The aluminum bracket structure, can be fixed on the desktop, power integration in the 220 V AC power and 24 V DC power supply, with 4-20 mA analog and 0 to 10 V adjustable signal source, module take the hanging box form, flexible combination.

The host module adopts with 14 digital input, 10 relay output and two analog input, equip with 16 in 16 out of digital modules and configuration into 4 in and 2 out  analog module, CPU module hanging box panel, integrated digital input switch, can do digital  input simulation experiment.

Traffic lights hanging box: through yellow, green and red three color LED lights to simulate four directions of traffic lights, with digital tube, the countdown programming can be simulated.