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 click on the program block that needs to be protected, click on proprietary technology protec...

1、 Module Introduction CB1241RS485 allows the S71200 CPU to connect to other Modbus devices through this module, achieving the communication function of the S71200 Modbus RTU master station. The CB1241 RS485 module also supports communication connections such as USS and point-to-point PtP. The appearance of this module is shown in the following figure. The wiring terminals and connections for the CB1241 RS485 module are as follows: 2、 Configuration Introduction This example introduces the installation of CB1241RS485 module with two CT Uni SP drivers on S71200 CPU1215DC/DC V4.0 CPU. 1. Open TIA V13 software, create a new project, specify the project name and storage path. Click on the 'Left Explorer Window' Select 'Add New Device' in the 'Add CPU Type' section. In this example, select the S71200 1215 DC/DC C...

With the continuous development of computer control technology, the application of editable logic controllers is also becoming increasingly popular, becoming an important component of automation technology. Among them, Siemens S7 series PLCs also account for a large proportion in industrial control in China. As an intuitive and convenient way of human-computer interaction, touch screens have been widely used in industrial control. In the long-term use process, the author found that many people are unfamiliar with data communication between different models of PLCs, as well as between Siemens PLCs and third-party touch screens. This article will use specific examples to illustrate how to use Ethernet to achieve communication between MCGS touch screens and Siemens S7 series PLCs, laying the foundation for industrial automation control systems. 1 Hardware compos...

Accept the fully connected MAC solenoid valve structure and perform element leakage sealing throughout the entire pressure range, making it easier for the pipeline  system to perform ball cleaning and pipeline maintenance. Accept special molding process, lining the lining material on the inner wall of the valve housing, which can  withstand the erosion of strong acid and alkali media. The valve structure consists of a full bore floating ball type (two-stage) and a full bore fixed ball type  (three-stage), which are important for cutting off or connecting corrosive media in pipelines, and can be used for fluid adjustment and control.     The characteristic of MAC solenoid valve is that the valve seat sealing ring is composed of multiple layers of stainless steel sheets on both sides of a soft T-shaped  sealing ring.   The sealing surface betw...

1. On site inspection   Regular on-site inspections can effectively identify problems and provide timely maintenance. The inspection content includes the working status of the frequency converter and distribution equipment, the flow rate of the cooling system, the condition of the cooler, the temperature, and the ventilation status Control the contact status of signal lines, wiring terminals, etc. If there are any abnormalities, they should be dealt with promptly.   2. Maintain cleanliness   The frequency converter mainly emits heat through air cooling, so the module surface, fan, and ventilation holes must be kept clean. If not cleaned for a long time, it will reduce the heat dissipation effect of the inverter, and in severe cases, it will Overheating can cause accidents and also affect the service life of the frequency converter.   3. Keep the cable in goo...

1. KSS00276 robot parameters are not equal to robot type   ① Login Expert Mode   ② Teaching pendant operation: [Menu] - [Display] - [Variables] - [Single]   ③ $ROBTRAFO [] new value: TRAFONAME[]   ④ Click on 'Set Values'.   2. Battery alarm: ① "Rechargeable battery warning - an aging battery was found, but the battery is not functioning properly   The quantity is still sufficient   ② Unable to cache   Analysis: This situation usually occurs when the robot is first turned on, and the battery plug is not plugged into the CCU board in the control cabinet when the robot leaves the factory.   Measure: Find the battery power plug inside the control cabinet and plug it into the CCU card socket corresponding to the label.   3.  KSS00203- Fully operational and open   Measures: ① U...

Zhonghai De Group's 2025 Spring Festival holiday notice to all departments of Zhonghai De Group:   According to the relevant regulations of the General Office of the State Council on the arrangement of some holidays in 2025, combined with our company's  arrangements and actual situation, we hereby notify the following arrangements for the Spring Festival holiday in 2025:   Holiday period: January 25th to February 4th, 2025 (a total of 11 days) Return to work: February 5th, 2025 (the eighth day of the lunar new year).   I wish all employees and their families and friends: Good luck in the Year of the Snake, happiness and fun for the whole family, with hope, no disasters, no difficulties, and much joy. Chang'an Ning  ...

New Journey, New Leap Forward   The past year of 2024   Let's walk hand in hand together   Today we are gathered together   Summarize the past together and look forward to the future   Year end Meeting       Every gathering will become precious in life   memory   The flowers are similar every year   Every year, people are different   A splendid and diverse annual banquet   Held at the end and beginning of the year   Share the joy and achievements of the past year together   I also wish the new year to create brilliant achievements again             A wonderful review of the dinner party   The brilliant moment of light on stage is vividly remembered     Lucky Draw Celebrate our extraordinary moment and embark on a journey of luck together! Lu...