Discrete Input module block diagram and wiring in PLC
- 1. I N S T R U M E N T A T I O N & C O N T R O L E N G I N E E R I N G D E P A R T M E N T patel parixit.140410117035 1 SARDAR VALLABHBHAI PATEL INSTITUTE OF TECHNOLOGY PATEL PARIXIT H.-140410117035 GUIDED BY :- DR. RAKESH B. PATEL
- 2. Topic:-Discrete Input module block diagram and wiring Programmable Logic Controller patel parixit.140410117035 2
- 3. I/O devices connected to PLC patel parixit.140410117035 3
- 4. What is discrete input ?? patel parixit.140410117035 4 The most common type of I/O interface module is the discrete type. This type of interface connects field input devices of the ON/OFF nature such as selector switches, pushbutton, and limit switches. The classification of discrete input covers bit oriented input.
- 6. Input module perform patel parixit.140410117035 6 PLC input module perform four task. 1. Sense when a signal is received from a sensor on the machine. 2. Convert the input signal to the correct voltage level for the particular PLC. 3. Isolate the PLC from fluctuations in the input signal’s voltage or current. 4. Send a signal to the processor which sensor originated the signal.
- 7. discrete input module block diagram patel parixit.140410117035 7
- 8. discrete input module simulation patel parixit.140410117035 8
- 9. discrete input module simulation patel parixit.140410117035 9
- 10. discrete input module simulation patel parixit.140410117035 10 Input logic is “high”
- 11. discrete input module simulation patel parixit.140410117035 11 LED is ON
- 12. discrete input module simulation patel parixit.140410117035 12 Voltage across LED =1.869V So, LED ON
- 13. Input module wiring connection patel parixit.140410117035 13