Beckhoff is headquartered in Weil, Germany. The company always takes the new automation technology based on PC as its development concept. The industrial PCs, field bus modules, drive products and TwinCAT automation software produced by the company constitute a complete and compatible control system, which can provide an open concept for various industrial control areas. Automation system and complete solution.
Beckhoff's main products1, Industrial PC
Beckhoff offers suitable industrial PCs for a variety of applications. Based on open standards for high-quality components and individual chassis design, these industrial PCs are the ideal configuration for a variety of control needs. The embedded controller is a modular controller that is more compact and suitable for DIN rail mounting. The self-developed motherboard enables Beckhoff to respond faster to new technologies and customer requirements in the PC market.
2, I/O
Beckhoff's automation technology is suitable for a wide variety of signal and fieldbuses, providing a full range of fieldbus components for all common I/O signals and fieldbus systems. EtherCAT is an Ethernet solution for industrial automation with excellent performance and simple operation. Beckhoff offers a wide range of I/O systems including the IP20 EtherCAT Terminal Module and the IP67 EtherCAT Box. The bus terminal module (IP20) and the bus terminal box module (IP67) are independent of the fieldbus and enable open control technology.
3, motion control
In conjunction with the motion control solutions offered by the TwinCAT automation software, Beckhoff drive technology represents a leading and comprehensive drive system technology. PC-based control technology from Beckhoff is ideal for highly dynamic single-axis and multi-axis positioning tasks. The AX5000 servo drive series with high-performance EtherCAT system communication offers outstanding performance and dynamics. Servo motors using single cable technology integrate the power supply and feedback system into a standard motor cable, reducing material and commissioning costs.
4, automation software
Beckhoff offers comprehensive system solutions with different levels of performance for all areas of automation. Beckhoff's control technology is scalable – from high-performance industrial PCs to mini-PLCs – and can be precisely adapted to the specific application. TwinCAT automation software integrates a real-time control system with PLC, NC and CNC functions in one package.
Beckhoff products are open control systems based on PC control technology. The product range includes industrial PCs, fieldbus components, drive technology and automation software. These products can be used as stand-alone components, or they can be integrated into a complete control system, suitable for use in various industry sectors.
The products of the same benchmark of Beckhoff products are the automation products that the competitors are mainly European and American first-line brands, such as Siemens, AB, etc. Hereinbelow, we analyze the characteristics of each component of Beckhoff products by comparison:
1, Beckhoff fieldbus product technology has many successful projects in the country, support IE61131-3 standard PLC language, support LIGHTBUS, ProfiBUS, InterBUS, CANopen, DeviceNet, ControlNet, Modbus, SERCOS, RS485, RS232 and EthernetTCP/IP, USB, as well as fieldbuses such as ProfiNET, CC-Link, and EtherCAT, can integrate different fieldbus protocols into one controller, and can select different bus systems according to requirements. All kinds of bus systems use a unified programming language. Product configuration is flexible, powerful, precise configuration I / O points, fully consider the overall cost of the user's overall program, save a lot of wiring and space, to provide users with perfect pre-sale service and technical support!
2. All kinds of I/O are commonly used in all fieldbus systems, but field bus couplers with different protocols provide different types of fieldbus to facilitate long-term application and selection of products. Various I/O terminals, including 2-, 4-, and 8-point digital signals (5VDC\24VDC\48VDC\120VDC\230VDC\NAMUR\high-speed counters, etc.), analog (0-10V, ±10V, 0-20mA) , 4-20mA thermocouple, thermal resistance, resistance bridge, can be connected to the oscilloscope and directly connected to the 5/1A current transformer, it can carry out network analysis and power supply management through the field bus system, collect current, voltage, effective power, apparent Power and power factor cosφ, 64,000 samples per second calculated RMS, its measurement accuracy can reach 0.1% of the full scale value, widely used in the power supply and distribution system for grid parameters; also can control the following 5.5KW motor, By controlling the motor through the fieldbus, the current, voltage, effective power, apparent power and power factor cosφ, as well as the number of on and off times of the motor can be collected and related protection can be performed.
3, using Beckhoff's products, users can combine different types of signals in each station unlimited, each terminal at least 2 points, there are also 4 and 8 points, easy for you on the required I / O points Make precise configurations so that almost all points are used, reducing idle points to reduce costs.
4. The cage spring connection technology can provide you with a new convenient and reliable connection method, change the connection defects of the traditional screw terminals, prevent vibration and maintenance, prevent the wiring from loosening for a long time or under long-term vibration environment, resulting in virtual connection. The risk of disconnection.
5. The I/O terminal module used has a maximum of 8 I/O points per block. If some point is damaged during the application or debugging, the module can be directly replaced with spare parts. The program of the upper computer does not need to do anything. Changes can be put into normal operation. This facilitates maintenance, reduces maintenance workload, and reduces costs.
6. The German Beckhoff I/O terminal is an open type, does not depend on the peripheral equipment at the scene, and the various I/O terminals are mutually arranged to form a terminal strip. The total brain of the terminal is a coupler with a bus interface. In this way, a modular component design is adopted in the entire system, components can be quickly replaced during maintenance, user-friendly maintenance and conversion of products of different specifications, each bus coupler can diagnose whether the terminal is damaged, in order to facilitate fault diagnosis, help Users implement preventative maintenance.
7. Robust housing, safe and reliable contacts and stable electronic components are the hallmarks of Beckhoff products.
8, Germany Beckhoff fieldbus module does not need to install the floor, direct DIN rail card installed, the module through K-BUS or E-BUS communication, communication is reliable, this can prevent dust from falling on the bottom plate during maintenance and installation, resulting in floor Poor communication with I/O module.
9, the German Beckhoff Fieldbus and TwinCAT automation software in accordance with IEC61131-3 programming language can provide you with a complete, compatible control system, provide an open automation solution, can also be with other manufacturers of instruments or Control systems are compatible with each other. In this software, it is possible to monitor or simulate the value changes and waveforms of various variables (including intermediate variables, switching quantities, and analog types of various types) online or offline, ie with data tracking, oscilloscopes, and worldwide implementations via TCP/IP. Connect remotely and integrate related micro software standards (OCX and DLL).
10. These remote I/Os range from bus terminals of IP20 protection class to bus short box modules of IP67 protection class.
In addition to the above advantages and features, Beckhoff’s IPC solution is equipped with a TwinCAT development platform with complete control functions. Its features are: Multi-controllers with real-time control capability (up to 4 sets, each with 4 tasks The minimum mission cycle time is up to 50 microseconds. Fieldbus that fully supports more than 90% market share: LIGHTBUS, ProfiBUS, InterBUS, CANopen, DeviceNet, ControlNet, Modbus, SERCOS, RS485, RS232 and Ethernet TCP/IP, USB, ProfiNET, CC-Link and EtherCAT. TwinCAT is fully integrated
11, Benefac PLC embedded PC controller advantages: Hardware technology update time is gradually reduced, software operating system platform technology is developing rapidly, IPC's overall operating speed and computing power is super. Peripheral interface devices have many forms, a wide range, and powerful functions; they have internet/intranet networking capabilities, can easily implement human-computer interaction functions, and create ERP systems; their remote control, monitoring, and diagnostic capabilities are gradually enhanced, and even become deadly weapons against other control schemes. Advanced control algorithms, extensive database operations, complex process simulation, memory requirements PLC specifications, multiple protocol interfaces, and wireless access.
In addition to the above advantages and features, Beckhoff’s IPC solution is equipped with a TwinCAT development platform with complete control functions. Its features are: Multi-controllers with real-time control capability (up to 4 sets, each with 4 tasks The minimum mission cycle time is up to 50 microseconds. Fieldbus that fully supports more than 90% market share: LIGHTBUS, ProfiBUS, InterBUS, CANopen, DeviceNet, ControlNet, Modbus, SERCOS, RS485, RS232 and Ethernet TCP/IP, USB, ProfiNET, CC-Link and EtherCAT. TwinCAT fully integrates PLC/NC, PTP/NC, and I/CNC/HMI functions into one, and the powerful software architecture enables the adaptability of its application capabilities to be very powerful. It can easily integrate third-party products into the system. The design concept of media such as hard disks and fans has been updated, and the need for rotating media has improved the reliability and practicality of IPC. The use of headless IPC control technology has updated people's traditional control concepts. Developed EtherCAT real-time Ethernet protocol supporting high-speed I/O.
What is the main difference between Beckhoff PLC and Siemens?Beckhoff's PLC is mainly based on PC. Generally, we call it SOFTPLC. SoftPLC is a real-time multi-task control kernel running on an industrial PC. It has all the features of a "hard" PLC, but also has its own characteristics, that is, an open architecture system. . Unlike traditional PLCs, PLCs based on computer technology can run faster and handle much faster. Traditional PLCs can take a few hundred milliseconds and one cycle, while PC-based PLCs can be completed in tens of microseconds. This kind of soft PLC programming language is generally not developed by oneself (CodeSys of Germany 3S company, OPENPCS of German Infoteam Company, German Covey software MULTIPROGExpress).
Siemens's software was developed by itself, and 200 PLC was acquired by other companies (even PLC and software bought together), 300/400 PLC, all developed by Siemens (PCS7).
1, programming environment
BECKHOFF: TwinCAT fully supports IEC61131-3 programming language, has PLC and NC function, provides VB\C++ and other third-party interfaces, fully supports WINDOWS standard DDE\ADS\OPC and other communication, it is easy to integrate with third-party software (for example, HMI configuration software). Note: The entire series is written using TwinCAT software.
SIEMENS: STEP7 is only for S7 series PLC programming, S7-200PLC uses STEP7MicroWIN, S7-300/400PLC uses STEP7Basic, S5-UPLC uses STEP5Basic; they are incompatible with each other.
2, I/O module
BECKHOFF: EtherCAT's EL bus modules are removed and all KL series bus terminal modules are used. The user's spare parts are simple and convenient with a small number (true field-level terminals, 0-55°C).
SIEMENS:S5\S7-200\300\400 series PLCs use their own I/O modules. The I/O modules of each series are not compatible. The user's spare parts are difficult and many types.
3, system upgrade
BECKHOFF: Since the system uses a unified KL or EL series bus terminal and the internal use of a unified K-BUS or E-BUS bus connection, the controller (also called CPU) upgrade is very easy, (BECKHOFF controller from BC-BX-CX - IPC, features are smaller and stronger. Third-party controllers are available via external standard fieldbus.
SIEMENS: S5 upgrade S7, S7-200 upgrade S7-300, upgrade or replace? This everyone is more clear, upgrade means the replacement of the entire system, very inconvenient.
4, field bus
BECKHOFF: Fieldbus that fully supports more than 90% market share: LIGHTBUS, ProfiBUS, InterBUS, CANopen, DeviceNet, ControlNet, Modbus, SERCOS, RS485, RS232 and Ethernet TCP/IP, USB, ProfiNET, CC-Link and EtherCAT etc. .
SIEMENS: Only ProfiBUS is supported.
5, the system's openness
BECKHOFF: Open Control System Based on PC Technology
SIEMENS: Open system is a big trend, Siemens will inevitably go, but for the Chinese market, because of the old tradition of PLC constraints, Siemens will gradually change in this direction.
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