Grounding of PLC  Good grounding is an important condition for the safe and reliable operation of the programmable logic controller(Siemens 6ES5988-3NB41 SIMATIC S5 Fan, B&R X20BR9300 X2X Link Bus Receiver, Allen Bradley 1783-ETAP 3 PORT ETHERNET/IP Tap, Allen Bradley 2711P-RDT15C PanelView Plus Display Module ). It is best to use grounding devices for the programmable logic controller and strong electrical equipment. The cross-sectional area of ​​the grounding wire should be greater than 2mm 2 . The distance should be less than 50m. Moreover, a single-point access to the grounding device is achieved in the entire programmable program controller system. In a power plant or substation, a grounding network is available. The control panels and automation components may be far apart. If they are grounded on the nearest grounding copper bar, the grounding current of the strong electrical equipment may cause a large potential difference between the two grounding points, which will interfere with the normal operation of the control system. Work. In order to prevent the cross-interference caused by the currents on the grounding wires of different signal loops, the internal grounding wires of the weak current signals must be connected in separate systems (for example, in units of control panels), and then lead to a certain point of the grounding network with wires of a specified area . , so as to realize the single- point grounding of the control system. Have interest in above parts? get in touch with Vivi (sh_plc@163.com).   

Application of Siemens AS-i in Elevator Serial Communication As a new type of centralized and decentralized elevator control system, serial communication has been widely used in China. Compared with the previous centralized and unified control system, each sub-controller can complete some tasks such as call, instruction, display, etc. The burden of the controller is reduced, and the efficiency of the main controller is significantly improved.   Serial communication significantly reduces the input and output points of the PLC process controller. The number of PLC points in the control cabinet will not change with the increase of floors, making it possible to standardize the control cabinet. In addition, serial communication also reduces the number of hoistway cables, makes installation, wiring and maintenance simple and convenient, greatly reduces fault points, and improves the reliability of the control system.(Siemens 6ES5955-3LF44 SIMATIC S5 , Allen Bradley 2711P-T7C22D9P PanelView , B&R X67SM2436  Motor Module, Allen Bradley 1794-AENTR Adapter)   At present, the profibus network system with master-slave structure is dominant in elevator serial communication technology. It adopts RS-485 bus, and the communication structure is command-response type. The potential danger is the use of centralized control method. Failure the entire system will be paralyzed. In addition, in the hardware system, in the production of hardware circuit boards, it is impossible for each component to be strictly accurate. Even if the aging treatment is performed before the components are used, it is not only time-consuming and troublesome, but also difficult to ensure 100% qualified, so such circuit boards are also very It is difficult to ensure the quality, and it is a hidden trouble when used in a serial system. The other is the independent communication mode of each contact, such as CAN bus, NEW LIFT and LONWORKS bus. In short, there is a problem with these serial communications that it is very inconvenient to check which layer has a problem, and each layer needs to be checked again, and the Siemens AS-I we use can solve this problem very well. Its master station can display the information of each slave station independently.   AS-i (Actuator-Sensor-Interface sensor-actuator-interface) is a network designed for the lowest level of field automation, a network of actuators and sensors used in double stations. AS-I works based on the master-slave principle. There is a master module on the central controller PLC. The sensors/actuators connected via AS-interface cables are operated as slave modules by the master module.   Have interest in above parts? get in touch with Vivi (sh_plc@163.com).  

LOGO! is a universal logic module developed by Siemens. LOGO! integrates the following. control functions Operating and display panel with backlight Power supply Interface for expansion modules Interface for program modules (plug-in cards) and PC cable Pre-configured standard functions such as on/off delay relays, pulse relays and soft keys Timer Digital and analogue flags Digital analogue inputs and outputs, depending on the type of device What can LOGO! do for you? LOGO! can also be used in special control systems such as conservatories or greenhouses, for controlling operating signals and by connecting a communication module (e.g. AS-i) for the distributed local control of machines or processes. Special versions are also available with or without operating panels and display units for a range of applications such as small mechanical equipment, electrical installations, control cabinets and installation work. What equipment is available? The LOGO! Basic model (Allen Bradley 1794-IE12 Analog Input Module, B&R X20BB81 Bus Module, B&R X20AO4622 Analog Output Module)is available in 2 voltage classes Class 1 ≤ 24 V: e.g. 12V DC, 24V DC, 24V AC Class 2 > 24 V: e.g. 115 V.. .240 V AC/DC Versions available with display: 8 inputs and 4 outputs without display ("LOGO! Pure"): 8 inputs and 4 outputs  Each version, integrated in 4 sub-units (SU), is equipped with an expansion interface and offers 37 pre-configured standard and special functions for the creation of line programs. Have interest in above parts? get in touch with Vivi (sh_plc@163.com).  

The hollow shaft encoder is also known as a hollow sensor and a hollow sensor. It is a very flexible encoder. It is characterised by its compactness and ease of adjustment and is suitable for a wide range of applications. Each rotary encoder must be connected to the load by means of a shaft, either as a detachable part or as a bearing connected to the housing. Regardless of the principle used in the encoder, the method of mounting the omron encoder(B&R X20IF1063 Communication Module, Allen Bradley 1769-OB16 Output Module, Siemens 6DD1600-0AJ0 CPU) is a factor that should not be overlooked. The shaft diameter of the hollow shaft encoder applies to the extension shaft of the motor. The concentric shaft of the motor passes through the middle space of the encoder and the bottom clamping ring is tightened and attached. This means that the hollow shaft encoder does not have to be perfectly sized for the protruding shaft of the motor and no additional parts are required to increase the size during installation. The clamping method and mounting bracket construction of the hollow shaft encoder makes it very easy to adjust its position and absorb vibrations and shocks from the load, and also increases the service life of the hollow shaft encoder. Have interest in above parts? get in touch with Vivi (sh_plc@163.com).   

Reasons for ammonia blocking denitration spray gun The reason why the denitration lance of circulating fluidized bed, pulverized coal boiler, chain boiler, grate furnace and cement kiln is blocked by ammonia There are many reasons why the spray gun is blocked by ammonia in circulating fluidized bed and denitration spray gun of pulverized coal boiler Linfen. The reason why most power plants(B&R X20CS1070 Communication Module, Allen Bradley 1769-L32E Controller, B&R X20HB2880 Hub Expansion Module) in China still use coal for power generation. Coal fired power generation will produce a large number of waste gas pollutants, so denitrification technology must be used to purify and discharge the waste gas. Circulating fluidized bed and pulverized coal boiler are widely used in coal-fired power plants. Denitration spray gun is an important part of the whole denitration system. The spraying effect of denitration spray gun directly affects the denitration efficiency. Our new generation of denitration spray gun can effectively improve the denitration efficiency., The problem of low service life of denitration spray gun is improved!  Have interest in above parts? get in touch with Vivi (sh_plc@163.com).

Working principle of fully enclosed weighing coal feeder The fully enclosed weighing coal feeder equipment is mainly composed of the closed shell of the coal feeder, belt conveyor, electronic belt scale, coal chute, coal inlet and outlet gate, electric control and metering display equipment, control system and related alarm devices. working principle. The materials fall into the coal feeder (B&R X20BC8083 Controller, Allen Bradley 1746-P2 Power Supply, ABB FS300R12KE3/AGDR-61C IGBT KIT)through the coal chute from the upper bin of the fully enclosed weighing coal feeder, and the internal conveying part of the fully enclosed weighing coal feeder uniformly outputs the materials to the outlet. When materials are weighed by the electronic belt, the weight signal and speed signal are sent to the secondary instrument, and the instantaneous flow and cumulative measurement are calculated through A/D conversion and amplification, and displayed on the front panel of the weighing controller. Have interest in above parts? get in touch with Vivi (sh_plc@163.com). 

Malaysia's semiconductor industry will benefit from the chip and Science Act The bill is an abbreviation for "creating incentives conducive to the production of semiconductors and science". It promises to provide more than 280 billion US dollars (1 US dollar = rm4.44) of federal funds, including 52.7 billion US dollars of subsidies, to support semiconductor production and research in the United States. Datuk Seri Wong Siew Hai, chairman of the Malaysian Semiconductor Industry (B&R X20PS2100 Power Supply Module, Siemens 6AV2123-2MB03-0AX0 HMI, Allen Bradley 1756-IB32 Input Module) Association (MSIA), said that according to the bill signed by President Joe Biden on August 9, 2022, the world's largest economy is expected to establish the most advanced chip manufacturing (FAB) factory with a process technology of 7 nm or less. Although the new technology is expected to be transferred to the assembly and testing parts after the establishment of the new factory in the United States, Huang hopes that the government can encourage Malaysian companies to help them grow so as to compete with their counterparts in Southeast Asia. To acquire more parts,get in touch with Vivi (sh_plc@163.com).

A 120km line will be built to connect Malaysia and Indonesia "The proposal on this project was submitted by the private sector, and both countries agreed in principle to study the matter in detail," he said. "As for the state government, we have taken all government agencies to visit the area where the new route is planned yesterday," he told reporters after an interview with melakan radio. He added that the project will also involve the construction of other infrastructure, including a transportation dispersion area and an immigration, customs, quarantine and security complex. Ab raud said that in addition, a new industrial zone (B&R X20AO2622 Analog Output Module, Allen Bradley 1756-OF8 Analog Output Module, Siemens 3UG4512-1BR20 Relay)with an area of about 2023 hectares will be developed in stages in Masjid Tanah. He added that the development of the area will be carried out by the  company, which is also expected to help open a new town in Masjid Tanah. To get INDUSRIAL part,get in touch with Vivi (sh_plc@163.com).