What are PLC and RTU? What is the difference between the two? I believe many people are at a stage where they roughly know what it is, but cannot accurately say it.  This article will tell you in detail!   What is PLC PLC (Programmable Logic Controller) can be used as a programmable controller, and its most basic and widespread application field is to replace traditional relay  circuits and achieve logic control and sequence control. PLC consists of CPU and input/output modules.   It has multiple control functions, data acquisition, storage and processing functions, mathematical operation functions, and input/output interface conditioning  functions. In addition, there are communication networking functions, human-machine interface functions, and editing and debugging functions. Mainly applied  in traditional industrial control f...

Several methods of program protection for S7-1500   The program protection methods for S7-1500 and S7-300/400 are not exactly the same   1. Read protection   In the hardware configuration, open PLC Properties - Protection to set access permissions as needed. When selecting three protection levels other than "full access  permission (no protection)", an access password needs to be set. Protection level: No protection, write protection, read-write protection, fully protected (password required for upper computer communication)   2. Protection of proprietary technology for program blocks The 1500CPU program blocks, including OB, FC, and FB, all support encryption functionality. DB also supports encryption function. After encryption, the attribute is  read-only, and variables can be seen, but they cannot be added or deleted. Right c...

According to the national statutory holiday schedule, our company's specific holiday arrangements are as follows: Holiday period: January 1, 2025 (Wednesday), with one day off. Normal work will resume on January 2.  

It is important to determine the reference potential point   Regarding the issue of not being able to read the value, if there is always no change in 32767, the value already exists, it is just an overrange. If the value is 0, then  attention should be paid to whether there is a problem with the analog quantity. Using a multimeter to measure the on-site signal does not exceed the limit. Why  do these two phenomena occur? This is because the selected reference potential is different. For example, if the signal coming from the site is 5V, the first thing to  ask is what voltage is the reference point? 10-15 is 5V, and -10~-5 is also 5V. If the reference point of the measuring end is 0V, there will be a problem with the  measurement, so it is necessary to ensure that both ends are equipotential. The reference potential point of the analog module is MA...

Flexible robots and rigid robots are both types of industrial robots, and the main difference between them lies in their structure and usage:   Structure: Flexible robots typically have more flexible body cavities and/or joint structures, allowing for more complex form transformations, while rigid robots are  composed of rigid rods and their joint connections, with relatively fewer degrees of freedom in motion.   Control method: Flexible robots usually use force and visual perception based control systems, while rigid robots mainly use programming control.   Application areas: Flexible robots are mainly used in healthcare and service robots, such as surgical robots, rescue robots, grass cutting robots, etc; Rigid robots are  mainly used in automated production equipment such as assembly, spot welding, painting, cutting, etc. on industrial production lines...

At the end of the year, I praise the winter season, peace and joy, and the will to overcome all obstacles.

         With the increasing market demand, the division of labor among enterprises is becoming increasingly refined. Manufacturing enterprises need a group of more professional and efficient service-oriented enterprises to provide them with protection, which also gives the opportunity for authorized service partners to emerge. Through the project of authorizing service partners, Siemens will work with ASP partners to comprehensively empower ASP in technology, business, management, and platform, enhance the competitiveness of partners, provide comprehensive services from basic services, value-added services to digital services for industrial enterprises, and enable numerous small and medium-sized enterprises with a large number and wide distribution to enjoy the digital dividend, accelerate the process of industrial digital transformation, and jointly b...

Warm celebration of Zhonghai De becoming an authorized service partner of Siemens Siemens Approved Service Partner (ASP) refers to a service provider that has been officially certified and authorized by Siemens. These partners, under the unified guidance and management of Siemens Industrial Business Customer Service Group, represent Siemens to provide customers with more convenient and efficient after-sales services. The ASP system ensures that customers, especially small and medium-sized enterprise customers located in industrial parks and clusters, can receive timely, professional, and efficient high-quality services to assist in their digital transformation....