The MP bus is a master / slave bus system for the field level of building automation. It was developed by the Swiss company Belimo AG specifically for communication with actuators. The specifications are open, so that other manufacturers can also implement the communication protocol.
Belimo developed a conformity test system for the specifications to ensure that the MP bus standard is correctly implemented in all MP bus devices. WSPLab carries out the conformity tests for this system.
Please refer to Belimo Automation AG's page MP bus conformity for further information.