Understanding RS485 Serial Communication Through Principles

Understanding RS485 Serial Communication Through Principles

RS485 interfaces form a half-duplex network, typically using a two-wire system, often employing shielded twisted pairs for transmission. This wiring method allows a maximum of 32 nodes to be connected on the same bus topology. Initially, data was output as analog signals for simple process quantities, and the RS232 interface was used for instrument connections, … Read more

Disassembling the IBM ThinkPad Optical Drive: Some Surprises

Disassembling the IBM ThinkPad Optical Drive: Some Surprises

Breadboard Community Disassembly Event,Drones,Handheld Oscilloscopes,Computers,Robotic Vacuums,Smart Watches,Solid State Drives,Portable Speakers,Great Prizes and Lots of Benefits, Welcome to Join!More Details👈 Recently, I saw the news about IBM layoffs, and I started a conversation with my family. My father, hearing about the closure of the China division, asked, “What about Lenovo?” Indeed, many people from that generation … Read more

Connecting Siemens S7-1200 with Encoders: Programming Examples

Connecting Siemens S7-1200 with Encoders: Programming Examples

Search on WeChatTechnical Training1. Connection of Siemens S7-1200 with Incremental Encoders The digital input switch points of Siemens S7-1200 provide a fast counter function for the pulse signals of incremental encoders, with a single-phase signal reaching 200KHz, and a dual-phase signal (which can quadruple frequency and determine direction) reaching 80KHz. For the commonly used 2500PPR … Read more

Comprehensive Analysis of Siemens PLC Communication

Comprehensive Analysis of Siemens PLC Communication

Recently, the price of Siemens PLCs has risen significantly, causing quite a stir in the industrial control community. Not only have prices increased, but there are also shortages, forcing many to change their plans. It is said that the chip replacement has been completed recently, and supply should be restored soon, with prices expected to … Read more

Summary of Communication Protocols Between Major Brand PLCs

Search on WeChatTechnical Training Since the first PLC was successfully applied in the automotive production line of GM, PLCs have been widely used due to their convenience, reliability, and low cost. However, PLCs are essentially black boxes; it is not possible to observe the control process in real-time and intuitively, which presents a significant gap … Read more

Connecting Siemens PLC to Absolute Encoders: Programming and Examples

Connecting Siemens PLC to Absolute Encoders: Programming and Examples

Click on the “Technical Training” above, and select “Top Public Account“ 160,000+ industrial control professionals follow this WeChat platform: technical sharing, learning exchanges, industrial control videos Recently, some fans inquired about Siemens encoders, so today I will share content about the S7-1200 PLC. Let’s take a look! 1. Connecting Siemens S7-1200 to Incremental Encoders The … Read more

Understanding Siemens PLC Communication

Understanding Siemens PLC Communication

Search on WeChatTechnical Training Introduction Recently, the price of Siemens PLC has increased significantly, causing quite a stir in the industrial control sector. Not only has the price risen, but there are also shortages, forcing many to change their plans. It is reported that a chip replacement has been completed recently, and supply is expected … Read more

Common Communication Protocols and Interfaces for PLCs

Common Communication Protocols and Interfaces for PLCs

Search WeChatTechnical Training Differences Between RS232 and RS485 Interfaces 1. Physical Structure of the Interface 1. RS232 Interface: One of the computer communication interfaces, RS-232 typically appears in the form of 9 pins (DB-9) or 25 pins (DB-25). Usually, personal computers have two sets of RS-232 interfaces, referred to as COM1 and COM2. 2. RS485: … Read more

What Communication Methods Are Supported by S7-1200 PLC Ethernet Port?

What Communication Methods Are Supported by S7-1200 PLC Ethernet Port?

Click↑↑Technical Training, follow and pinto subscribe for free long-term 180,000+Industrial control personnel follow the WeChat platform: technical sharing, learning exchange, industrial control videos Nowadays, more and more PLCs are equipped with Ethernet communication ports, for example: the S7-200 SMART PLC comes standard with an Ethernet communication interface. Today, let’s talk about the Ethernet communication content … Read more

Weilun Touch Screen and Mitsubishi Inverter Communication Case Study

Weilun Touch Screen and Mitsubishi Inverter Communication Case Study

Search WeChatTechnical Training1. Action Description 1. Achieve forward and reverse rotation of the inverter, read and write frequency; 2. Hardware Devices 1. Weilun Touch Screen: MT6071IP 2. Mitsubishi Inverter E700 Series 3. Software Weilun Touch Screen Software: 4. Software Operation StepsStep 1: Double-click to open the touch screen software icon to start the software. Step … Read more