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I'm trying to use the accelerate FB in Visilogic, using a V430-J-TR34. I wanted to write a very simple program to make sure I can use this correctly, and I can't get it to work. Can anybody help me to figure out why this program doesn't work? I want to increment/accelerate MI 0 while the button on my HMI is pressed. If the button is released, the value should stop changing. Pressing the reset button will reset its value back to 1.

I'm scratching my head as to what I'm doing wrong here...

Accelerate Test.vlp

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My Problem was solved by AlexUT and support. I was running the latest version, but had to update the PLC OS. From support:


Which version of software are you working with? Please ensure you are using 9.8.80, and then go to Help > Check for updates > Operating System. 

Then please update the controller of the OS. 

There was an issue with the acceleration function block in previous versions. 


Thank you for the help!

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