Monitor Digital Signals
In the diagnostics mode all signals passed to and from the controller internal logic can be monitored. A signal tap is connected in the diagnostics module and the signal states are displayed on the web GUI or the controller GUI.

A  | Controller internal state machine and logic functions  | 
B  | Digital output signal path  | 
C  | Digital input signal path  | 
D  | Diagnostics module  | 
E  | User interface  | 
F  | Output signal tap  | 
G  | Input signal tap  |