The "N-EM" are a series of emulators that provide the students the required hardware to emulate the most common automatic systems.
The "N-EM" modules are designed to work with the "AE-PLC" units to obtain the fundamental knowledge of PLC programing, PLC management, etc.
"N-EM-ST" represets an automatic drilling system, which emulates the steps to transport pieces to the drilling zone, emulates a drilling process and transport the drilled pieces to the output area. The different switches and pushbuttons emulate the position of the drilling machine, the position of the transport system, the state of the drilling refrigeration system, etc.