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-CST" represents an automatic traffic signal control, which emulates a traffic crossroad. We can select the operation mode choosing between day and night, and control the traffic state using traffic lights and vehicle detectors. The pedestrians can request to stop the vehicles flow by pushing a button.