Search on WeChat Technical Training >>>> Step One: Create a new project, enter the new project wizard, and select the model; >>>> Step Two: In the project new wizard, select “Standard I/F (RS422/485)” in the “Connection Machine Settings” under “I/F”; >>>> Step Three: Complete the touch screen settings as follows; After editing the touch screen … Read more
Click on the ” Technical Training ” above, and select “Top Official Account“ 170,000+ industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 01 Connection Count The S7-200 SMART CPU can connect to Siemens HMI devices that support the PPI protocol either through its built-in RS485 port or signal board, … Read more
The relationship between PLC and inverter is one of inclusion, where both can execute specific commands to control electric motors. The PLC is a programmable hardware for executing programs, while the inverter is one of the devices it can control. However, the PLC’s scope is broader than that of the inverter, enabling it to control … Read more
Siemens all-subject + TIA Portal + EPLAN electrical drawing video recordings are available for low-price packaging! Chuangkong Education Siemens All-Subject Class Course Introduction 01 Connection Quantity The S7-200 SMART CPU can connect to Siemens HMI devices that support the PPI protocol either through the integrated RS485 port or signal board, or through the integrated Ethernet … Read more
1. What Is Communication To understand RS485 communication, we first need to clarify what communication is. In fact, communication is the transmission of 0 and 1 codes between two devices, where 0 represents low level and 1 represents high level. If device A transmits data to device B, then device A and device B must … Read more
RS485 communication is a commonly used communication method in the industry, widely applied with a simple circuit. Below is a circuit diagram of the 485 interface: This image is one I found online; it is a commonly used circuit. Although many people use it this way and I haven’t heard of any issues, I believe … Read more
As TI employees, we are often asked if there are any insights or tips we have when designing with RS-485. To this end, we have compiled a series of comprehensive tips that must be remembered when using RS-485. And usage methods…… 1) Use twisted pair cables with Zo = 120Ω or 100Ω 2) Connect bus … Read more
Click the above ” Technical Training ” and select “Pin the Official Account“ 160,000+ industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos Methods for Mitsubishi PLC to Control Mitsubishi Inverters: Using the PLC’s digital output to control the inverter (i.e., directly connecting the PLC’s digital output to the inverter’s … Read more
Click the image above to follow “Changxue Electronics” for easy learning of electronic knowledge. Changxue Electronics Subscription Account Daily updates on technical articles in the electronics industry and the latest information on microcontrollers for easy learning anytime, anywhere. 1. Signal Reflection Issues During communication, when there is an impedance mismatch or discontinuity, signal reflection occurs, … Read more
The 485 relay module uses the RS-485 communication protocol for data transmission, allowing independent or simultaneous control of multiple relay switch states through serial communication. This makes it easier to control multiple devices or circuits. It not only saves wiring costs but also features a compact size, strong anti-interference capability, long transmission distance, and high … Read more