An Improved Long Distance Belt Conveying System Based on PLC Network Communication
A technology of belt conveying and network communication, applied in the direction of ring network, data exchange through path configuration, comprehensive factory control, etc., can solve problems such as shutdown, the entire line of belt conveyors cannot operate normally and continuously, and motor protector communication errors, etc.
Active Publication Date: 2019-01-15
MCC5 GROUP SHANGHAI CORPORATION LIMITED
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Problems solved by technology
[0011] However, during the network communication process of the full-line PLC system, the touch screens of ER10 and ER11 in the electrical room could not be connected to the communication network of the entire PLC system, and during the no-load linkage trial operation of the whole line, a certain section of the belt conveyor suddenly stopped during operation Phenomenon, at this time, there is a communication error fault on the motor protector, causing the belt conveyor of the whole line to fail to run normally and continuously
[0012] Therefore, there are above-mentioned inconveniences and problems in the PLC system network communication process of the known belt conveyor conveying system
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Embodiment 1
[0028] The UAE Fujairah SL2 belt conveyor conveying system project adopts PLC network communication. The project is located in Fujairah Port, UAE. The total length of the belt conveyor is 4.5 kilometers. The project consists of 1 truck dump station, 10 transfer stations, 10 belt conveyors, There are 9 electrical rooms, namely ER18, ER17, ER16, ER15, ER14, ER13, ER12, ER11, ER10.
[0029] The communication network of the PLC system adopts the PORFIBUS-DP field bus linear topology network, which is respectively connected by the PLCs in the electrical room ER18, ER17, ER16, ER15, ER14, ER13, ER12, ER11, and ER10, among which the electrical room ER18 PLC It is set as the master station of the entire PLC system, and there is a PLC processor inside it, the model is Siemens S7-200, and the PLCs in other electrical rooms are set as slave stations of the PLC system, which are remote input / output. PLC system composition: the PLC in the adjacent electrical room is connected to the optica...
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The invention discloses an improved long-distance belt conveying system based on PLC network communication. The system comprises a mine transport PLC system, and is characterized in that a PLC system processor of an electrical room ER18 is a Siemens S7-400PLC; nine touch screens of the electrical room and electrical rooms ER18, ER17, ER16, ER15, ER14, ER13, ER12, ER11 and ER 10 are connected through a multimode optical cable to form a redundancy loop network; a PLC communication module is arranged on the PLC of the electrical room ER18 so as to realize communication with a PLC system network; the PLC of each electrical room is provided with an Ethernet switch; and the touch screens and the Ethernet switches are connected by use of Ethernet wires so as to form a redundancy loop Ethernet communication network. The system provided by the invention has the advantages of enabling whole-line belt conveyors to run continuously and enabling the touch screens of the electrical room ER11 and ER10 to be connected with the communication network.
Description
technical field [0001] The invention relates to a belt conveying system, in particular to an improved long-distance belt conveying system based on PLC network communication. Background technique [0002] Chinese patent CN201796276 U disclosed a belt control system with PLC remote station on April 13, 2011, including system PLC, PLC remote station, belt conveyor operation box, system PLC and PLC remote station through network communication, PLC remote station The station is connected with the belt conveyor operation box through a control cable. Although the control signal of this belt control system is transmitted through the communication cable, which avoids the attenuation of the control signal caused by the cable being too long, but it uses the ControlNet network communication cable. When there are too many Scheduled nodes, the scheduled time period will inevitably be extended, and the NUT will also If it becomes larger, the time delay of the system will increase and the ...
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IPC IPC(8): H04L12/42G05B19/418
CPCY02P90/02
Inventor 周建建黄胜军王俊芳刘建均唐冬云钱弈江吴键吴寒君何平申洁
Owner MCC5 GROUP SHANGHAI CORPORATION LIMITED