KC868-A32 24VDC input voltage acceptable to Optocopplers?

[REINALDO_RIBEIRO]

Hi,
thanks for your fast answer. I got it wrong "dry contacts" means the inputs do have internal pullups and have to be pulled to logical gnd to signal. Nevermind, my bad. I now already put my order on ali. If things work out as I feel they will do we will share a lot of business in soon future  
best regards

Hello, i am trying my A32 board and can´t work with the digital inputs. 
I need to chage anything in the code to enable the digital inputs ? 
To use the digital Inputs is only conecting the Input to the ground or do a need o to use 12v to activate the input? 

Best Regards
Reinaldo Ribeiro