2. Conveyor System

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The conveyor system consists of the following:

  • Siemens S7 1200 PLC with a signal board installed

  • DC motor (labeled M1)

  • Two magnetic field sensors (labeled B1 and B2)

  • A PCB board that (re) wires the I/O of the PLC

  • A 20-pin connector to connect the PLC IO to additional sensors and actuators.

  • Depending on the revision, the board provides four or five sensor inputs (X2, X3, X4, X5 and an optional X6)

  • In addition there are one or two simulation switches (SIM DI) for the sensors X5 and X6. The simulation switches simulate a sensor input, even though no sensor is connected to the sensor connector on the conveyor belt.

  • The PLC has an analog input module, that is wired in a way to measure the PLC’s power consumption and input voltage.

  • A Quick-Chart (in german), showing the conveyor’s IO is available.

Todo

Make yourself familiar with the conveyor belt and identify each of the inputs