The paper deals with low-level fieldbus interconnections aimed at simple digital measurement and control applications employing ASI (Actuator/Sensor Interface), which specifies an industrial communication connection of foremost binary sensors and actuators with controlling site. This contribution presents ASI-related results of the project focused on the fieldbus management and interconnection
... [Show full abstract] techniques using two interconnectivity case studies. Launching with the discussion of ASI concepts, the paper describes also flexible hardware and software architectures of the employed prototyping board. The kernel of the paper stems from two case studies that offer more detailed insight into the system design employing ASI interconnections. The first case deals with a regular implementation of the gateway between ASI and NBIP (Nine-Bit Inter-processor Protocol), which exemplifies a microcontroller-dedicated protocol, whereas the second case introduces the ASI-ASI coupler enabling to realize hierarchical ASI systems.