A kind of air compressor machine remote monitoring and control device
Technical field
The utility model relates to remote monitor supervision area, particularly relates to a kind of air compressor machine remote monitoring and control device.
Background technology
Along with the progress of industrial automation level and the implementation of energy-saving and emission-reduction policy, pressurized air is widely used in the power source of large automatic equipment, and provides the pressurized air of reliable and stable high-quality also to become the key problem of industrial automation operation.
Air compressor unit is the nucleus equipment of compressed air system, and because compressor operation noise is large, installation site is limited; there is no staff on duty; air compressor machine occurs that the situation such as off-limit alarm and disorderly closedown can not be found in time, causes man power and material to waste, and cannot meet the demand of industrial automation.
For ensureing the running that automatic assembly line is safe and reliable, improving the robotization of control system, intellectuality and Humanization Level of Municipal, needing a set of long distance control system, remote monitoring and the control of air compressor machine can be realized.
Utility model content
The purpose of this utility model for a long time to the running status real time monitoring of air compressor machine and the problem of control, cannot provide a kind of air compressor machine remote monitoring and control device at present to solve.
The utility model adopts following concrete technical scheme:
A kind of air compressor machine remote monitoring and control device, which comprises at least:
A host computer; And a PLC, it is networked with the equal access network based on ethernet switch of host computer and communicates mutually; Described PLC comprises communication module, communication module is connected with Modbus protocol conversion server, described Modbus protocol conversion server is connected with air compressor controller, wherein, air compressor controller for controlling and detect the compression and decompression information of air compressor machine, and is sent to PLC by Modbus protocol conversion server; The dry contact of PLC is also direct to be connected with the contact controlled on the contactor coil of air compressor machine start and stop in air compressor machine electric loop.
Described communication module is connected with Modbus protocol conversion server by cable.
The beneficial effects of the utility model are:
(1) communication module of PLC of the present utility model is connected with Modbus protocol conversion server, and described Modbus protocol conversion server is connected with air compressor controller, for realizing Long-distance Control to air compressor machine and detection;
(2) dry contact of PLC of the present utility model is directly connected with the contact on the contactor coil of air compressor machine electric loop, can be used for controlling air compressor machine start and stop.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1. host computer, 2.PLC controller, 3.Modbus protocol conversion server, 4. air compressor controller, the contact on the contactor coil of 5. air compressor machine electric loop, 6. air compressor machine.
Embodiment
Be described in detail below in conjunction with accompanying drawing 1 pair of the utility model.
Embodiment one
As shown in Figure 1, a kind of air compressor machine remote monitoring and control device, comprise a host computer 1, for reading, processing and differentiate the compressor operation information that PLC 2 detects, and sends the loading of control air compressor machine, unloading and start and stop remote control command; And a PLC 2, itself and the equal access network based on ethernet switch of host computer 1 are networked and are communicated mutually; Described PLC 2 selects S7-1200, and it comprises communication module, and the communication module of PLC is connected with Modbus protocol conversion server 3, and described Modbus protocol conversion server 3 is connected with air compressor controller 4; Described PLC 2 is by the connection of point-to-point serial communication mode and communication module; The dry contact of PLC is directly connected with the contact 5 controlled in air compressor machine electric loop on the contactor coil of air compressor machine 6 start and stop; Air compressor controller for controlling and detect the compression and decompression information of air compressor machine, and is sent to PLC 2 by Modbus protocol conversion server; Described air compressor controller 4 is ELEKTRONIKON MKIV, and for controlling and detect the compression and decompression information of air compressor machine, this locality that can realize air compressor machine controls.
Described communication module is connected with Modbus protocol conversion server 3 by cable.
Embodiment two
A kind of air compressor machine remote monitoring and control device, comprise PLC 2, it selects S7-1200; The dry contact of described PLC is directly connected with the contact 5 on the contactor coil of air compressor machine electric loop, is used for controlling air compressor machine 6 start and stop; Air compressor controller 4 is ELEKTRONIKON MKIV, and for controlling and detect the compression and decompression information of air compressor machine, the CAN protocol communication supported by air compressor machine self is sent to PLC 2, and this locality realizing air compressor machine controls.
The course of work of the present utility model is:
Start working after this remote monitoring and control device are energized, when host computer 1 starts, because air compressor controller itself supports CAN protocol communication, by Modbus protocol conversion server 3, CAN protocol communication is converted to Modbus protocol, the operation information in PLC 2 pairs of air compressor controllers 4 reads, processes and differentiates; Air compressor controller is for controlling and detect the compression and decompression information of air compressor machine, and the dry contact of PLC is directly connected with the contact 5 controlled in air compressor machine electric loop on the contactor coil of air compressor machine 6 start and stop.
Host computer 1 is communicated with PLC 2 by wired local area network, read PLC 2 information, issue control command and remote parameter is set, the man-machine interface of host computer 1 realizes the operation information of air compressor machine and the displaying of warning message, thus the remote monitoring realized air compressor machine and controlling functions.
When host computer does not work, after the operation information of PLC 2 pairs of air compressor controllers 4 reads, processes and differentiates, dry contact by self is directly connected with the contact 5 on the contactor coil of air compressor machine electric loop, be used for controlling air compressor machine 6 start and stop, control with this locality realizing air compressor machine.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.