Recently, a project owner required MODBUS TCP/IP, with hardware consisting of S7-1200 and KTP1200 panel. The owner was unable to provide the IP subnet during the project implementation phase, thus a solution was needed to modify the PLC and panel IPs on-site:This can be divided into three steps: modifying the PLC IP, modifying the connection … Read more
PLC debugging is the “last mile” of electrical project implementation—no matter how perfectly the program is written or how standard the wiring is, if there are issues during the debugging phase, the equipment will not operate normally. Many engineers, when first encountering debugging, often fall into the trap of “power on with no response → … Read more
Understanding constants and their use in PLC programming is crucial for professionals working with S7 controllers. This article will provide you with the necessary knowledge and skills to utilize constants in PLC programs according to your needs. As a practitioner aiming for proficiency, you should learn about the types of constants to enhance program readability … Read more
1. Core Functions and Technical Features High Performance and Flexibility Signal Board Design: Supports extended communication ports (RS232/RS485), digital and analog channels, without occupying additional control cabinet space, reducing costs. Processor and Calculation Speed: Equipped with Siemens’ dedicated high-speed processor, with a basic instruction execution time of 0.15μs, leading in performance among similar small PLCs, … Read more
Click the blue text to follow us When using Siemens touch screens, many engineers find that their response speed is noticeably slower compared to certain brands (such as MCGS). This is primarily because the default variable acquisition cycle for Siemens touch screens is set to 1 second. This delay is particularly evident in scenarios requiring … Read more
1 Concept Data types are used to specify the size and format of data elements, as well as how to interpret the data, describing the length of the data (i.e., the number of binary bits) and its attributes. All data in user programs must be identified by data types, and only variables of the same … Read more
Recently, an old student asked about the design of the Siemens SMART200 PLC servo motor and electric hoist control program. I will summarize and organize the information here for interested students! Project Overview This project originates from the practical need for automated control of a single-arm crane, aiming to build a reliable control system using … Read more
Configuring and utilizing the SiemensS7-1200 PLC and simplified series panels (such as KTP400 Basic) requires a systematic approach. 1. Software Preparation Install TIAPortal: Use version V13 or higher, ensuring it includes STEP7Basic (PLC programming) and WinCCBasic (HMI configuration) components. Activate License: Activate the required license through AutomationLicenseManager to avoid functional limitations. 2. Create Project Create … Read more
Abstract: Siemens and Mitsubishi are the two most representative PLC brands in the field of automation, and their differences go far beyond the hardware itself, delving deeper into programming philosophies and ecosystems. This article will deeply compare the design philosophies of the two from multiple dimensions such as programming software, program structure, and instruction applications, … Read more
At the end of the article, there are 55 practical case materials. Introduction: In automation equipment, the automatic control program is the basic function for the normal operation of the equipment. Since the logic of automatic control is essentially “start condition” result “end condition”, this article uses Siemens S7-1200 PLC and Inovance PLC to write … Read more