Should You Switch to Stop State Before Powering Off the PLC?

Should You Switch to Stop State Before Powering Off the PLC?

During the preparation for a competition, a student encountered a problem: when downloading to the Siemens PLC-1200, the target device’s IP address box turned red, and scanning for the device’s online status revealed two issues, but the specific information about these two issues could not be found. This is like the system telling you “you … Read more

WinCC C Script Set/Reset/Invert

WinCC C Script Set/Reset/Invert

1 Commonly Used C Script Functions are as follows Variable Type Data Type Function to Get Variable Value Function to Set Variable Value Binary Variable BIT GetTagBit SetTagBit Signed 8-bit Integer CHAR GetTagSByte SetTagSByte Unsigned 8-bit Integer BYTE GetTagByte SetTagByte Signed 16-bit Integer SHORT GetTagSWord SetTagSWord Unsigned 16-bit Integer WORD GetTagWord SetTagWord Signed 32-bit Integer … Read more

Siemens Touch Screen and Practical Application Video Tutorials for S7-1200 and S7-200 Smart (Downloadable)

Siemens Touch Screen and Practical Application Video Tutorials for S7-1200 and S7-200 Smart (Downloadable)

Due to limited cloud storage, the following video tutorials will be available for 30 days until other tutorials are uploaded. I apologize for any inconvenience. 1-01 Basic Knowledge 1 2-02 Basic Knowledge 2 3-03 Basic Knowledge 3 >>>>>>>>>>>>>>>> 6-06 Introduction to TIA Portal Software – 1 7-06 Introduction to TIA Portal Software – 2 8-08 … Read more

In-Depth Comparison of Siemens 840DSL and ONE System PLC Functions: Upgrading from the Same Source to Overcome ‘New System Fear’

In-Depth Comparison of Siemens 840DSL and ONE System PLC Functions: Upgrading from the Same Source to Overcome 'New System Fear'

As the Siemens ONE system gradually comes into view, have you ever felt a sense of unfamiliarity with this “new face,” or even worried that its PLC functions would completely disrupt your usage habits with the 840DSL? Don’t panic! This article will unveil the mysteries of the PLC functions of the 840DSL and the ONE … Read more

How to Encrypt PLC Programs? Insights from Electrical Experts

It is well known that many brands of PLC programs can be decrypted through software, making the program very transparent once decrypted, and thus visible to others. However, completely locking the PLC program when selling the device to others is impractical, as the client would be unable to maintain it. Moreover, confidentiality and rights protection … Read more

Discussion on Error Issues with Siemens TP700 Touch Screen Buttons

Members of the training team encountered a problem during the competition: After completing the PLC project and the touch screen, they were able to download it to the hardware, but pressing the buttons on the touch screen would trigger an error message. The students were unable to resolve this issue on-site, and after the competition, … Read more

The Landscape of PLCs in Industrial Automation

Many believe that the electrical automation industry is favorable, but in reality, it is quite challenging. Let’s start with the essential skill – PLC programming. PLC, the brain of industrial control devices, is essentially standard equipment. However, this brain, like humans, has a “nationality” distinction, which for PLCs means – brand. Each brand develops its … Read more

Siemens Reveals the Future Survival Rules for PLC Engineers at the Industrial Expo

“This time, we are not competing in skills, but in ideas.” — Movie “The Grandmaster” Siemens’ Industrial Copilot is quietly changing factories with code generated on-site at the Industrial Expo, and more shocking than the technology is the complete reshaping of the rules of the industrial world.Here, PLC engineers are no longer competing in programming … Read more

PLC Specialized Training Strengthens the Foundation of Automation Operations

PLC Specialized Training Strengthens the Foundation of Automation Operations

Recently, the Electrical Instrumentation Workshop collaborated with the Materials and Equipment Department to invite senior technical experts from Siemens to successfully hold a week-long “PLC Automation System and Operations Maintenance Specialized Training”. All technical backbones of the Electrical Instrumentation Workshop participated, effectively solidifying their professional foundation through systematic learning of cutting-edge core technologies, providing strong … Read more

Understanding MODBUS TCP/IP with Siemens TIA Portal

Understanding MODBUS TCP/IP with Siemens TIA Portal

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