Hi all,
To all the people who can have this issue, problem has been solved changing the Slave ID to 255 and don't letting empty adreces.
I was doing an slave table using 2 int16 per data and in some of them I only was calling 1 int16 because this data type was enough. If another PLC reads 10 registers, you cannot leave in UniLogic empty registers and jump adresses, you need to complete all or you will have comunication problems. As you can see on the image, I'm starting on adress 3500 and jumping to 3502, 3502 to 3506 and more. You need to create a tag with the name that you want and put the adreces to fill the spaces between them, so it will be consecutive: 3500,3501,3502,3503,...
Best Regards,
Alex