Example: Visualization of the combustion air fan in operation

After the combustion air fan starts, it should be visualized green in the HMI.

For this purpose, the digital channel ("Combustion air fan in operation" = channel 64) is required. The channel receives information via a power contactor that the combustion air fan has started and forwards this signal to the HMI in which the active combustion air fan can be viewed.

The figure below illustrates this example:

The digital channel required for this example must be configured as follows:

Digital channel 64