Neverov

That is, before reading the project, create an empty project ? And only then read? Immediately after opening the program (without creating a new project), I clicked to read the project.

 

Unfortunately I am not familiar with Node Js. Reading from writing differs only by the function code inside the ModBus message. I always look at this cheat sheet when working with ModBus. https://ipc2u.com/articles/knowledge-base/detailed-description-of-the-modbus-tcp-protocol-with-command-examples/

A working controller FX3 on factory. It was necessary to subtract the project (using GX Works2) to save it in case of a PLC breakdown. Never faced such warnings before. What could it be because of? How to make sure that the read project can be used in the event of a PLC breakdown?

FX5U have ModBus TCP (slave/Master). Maybe it will be easier on it? For ModBus TCP (slave) it is not necessary to write a program inside the PLC. In the "Enable" settings and you're done.

Become familiar with the following concepts:  - Latch (1) - Latch (2)  

Need more CapsLock.

Here's an example. Can anyone have a more elegant solution? forums.mrplc.com.gx3  

BMOV https://forums.mrplc.com/index.php?/topic/40236-dword_to_real/

Is this what you want?

Throw off please projects, too lazy to type yourself.

I don't have a GT2107, but these projects should work. forums.mrplc.com - FX5U.gx3 forums.mrplc.com - GT2107.gx3.GTX

https://www.youtube.com/watch?v=q7O7EeNBTZA  GS2107 differs from Gt2107 with stripped-down functionality. Everything else is the same. When writing a project to the panel, select USB instead of Ethernet

Explore the tutorials. https://www.mitsubishielectric.com/fa/assist/e-learning/index.html https://www.mitsubishielectric.com/fa/assist/e-learning/eng.html#en_bg https://www.youtube.com/watch?v=Rndhh9UVFWI https://www.youtube.com/watch?v=XSuR12IIi94    

Probably an old version of the program ?? https://www.mitsubishielectric.com/fa/download/software/hmi/got/index.html