unit, 4, from CPU module, 5, from expansion module, 6, from water supply unit, 7, principal and subordinate's serial port module of band serial ports read-write capability.

Embodiment

With regard to accompanying drawing 1, following detailed description is done to supply equipment serial ports read-write master & slave control system of the present utility model below.

As shown in Figure 1, supply equipment serial ports read-write master & slave control system of the present utility model is by host CPU module (1), main expansion module (2), main water supply unit (3), from CPU module (4), from expansion module (5), form from principal and subordinate's serial port module (7) of water supply unit (6) and band serial ports read-write capability, host CPU module (1) is connected with main water supply unit (3) with main expansion module (2), be connected with from water supply unit (6) from CPU module (4) with from expansion module (5), principal and subordinate's serial port module (7) with serial ports read-write capability is connected with from CPU module (4) with host CPU module (1).

Under normal circumstances, main water supply unit is controlled by host CPU module, control from water supply unit by from CPU module, when not meeting water supply requirement after main water supply unit operation, host CPU module is passed to information from CPU module by principal and subordinate's serial port module of band serial ports read-write capability, controls from water supply unit starting from CPU module.

When host CPU module breaks down, send data cannot to principal and subordinate's serial port module of band serial ports read-write capability, principal and subordinate's serial port module with serial ports read-write capability is judged as host CPU module failure, then giving from CPU module to the control of main supply equipment, by controlling main supply equipment from CPU module and from supply equipment.

When breaking down from CPU module, send data cannot to principal and subordinate's serial port module of band serial ports read-write capability, principal and subordinate's serial port module with serial ports read-write capability is judged as from CPU module fault, then give host CPU module to the control from supply equipment, control main supply equipment by host CPU module and from supply equipment.

It should be noted that, above embodiment is only unrestricted for illustration of the technical solution of the utility model, the technical solution of the utility model is modified or equivalent replacement, and do not depart from the spirit and scope of the technical solution of the utility model, all should be encompassed in the middle of right of the present utility model.

Claims

1. supply equipment serial ports read-write master & slave control system is by host CPU module, main expansion module, main water supply unit, from CPU module, from expansion module, form from principal and subordinate's serial port module of water supply unit and band serial ports read-write capability, it is characterized in that: host CPU module is connected with main water supply unit with main expansion module, be connected with from water supply unit from CPU module with from expansion module, principal and subordinate's serial port module of band serial ports read-write capability is connected with from CPU module with host CPU module.