It is common for technicians to encounter the issue: why can’t my touch screen communicate with the PLC? Here are two problems that might occur: 1. Weintek Touch Screen Cannot Communicate with Siemens PLC, Always Prompting No Response from PLC. How Should I Set It Up? Solution approach: You need to set the same baud … Read more
The following example connects the MT6103IP touch screen to a Panasonic PLC; other brands of PLCs can be referenced. 1. Determine the connection scheme as follows: 2. Hardware wiring Below are the wiring terminals of the touch screen, which has 9 pins, allowing for one group of RS232 and another group of RS485. 1) RS232 … Read more
In the previous article “UART Communication Interface Protocol – UART (I) Protocol Basics”, we briefly and meticulously describedUART configuration items and the signal timing of the communication process. This article will continue to introduce some interface specifications used by theUART interface under different electrical characteristics. 1. Introduction In fact,UART only defines the signal timing without … Read more
UART, I2C, RS485… These communication protocols are commonly used, but their explanations can be ambiguous. I feel it’s necessary to organize them to consolidate and differentiate. The article is a bit long, so I suggest saving it for later reference. UART stands for Universal Asynchronous Receiver-Transmitter. The UART port refers to a type of physical … Read more
In embedded development, interfaces such as UART, I2C, and RS485 are commonly used. Understanding them may be ambiguous, so this article organizes them. The article is lengthy, with an estimated reading time of about 10 minutes. UART (Universal Asynchronous Receiver-Transmitter) The UART port refers to a type of physical interface (hardware). UART is an asynchronous, … Read more