The difference between PLC programming Siemens and Mitsubishi.
With the development of industrial automation, PLC (Programmable Logic Controller) plays an increasingly important role in the field of industrial control. Siemens and Mitsubishi, as the two giants in the field of PLC, occupy a dominant position in the market with their products. However, there are some significant differences between Siemens and Mitsubishi PLC programming that affect the way programmers work and program performance. This article will elaborate on the differences between Siemens and Mitsubishi PLC programming.
1. Programming language.
Siemens' PLC programming language mainly uses TIA Portal (Totally Integrated Automation Portal) software, and its programming languages are Structured Text and Ladder Diagram. Mitsubishi's PLC programming language mainly uses GX Works2 software, and its programming languages are instruction list (IL), ladder diagram (LD) and sequential function diagram (SFC).
Second, the command system.
There are major differences between Siemens and Mitsubishi's PLC command systems. Siemens' instruction system is rich, including arithmetic operations, logical operations, comparative operations, loop control, interrupt control, etc. Mitsubishi's command system is relatively simple, but the commonly used functional instructions are relatively complete, including basic instructions, stepping instructions and functional instructions.
3. Data processing capabilities.
There are also differences in PLC data processing capabilities between Siemens and Mitsubishi. Siemens' PLC data processing capability is strong, supporting a variety of data types, such as integers, floating-point numbers, strings, etc., as well as a variety of mathematical functions and data processing algorithms. Mitsubishi's PLC data processing capability is relatively weak, and it supports fewer data types, but commonly used data types such as integers, floating-point numbers, and Boolean are covered.
Fourth, communication protocols.
There are also differences in the PLC communication protocols of Siemens and Mitsubishi. Siemens' PLC communication protocol mainly uses Profinet and Ethernet IP protocols, while Mitsubishi's PLC communication protocol mainly uses MelSEC communication protocol and CC-Link communication protocol. Therefore, when communicating with other devices or systems, it is necessary to pay attention to the compatibility of the protocol and the way it is converted.
Fifth, the field of application.
Finally, there are certain differences in the application fields of PLC between Siemens and Mitsubishi. Siemens' PLC is more used in energy, chemical industry, food and beverage, etc., while Mitsubishi's PLC is more used in automobile manufacturing, machinery manufacturing, electronic equipment and other fields. Therefore, when choosing a PLC, it needs to be considered according to the specific application field.
To sum up, there are many differences between Siemens and Mitsubishi's PLC programming, including programming languages, instruction systems, data processing capabilities, communication protocols, and application fields. Therefore, when PLC programming, it is necessary to choose the appropriate PLC brand and model according to the specific needs and scenarios, and at the same time, it is necessary to pay attention to the differences and characteristics between different brands.