1. Overview
vertical sorting machine is a modern logistics system, an important part, while the material in a continuous multi-port multi-layer vertical sorting. Automation, information technology and system integration is easy to control the logistics industry development trend. For these purposes, provide a small controller Schneider Electric Twido total solution for the center.
through the Twido controller built-in Ethernet communication port, and host real-time monitoring machine data exchange. The system control process under both the characteristics of the distributed configuration at each I / O control module, through the control bus and the Twido CANopen distributed host communications, constitute convenient, reliable and distributed I / O control system.
2. features of this system
1) Schneider TWDLCAE40DRF controller built-in Ethernet communications mouth, can easily be Ethernet communications, high communication speed (100 / M, 10 / M) to PLC and PC data real-time exchange easier. While the built-in Ethernet port to PLC and PC hardware configuration without adding any additional cost, the economic performance is excellent.
2) control system s modular structure and standard interfaces. Distributed application Twido I / O function to facilitate the realization of the modular control system, standardization. Distributed control standard on each selected I / O unit (based on CANopen distributed unit : OTB1C0DM9LP), a distributed bus architecture to enable hardware wiring and software programming more simple and easy. The modular structure allows control of the system has strong expansion capability.
3) Schneider Twido programmable controllers and distributed Ethernet I / O structure, the system of standardization possible. The characteristics of logistics control, vertical sorting machine as a module of the system, need to set aside standard interface, ibid ??? machine monitoring systems in real time data exchange, and field Jiance component base interfaces. Set aside the entire system standard interface, with a strong compatibility.
3. system process description
vertical sorting machine function is to achieve continuous multi-port multi-layer vertical sorting of materials. Rising through the lifting mechanism, decrease the turning motion. Materials in the specified layer, mouth into the sorting machine in a division. With the partition of the upgrade, down movements to reach a specified level, the mouth, under the host computer or programmable device settings, the material sent from the hoist into the conveyor belt. The entire process to the next link.
sorting machine control system by the host computer (or HMI), Twido controllers, field bus CANopen Distributed I / O modules, and inverter, encoder form.
Vertical sorting machine control system architecture diagram is as follows:
Control flow statement (see diagram):
(1) main work flow is as follows: divided into two parts, materials and the materials for parallel processing
(2) control data set: According to system requirements, external system via the network from the main control unit to set the data transmission via Ethernet to the Twido controller. Can also be soft machine by the host computer directly under the process set.
(3) control of implementation: material sent by the conveyer belt at the entrance, PLC acquisition host computer information, or according to internal logic control, the materials into the elevator to reach the designated position, while the location of the material and the partition binding, with the partition of the campaign, PLC shift within the same time series processing. Exports rise elevator to reach the specified cylinder, send materials to export.
4. control requirements analysis and implementation
1) based on the characteristics of the logistics industry, require control systems with information, the modular and distributed control and allow standard interfaces. Schneider Twido controller, through the built-in Ethernet, MODBUS communication port and the function of the fieldbus functionality to facilitate the realization of the above.
2) elevator safety and reliability of the work. The system speed work, the low failure rate is theControlled premises, through the different components to achieve safety testing the stability of the system. Include: Import, export and the location of test materials; material into the elevator position detection; elevator position detection within the working cylinder; and the materials are completely sent the location of detection. Also configure the encoder sensors detect the security partition.
3) materials and location of the binding process partitions:
Materials from the designated entrance, and also to bind the partitions. The data register function using Twido can easily achieve this functionality.
Each partition corresponds to data bind a shift register, 16 partitions and 16 correspond to the data registers, register with the diaphragm parallel with an increase series shift.
Corresponding to partition a data register 1:
register a 16-bit (BIT), pre-defined the meaning of each bit: including goods imported information, specify the export of information, the location of the current partition state information.
example: 2 # entry entry, the corresponding partition No. 5, exit 4 #, the corresponding partition number 10, the current diaphragm position from the beginning of partition 0 # 5 # position. The corresponding data register value:
elevator work, raise a location for each partition, the data register value plus 1 (plus the current partition number 1). The current partition number is equal to the partition number of export goods (ie export of four partitions corresponding to position 10), the goods in the export output, while clearing register 0, indicate that there is no partition bound cargo.
Twido programmable controller has latched function of the power is turned on, the system continue to function normally, no manual, remove the cargo elevator. Greatly increase productivity.
5. System Summary
vertical sorting machine control system solutions for Schneider, Twido programmable built-in Ethernet communication port, MODBUS communication port, but also has distributed I / O bus capabilities to achieve the sorting machine information control system, modular and distributed control and set aside the standard interface requirements. Economy is also more reasonable. Schneider family good compatibility and excellent performance makes control products become more simple, efficient and stable.