For example, if we want to have more than 16 digital output values (e.g. 32),
we first need to change the DIGITAL_BUF_SIZE from 16 to 32 in simlink.cpp.
To work with OpenPLC runtime accordingly, we need to change the DIGITAL_BUF_size
in the webserver/core/hardware_layers/simulink.cpp and webserver/core/server.cpp as well.