The counting process of the ordinary counter in PLC is related to the scanning operation mode. The CPU captures the rising edge of the measured signal by reading it once per scanning cycle. When the frequency of the measured signal is high, the counting pulse will be lost. Therefore, the maximum operating frequency of ordinary counters is generally only a few tens of hertz. High speed counter (HSC) can count events that occur faster than the execution rate of program loop OB.   High speed counters are generally used in conjunction with incremental encoders, where each count pulse or reset pulse emitted by the latter serves as the input signal for the high speed counter. There are several types of encoders. (1) Incremental encoder The encoder disc of the photoelectric incremental encoder has uniformly engraved gratings. When the encoder rotates, it outputs pulses proportional to the increment of the rotation angle, and a counter is needed to count the number of pulses. The single channel incremental encoder has only one pair of optocouplers inside, which can only generate one pulse train. A dual channel incremental encoder, also known as an A/B phase or quadrature phase encoder, has two pairs of photosynthetic devices internally and outputs two independent pulse trains with a 90 ° difference. The leading and lagging relationships of the two pulses during forward and reverse rotation are opposite. If an A/B phase encoder is used, the PLC can recognize the direction of shaft rotation and the output waveform of the A/B phase encoder. Input points used by high-speed counters The system manual of S7-1200 provides the default digital input points for HSCI-HSC6 of various CPU models when referring to humans in single-phase, two-phase, and A/B phases, as well as the highest counting frequency for each input point in different counting modes. The data type of the actual count value of HSC1-HSC6 is DInt, and the default address is ID100-ID1020. (1) The working mode of HSC All HSCs have 5 high-speed counting operating modes: a single-phase counter with internal directional control, a timer with external directional length control, a biphase counter with two input channels of the clock, an AB phase orthogonal counter, and a monitoring P1O output. Each HSC mode can use or do not use a support input. When the reset input is in the 1 state, the kinetic energy of the HSC's real count value can only start counting when it reaches the point where the reset input becomes the port. The maximum measurable single pulse frequency is 100 kHz, and the maximum frequency for dual phase and A/B phase can be 30 kHz. The high-speed counter can be connected to an external rotary encoder, and users can use this function in software by configuring the PLC hardware and calling relevant instructions. (1) Hardware Configuration of HSC Open the device view of the PLC and select the CPU within it. Select the "General" high-speed counter HSC1 on the left side of the "Properties" tab in the inspection window, and check the checkbox "Enable this high-speed counter". Select the 'Function' in the left window, set the 'Count Type' to 'Count', select the 'Work Mode' as the external direction control of the A/B phase counter, and set the initial counting direction to 'Add Count'. Select "Hardware Input" in the left window and set the "Input for Clock Generator Phase A" address to 10.0, and the "Input for Clock Generator Phase B" address to 10.1. Select "I/O Address" in the left window. The default address of HSC1 is ID1000, which can be used to monitor the count value and hardware configuration of HSC1 during runtime. (2) Set the filtering time for digital input The default filtering time of the input filter for the digital input channels of the CPU and signal board is 6.4 ms. If the filtering time is too long, it is easy to filter out the input pulses during the filtering cycle. For the digital input of high-speed counters, set the corresponding digital input filter using the expected minimum pulse width. The shorter filtering time in the input filtering time list for CPU digital input can be selected, such as 0.1 ms. If the width of the input pulse is changed, the filtering time of the input filter should also be changed.   6SN1118-0BK11-0AA0 6GK1100-0AT01 6GK1611-0TA01-1BV0 6GK1415-0AA01 6ES7292-1AF20-0AA0 6SN1118-0NH01-0AA0 6GK1100-0BA00 6GK1900-0KL00-0AA0 6GK1704-5DW60-3AA0 6ES7290-2AA00-0XA0 6SN1118-0NH01-0AA1 6GK1100-2AB00 6GK7443-5FX01-0XE0 6GK1970-1TA43-0AA2 6ES7298-0AA20-0AA3 6SN1118-0DA11-0AA0 6GK1100-2AC00 6GK1611-0TA01-1BX0 6GK1415-2AA00 6ES7291-8BA00-0XA0 6SN1118-0DA12-0AA0 6GK1101-0AA01 6GK1901-0AA00-0AA0 6GK1704-5DW61-3AA0 6ES7292-1AG20-0AA0 6SN1118-0NH10-0AA0 6GK1101-0AB01 6GK7443-5FX02-0XE0 6GK1970-1TA43-0AA4 6ES7290-2BA00-0XA0 6SN1118-0NH10-0AA2 6GK1102-0AA00 6GK1611-0TA01-1DV0 6GK1415-2AA01 6ES7298-0AA20-0BA3 6SN1118-0DA13-0AA0 6GK1102-0AB00 6GK1901-0AA00-0AC0 6GK1704-5DW62-3AA0 6ES7291-8BA20-0XA0

In the field of industrial control, PLC, DCS, and microcontroller are three crucial technologies. They have significant differences in many aspects and play a huge role in their respective fields. The following is a detailed comparison of these three technologies. 一、PLC （Programmable Logic Controller） PLC is a digital operation system designed specifically for industrial environments. It adopts a programmable memory that can perform logical operations, sequential control, timing, counting, and arithmetic operations, and control various types of mechanical or production processes through digital or analog input/output technology. Advantages of PLC: 1.High reliability: PLC has high reliability and stability, and can operate for long periods of time in harsh environments. 2.High flexibility: The programming language of PLC is easy to master and can be flexibly programmed according to actual needs. 3.Easy to maintain: If there is a problem with the system, PLC faults can be quickly located, making maintenance simple and feasible. 二、  DCS (Distributed Control System) DCS is a centralized management and decentralized control system. It consists of multiple controllers, input/output modules, communication facilities, etc., and can achieve data collection, processing, storage, and decentralized control. Advantages of DCS: 1.Openness: DCS systems typically have an open structure that allows for easy integration with other systems. 2.Strong processing power: The controller of the DCS system has powerful data processing capabilities, capable of processing a large amount of data. 3.Image display: DCS systems are usually equipped with rich graphical interfaces that can display real-time process flow diagrams, equipment operation status, etc. 三、  Microcontroller A microcontroller is a single chip microcomputer that integrates a microprocessor, memory, timer, and input/output interface. It is usually used to control various types of electrical equipment. Advantages of single-chip microcontrollers: Small size: The microcontroller is compact and easy to integrate into various devices. Low power consumption: The power consumption of the microcontroller is extremely low, and it can work for a long time using batteries. Low cost: The price of a microcontroller is relatively low, which can reduce the cost of the entire control system. Overall, PLC, DCS, and microcontroller each have their own advantages and applicable scenarios. PLC is suitable for simple industrial control tasks, DCS is suitable for large-scale industrial production processes, and microcontroller is suitable for controlling various types of electrical equipment. When choosing which technology to use, it is necessary to weigh and choose based on actual needs and scenarios. 四、  Applications in various industries PLC is widely used in the field of industrial control, such as automotive manufacturing, food processing, pharmaceuticals, chemical engineering, etc. In automotive manufacturing, PLC can be used to control mechanical movement, temperature control, pressure control, and other aspects of the production line. In food processing, PLC can be used to control the operation of packaging machines, temperature control, timing, etc. In the pharmaceutical and chemical industries, PLC can be used to control chemical reaction processes, temperature control, pressure control, etc. DCS is mainly used in large-scale industrial production processes, such as petrochemical, power, pharmaceutical, etc. In the petrochemical industry, DCS can be used to control petroleum separation processes, chemical reaction processes, temperature control, etc. In the power industry, DCS can be used to control the working status of generators and monitor transmission lines. In the pharmaceutical industry, DCS can be used to control chemical reaction processes, drug synthesis, etc. Microcontrollers are widely used in various types of electrical equipment, such as smart homes, automation instruments, electric tools, etc. In the field of smart home, microcontrollers can be used to control the switches and temperature control of household appliances. In the field of automation instruments, microcontrollers can be used to control the measurement and recording of various industrial instruments. In the field of electric tools, microcontrollers can be used to control the movement and power control of electric drills, hammers, etc. Advantage discontinued brands： ABB H&B Contronic、Procontic series，Allen-Bradley，GE，Foxboro，Triconex，BENTLY NEVADA 3500SYSTEM，  HIMA，SIEMENS TInumerical control、MOORE MODULE ，Controller，OVATION DCS CARDS etc. We have a great advantage of Discontinued DCS system of spare parts ,spare parts,PLC module, etc As long as you need PLC products, we can help you find it，Price will be great advantage，Waiting for your inquires   Recommended model ABB AX522 Allen Bradley 1790-T0B16X Reliance GV3000E-AC003-AA-DBU-RFI Allen Bradley 2711-T6C1L1 Schneider BMXXBP0400 SIEMENS 6ES7321-1FF01-0AA0 Bently Nevada 330130-045-00-00 WESTINGHOUSE 1C31192G01 GE IC693CMM321双接口 Schneider TSXCSY84 Schneider 140DAO85300 GE IC695PSD140 DYNAX MSS023A1XDD TRICONEX 9662-810 ABB IMDSI22 Bently Nevada 172109-01 ABB CS31 FPR3315101R1032 MATROX Y7367-00 ABB 200-APB-12 B&R 7EX470.50-1 Yokogawa A1112EB HHR07F4G4 Bently Nevada 330103-00-05-05-02-00 ABB SDCS-FIS-31 GE IC693CMM321 ABB PPD113 3BHE023584R2634 EPRO UES815-24V ABB 3DDE 300 400 CMA 120 GE IC600LX648  IC600FP608K IC600LX648L ELMO MATROX IP-8-ISA Allen Bradley 1756-A10 ABB AI895 3BSC690086R1 Allen Bradley 81001-450-52-R B&R 4PP065.0571-X74 ABB 3HAC044168-001 ABB CI854AK01  3BSE030220R1  Allen Bradley 1746-N2 GE SR469-P5-HI-A20-E ABB 1TGE120010R1000 SIEMENS 6ES7414-2XK05-0AB0 abb WT98 07KT98  GJR5253100R0278 Bachmann DIO216 Schneider 520422000 TRICONEX 3607E GE IC698CPE030 Emerson KJ2005X1-BA1 VE3007 ABB 3AUA489002B4562 Schneider 140ARI03010 ABB 3HAC057551-003 ABB ICSK20F1 Allen Bradley 1788-ENBT Siemens 6AV2124-0MC01-0AX0 HONEYWELL CC-PDIL01 51405040-175  GE IC200CHS022J Honeywell FC-TSAI-1620M  

The number of independent motions possessed by a component is called its degree of freedom. Obviously, a free component that performs planar motion has three degrees of freedom. A mechanism is composed of many components connected in a certain way, which should ensure that there is a certain relative motion between the components. This type of connection that allows two components to come into direct contact and generate a certain relative motion is called a motion pair. Low pair The motion pair composed of two components through surface contact is called a low pair. It includes two types: rotating pair and moving pair. The rotating pair can only rotate relatively in one plane, while the moving pair can only move along a certain axis direction. Therefore, a low pair introduces two constraints, namely reducing two degrees of freedom. Senior Officer The motion pair composed of two components in contact with each other through points or lines is called a high pair. 1. Fixed parts (rack) The components used by humans to support moving components are called fixed components (racks). The cylinder block in an internal combustion engine is a fixed component used to support pistons, crankshafts, etc. 2. Prime mover The active components with known motion patterns are called active components. The piston in an internal combustion engine is the driving component, and its motion is input from the outside world. 3. Follower The other moving components that move with the motion of the original component are the driven components. Connecting rods, crankshafts, and other components in internal combustion engines are all driven components. This type of multiple rotating pairs composed of three or more components with overlapping axes at one point is called a composite hinge. The local independent motion that does not affect the motion of the entire mechanism is called the local degree of freedom. In practical mechanisms, constraints that repeat other constraints without limiting motion are called virtual constraints. Virtual constraints should be disregarded when calculating the degree of freedom of the mechanism. If one is a crank and the other is a rocker, then this mechanism is called a crank rocker mechanism. In a hinged four bar mechanism, if both connecting rods are cranks, then this mechanism is called a double crank mechanism. In a hinged four bar mechanism, the two connecting rods are both rocker rods, which is called a double rocker mechanism machine. 1. There must be one pole between the connecting pole and the rack as the shortest pole. 2. The sum of the lengths of the shortest and longest strokes is equal to the sum of the lengths of the other two strokes. As can be seen from the above, when determining the form of a chain four bar mechanism, it is necessary to first determine whether the mechanism meets the rod length condition. If so, the form of the mechanism can be determined using the following method: ① If the short rod can be used as a connecting rod, a crank rocker mechanism can be obtained; ② If the shortest rod is a frame, a double crank mechanism is obtained 3. If the shortest rod is a connecting rod, a double rocker mechanism is obtained. A four bar linkage that satisfies the condition of being in a long chain, regardless of which member is used as the frame, does not have any curvature, so the mechanism can only be a double rich linkage. ■Speed of Reply to Inquiries  Attn: Mr. Liao Mobile: +86 15259245292 Email: postmaster@adlemanplc.com   WeChat/WhatsApp: +86 15259245292 Address: Room 1601, Building 6, Haicang Seattle, No. 330 Zhonglin Road, Haicang District, Xiamen City, Fujian Province

Seven steps to complete Siemens PLC debugging, electrical novices can learn even after reading it! Many beginners in electrical engineering may not know how to start debugging after completing the design of electrical control cabinets and PLC programs, or some may encounter issues such as PLC burning due to improper debugging methods. So, how should the designed electrical system be debugged? You can follow the following seven steps. 1. Check the circuit according to the drawing (without power supply) The drawings of a general PLC system include two parts: inside cabinet drawings and outside cabinet drawings; Cabinet drawings refer to the wiring diagrams inside the cabinet; The drawings outside the cabinet are the wiring diagrams for all electrical cabinets. What needs to be checked in this section is; 1. Is the drawing design reasonable, including the capacity of various components, etc. 2. Check whether the components are connected strictly according to the drawing. The most important thing to note during this process is to check the power supply: 1. Ensure that the circuit is not short circuited. 2. Ensure that strong and weak currents are not mixed together; Because the PLC power supply is 24V, once 220V is connected to the PLC due to wiring errors, it is easy to burn the PLC or expansion module. 2. Check the external circuit of the PLC, commonly known as "dotting" After confirming the power supply, power on and test the input and output points, commonly known as "dotting". Testing the IO points requires testing one by one, including operation buttons, emergency stop buttons, operation indicator lights, cylinders and their limit switches, etc. The specific method is to have one person operate the buttons on the site side and the other person monitor the input and output signals on the PLC; For large systems, a test table should be established, that is, marked after testing. If any wiring errors are found during the construction process, they need to be dealt with immediately. In this step, it should be noted that it is necessary to back up the program and clear the program in the PLC or disable the program to avoid device actions caused by testing. 3. Check the mechanical structure and test the motor load This step requires checking whether the mechanical structure is tight, and whether the motor load is properly protected to avoid accidents caused by accidents. After the inspection is completed, it is necessary to manually test the operation of the equipment. For example, for forward and reverse rotation motors, it is necessary to test the integrity of the circuit and conduct live testing. For frequency converters, corresponding parameters should be set and motor optimization, static identification or dynamic identification should be carried out. It should be noted here that for some special loads, such as vertically moving loads, they need to be carried out by professional personnel to avoid testing accidents caused by improper control. 4. Debugging manual mode/semi-automatic mode and related logical relationships After testing both the IO point and load side, the next step is to debug in manual mode. The manual mode here can also be called semi-automatic mode, which does not directly press the solenoid valve or contactor by hand, but refers to driving the device through buttons or HMI buttons, which corresponds to the automatic state. Manual mode testing can decompose the automatic mode according to human preferences, making it easier to test the program. The most important aspect of this process is to test the safety functions, that is, to test whether the emergency stop, safety grating, and other safety functions have played a corresponding role while the equipment is running. 5. Debugging automatic mode according to production process After completing semi-automatic debugging, the automatic work can be further debugged. This link is the most important and requires testing various interlocks according to the production process, including logical interlocks, safety interlocks, etc., and testing several more work cycles to ensure that the system can work continuously and correctly. 6. Testing of special processes In addition to logic control, there are many expanded functions in the PLC system, such as PID control. After these logic debugging are basically completed, you can start debugging analog and pulse control. The most important thing is to select appropriate control parameters. Generally speaking, this process is relatively long. Be patient and make multiple choices of parameters before selecting the best one. Some PLCs have PID parameters that can be obtained through self tuning. But this self tuning process also takes a considerable amount of time to complete. 7. Complete all the steps above The entire debugging is basically completed. Next comes the step of pre production, which is a pre production work inspection. During this stage, special tests can be carried out in conjunction with production, such as whether the production rhythm is met, whether the safety function can still function under load, etc. Generally, the work can be completed after a certain period of continuous production.   Novice should pay special attention to the power supply. I remember that when I debugged the first project many years ago, the construction company connected the 220V contact and 24V contact of the pull cord switch of the large belt incorrectly (the pull cord switch of the belt is a safety device, with two sets of contacts, one is 220V to disconnect the control loop, the other is 24V to enter the PLC), which caused the burning of a digital input template. Later, it became a long memory. When debugging again, we must distinguish 220 and 24, I never had any problems again. ■Speed of Reply to Inquiries  Attn: Mr. Liao Mobile: +86 15259245292 Email: postmaster@adlemanplc.com   WeChat/WhatsApp: +86 15259245292 Address: Room 1601, Building 6, Haicang Seattle, No. 330 Zhonglin Road, Haicang District, Xiamen City, Fujian Province

        SIMATIC S7- PLCSIM Advanced: Joint simulation through API  After using S7-PLCSIM Advanced as an independent simulation system, you can simulate and test the STEP 7 program you created. Due to the fact that SIMATIC S7- PLCSIM Advanced can be used as a virtual controller to comprehensively simulate the functions of S7-1500 or ET 200SP CPUs, testing STEP 7 programs does not require the use of a real controller. Virtual controllers also support contextual testing with systems or machines. Virtual controller to system or machine simulation (joint simulation) can be achieved using user interfaces (APIs). The STEP 7 program created in STEP 7 V14 is used to control the transportation system. For comprehensive functional testing, the STEP7 program can be loaded into the virtual S7-1500 controller through S7-PLCSIM Advanced. This controller can interact with joint simulation (factory simulation) through API to validate STEP 7 programs in a factory environment. Advantages of application examples: Introduction of API usage Provide C # sample code that you can use to write your own application Topics not covered by this application This application example does not include content related to the following topics: Fundamentals of object-oriented programming Basic knowledge of programming environments, such as Microsoft Visual Studio Basic knowledge of TIA Portal configuration Assuming you have fully mastered the above knowledge. For Detail Pics,Pls Contact Us With Free! More than 45,000 products stocked. Supply 100% brand new products. Sell genuine products only. Contact me at ONCE to get the quotation: Attn: Mr. Liao Mobile: +86 15259245292 Email: postmaster@adlemanplc.com   WeChat/WhatsApp: +86 15259245292 Address: Room 1601, Building 6, Haicang Seattle, No. 330 Zhonglin Road, Haicang District, Xiamen City, Fujian Province 6ES7416-2FN05-0AB0 6ES7441-2AA00-8AA0 6ES7468-1CB00-0AA0 6ES7416-2XK00-0AB0 6ES7441-2AA00-8BA0 6ES7468-1CC50-0AA0 6ES7416-2XK01-0AB0 6ES7441-2AA00-8CA0 6ES7468-1CF00-0AA0 6ES7416-2XK02-0AB0 6ES7441-2AA00-8EA0 6ES7468-1DB00-0AA0 6ES7416-2XK04-0AB0 6ES7441-2AA03-0AE0 6ES7468-1DC50-0AA0 6ES7416-2XL00-0AB0 6ES7441-2AA04-0AE0 6ES7468-1DE50-0AA0 6ES7416-2XL01-0AB0 6ES7444-1MX00-0XE0 6ES7468-1DG00-0AA0 6ES7416-2XN05-0AB0 6ES7450-1AP00-0AE0 6ES7468-3AH50-0AA0 6ES7416-3ER05-0AB0 6ES7450-1AP00-8AG0 6ES7468-3BB50-0AA0

Describe This article explains how to access multiple functions of automation devices using smartphones. Fig. 01 Possible scenarios Accessing CPU, SIMATIC panel, and frequency converter web servers through a web browser on your phone Using Siemens applications such as logos Transfer visualization files to mobile phones through WinCC Smart client requirement We need a PC with Windows 7 installed and WLAN interface, an Android phone, and an automation system with an IP subnet of 192.168.43. x. explain Follow the instructions below to access various functions of automation devices through mobile phones. Disable phone data connections on smartphones      1. Disable data connections on smartphones to avoid costs and security risks. Start from the 'Settings' menu on your smartphone. Select 'Connections' and then select' More networks'. 2.Select 'Mobile networks'. 3.Disable the 'Mobile data' feature. Configure and enable portable Wi Fi hotspots for smartphones Enable mobile hotspot. Enable through the 'Settings' menu on your phone. Select 'Connect' and then select 'More Networks'. select"Tethering and portable hotspot"。 Enable portable Wi Fi hotspots through a slider. Select 'Portable Wi Fi hotspot' to configure a portable Wi Fi hotspot. Select 'Configure' to change the password for the SSID network and Wi Fi network. Set up PC Follow the instructions below to set up your PC.   Browse your PC to find a Wi Fi network, such as your phone's Wi Fi network name: Android AP, and enter the previously set Wi Fi password on your phone to connect to the phone's Wi Fi network. Your PC's name appears on your phone as a connected device. Open the control panel of the PC. Find "Network and Internet" in the control panel and open "Network and Sharing Center". Select 'Change adapter settings' in the Network and Sharing Center to display accessible network connections. For example, in the figure below, you can see the wireless network connected to an Android phone. CPU, SIMATIC panel, etc. are connected to Port 1 "[P1] Local Area Connection". To access connected devices, you need to manually modify the IP address of the LAN interface. Right click on the LAN interface to open the properties of the LAN interface. In the LAN interface properties, select "Internet Protocol Version 4 (TCP/IPv4)" and then click the "Properties" button. Select the "Use the following IP address:" option and enter the IP address and subnet mask, which are the same as the automation device. Check the two interfaces (LAN and WLAN) and right-click on one of them. Select 'Bridge' in the pop-up dialog box. The LAN and WLAN interfaces are bridged together, allowing Android phones to access automation systems through the LAN interface. You can access the CPU's web server by using a web browser on your phone. You can use other functions through the app.