List the benefits offer by PLC. Explain at least four in brief.
[3 marks]Why programming tools are essential part with PLC operation? How it differ from Personal Computer as programming tool? Explain it technically.
[4 marks]List the input field and output field device and draw its equivalent ladder Symbols.
[7 marks]Explain differences between fixed I/O’s and modular I/O’s.
[3 marks]What is the advantages offer by HMI? Explain it in details from PC as programming tool? Explain it technically.
[4 marks]Develop Ladder logic diagram for each of the following Boolean expressions using AND, OR, and NOT gates:
[7 marks]Y= ABC + D
[ marks]Y= AB + CD
[ marks]Y= ( A+ B ) (C +D)
[ marks]Draw and describe Input Image Table and Output Image table.
[7 marks]How will High Speed Counter module works? Describe with Suitable Application
[3 marks]Describe with neat sketch and operation with PLC ( 1) Proximity Sensor (2) Magnetic Reed Relay.
[4 marks]Prepare Ladder Logic Diagram (LLD) for following process control. Fill tank (T) fully by opening inlet solenoid valve SV-1. When it full, open outlet valve SV-2 for 5 sec. Either open SV-1 for 10 sec or till the tank is full which will occur first than open SV2 again. Repeat it continuously.
[7 marks]Why Latch and Unlatch Instruction required in PLC Programming? How it is close to retentive timer operation.
[3 marks]Draw and describe ON Timer delay instruction with suitable example
[4 marks]Prepare LLD to count how many persons attend reception in dining hall? Use counter at entry as well as at exit.1
[7 marks]How floating point math instruction is differ than conventional math instruction ? Explain for ADD, SUB, MUL and DIV instruction.
[3 marks]Draw and design LLD to generate wave from with 40% duty cycle at digital output terminal when toggle switch is ON. Take output frequency y generated by assigning TIMER as 5 sec On time and 3 sec OFF timer
[4 marks]Prepare LLD to Turn-On Lamp-1 for 5 sec, Lamp-2 for 10 sec, Lamp-3 for 15 sec and Lamp-4 for 20 sec sequentially ( At a time only one lamp will be ON). Repeat it continuously.
[7 marks]Why tuning is required in PID Module? Describe PID module along with technical reason.
[3 marks]Justify the need of Interrupt in PLC operation. Describe following instruction 1 ENI 2. RETI 3. DTCH 4. CLR_EVNT
[4 marks]Develop LLD an alarm annunciator system. Switch OFF the lamp when 120 sec passed without any acknowledgement.
[7 marks]How will you implements communication network for PLC? Explain with industrial communication.
[3 marks]Draw and illustrate twin axis Robot with PLC sequencer control
[4 marks]Prepare LLD for following Level Control System. Be sure motor star when Low Level switch is OFF(Open) and Overhead tank High switch is Open ( OFF).
[7 marks]Enlist data handling Function. Describe for data move and rotate instructions.
[3 marks]Describe with ladder diagram, Structured Text Function block diagram Instruction list sequential function chart type PLC Languages
[4 marks]Prepare LLD for Batch process control 1. Open SV-1 to fill fluid in the tank till level switch will be ON. Otherwise OFF. 2.Be sure once level achieved, SV-2 will open, 3. Motor will be started, Wait till temperature achieved. 4. Stop motor. OFF SV-2 5. ON SV-3 for 10 sec 5. Repeat from step 1 . Be sure once SV-22
[7 marks]