Overview The digital input interface of a PLC is not complex. As we know, to enhance anti-interference capabilities, PLCs use optical isolators to isolate the input signals from the internal processing circuits. Therefore, the signal at the input end merely drives the internal LED of the optical isolator, which is then received by the phototransistor … Read more
WeChat SearchTechnical Training RS485 is one of the most common buses, and almost every industrial control device uses it, which we are quite familiar with. We all know that RS485 is a half-duplex communication, and its internal source in the CPU is serial communication. Serial communication distinguishes between transmission TX and reception RX. If TX … Read more
Safety distance requirements Including electrical clearance (spatial distance), creepage distance (surface distance), and insulation penetration distance. 1. Electrical clearance: The shortest distance measured along the air between two adjacent conductors or between a conductor and the surface of an adjacent motor housing.2. Creepage distance: The shortest distance measured along the insulating surface between two adjacent … Read more
PLC Technology Application Institute, helps you quickly grow into a qualified automation engineer. RS232 and RS485 are common interfaces in low-voltage electronics. Many friends have mentioned the differences between them, so today we will explore them together. 1. Physical Structure of Interfaces 1. RS232 Interface: One of the computer communication interfaces, the RS-232 interface usually … Read more
1Definition and Classification of Power Distribution Iron Accessories Iron accessories are commonly referred to as components used in power transmission and transformation lines; they belong to non-standard hardware. The iron accessories in power distribution lines generally refer to the iron parts on concrete poles and their connections. This includes various clamps, pins, cross beams, isolation … Read more
【For those looking forward to the lecture《Face-to-Face with Admissions Officers: A Visit to the University of Tulsa | Interview with a Leading U.S. Petroleum School》, welcome to sign up to participate】 Let’s take a look at a set of data: Data from the U.S. Department of Labor: From 2022 to 2023, the position of mechanical … Read more
Recently, the Beidou signal “router” developed by the State Grid Jiangsu Electric Power Research Institute was put into maintenance operation at the Wuxi 220 kV Shuanghe Substation, providing accurate differential positioning data for the Beidou terminal installed on the crane, achieving centimeter-level positioning for the crane. The Beidou differential positioning technology can provide centimeter-level high-precision … Read more
General Development Manual / Training Materials for Diagnostic ReagentsAn Yue’s Shop159Purchase Source: Yizhiqiao, Medical Device Quality and Testing Medical device development is a relatively long and complex process that may integrate multiple disciplines such as chemistry, physics, mechanics, electronics, computer software, and artificial intelligence. The concept of medical devices is very broad; it includes not … Read more
Solder Mask Layer The solder mask refers to the areas on the board where green oil is applied; since it is a negative output, the areas with solder mask actually do not have green oil but are instead coated with tin, appearing silver-white! Paste Mask Layer The paste mask is used during machine placement and … Read more
Search WeChatTechnical TrainingStep 1Create a new window and set it as the startup window; Step 2Add a percentage fill component to the startup window interface; Step 3Drag and place, then double-click the component to set parameters; Step 4Double-click an empty area to open the window editing script; After setting is complete, the boot will display … Read more