PLC engineering software (MELSEC) GX Works2
Integrated PLC Engineering Software
Ultimate evolution of PLC engineering software
International Standard IEC 61131-3 compliant
Now an easy-to-use engineering software is no surprise.
In addition to its sophisticated usability, the engineering software GX Works2 deploys the global mainstream concepts of “grouping” and “structuring” for fundamental improvement of programming efficiency.
The world-standard engineering style begins with GX Works2.
Promoting program standardization
1Make it easy using FB
What is a Function Block (FB)?
Function Block (FB) is a ladder block frequently used in a sequence program and grouped as a part for reuse within the program.
FB improves program development efficiency and reduces programming errors to ensure higher program quality.
Making parts
Example) This count process program turns the output signal (Y12) ON after the input signal (X1) turns on for 12 times.
Advantages of using FB
Advantage1 : Easier programming
A sequence program is created just by dragging and dropping FBs.
This significantly reduces program development processes.
Advantage2 : Improved readability
Using FBs in a sequence program improves its readability because the program only consists of “boxes” (FBs), inputs, and outputs.
Advantage3 : Reusability
By grouping frequently used program components as parts, they are reused as many times as required.
Operations such as copying an existing program and modifying devices are no longer required.
Advantage4 : Higher quality
By grouping frequently used program components as parts (FBs) and reusing them, program quality will be uniform and independent from the skill levels of the developers.
Advantage5 : Theft prevention
By grouping important sequence program components involving technology expertise as a part (FB) and protecting it with a password, information leak is prevented.
2Useful FB libraries supplied by vendors
What is FB library?
An FB library is a collection of FB parts which is used in simple projects of GX Works2.
By using these FBs, settings and operation of the MELSEC-Q/L modules as well as partner products are configured.
In addition to the custom-made FBs, useful FB libraries supplied by our partners are available. FBs are also offered for iQSS partner products.
The MELSOFT Library has more than 1500 FBs from fourteen companies, and is scheduled to continue expanding.
When how to use an FB is not certain, right-click it on the Project List to display the help information.
