DET-02

​ELECTRICAL TECHNOLOGY 4

Poll

[POLL] Which schedule do you prefer?

• Tuesday
  [9 hours - 8 am to 5:30 pm]
  
  &
  
  Wednesday
  [6 hours - 8 am to 4:00 pm]
  

• Tuesday
  [8 hours - 8 am to 4:30 pm]
  
  &
  
  Wednesday
  [7 hours - 8 am to 5 pm]
  
  

• Tuesday
  [9 hours - 8 am to 5:30 pm]
  
  &
  
  Saturday
  [6 hours - 11:30am to 5:30 pm]

• Tuesday
  [8 hours - 8 am to 4:30 pm]
  
  &
  
  Saturday
  [7 hours - 11:30 am to 6:30 pm]

Poll

[POLL] Which time of day do you learn best from discussions?

Select all applicable options.

• Morning

• Afternoon

• Evening

• Anytime

PLC PROGRAMMING REFRESHER

Word Cloud

How's your long weekend? ☺️

Word Cloud

Describe your current level of understanding/ how you feel about the current knowledge you have of the Case 1 Module.

Multiple Choice

What does PLC mean?

• Programmable Logic Controller

• Programmable Logical Circuit

• Programmable Line Control

• Process Logic Control

Multiple Choice

Which of the following governs PLC programming languages and structure?

• IEC 61131-3

• ANSI

• ISO 9001

• IEEE 1584

Multiple Choice

What are the main steps in a PLC execution cycle?

• Fetch → Decode → Execute

• Input Scan → Program Scan → Output Scan

• Initialization → Communication Check → Shutdown

• Start Process → Monitor Variables → End Process

Multiple Choice

What type of PLC form factor is shown?

• Compact

• Modular

• None of the Choices

• All of the Choices

Multiple Choice

What type of PLC form factor is shown?

• Compact

• Modular

• None of the Choices

• All of the Choices

Multiple Choice

Which of the following is NOT a programming language defined under the PLC standard specified in IEC61131-3?

• Ladder Diagram (LD)

• Function Block Diagram (FBD)

• Structured Text (ST)

• Python

• Sequential Function Chart (SFC)

Multiple Choice

What is the purpose of the Boolean data type in PLC programming?

• To store numerical values for calculations.

• To represent logical states such as TRUE or FALSE.

• To handle text strings for operator interfaces.

• To measure analog signals from sensors.

Multiple Choice

What is a single execution path in a ladder logic program called? (It is is usually numbered per horizontal line.)

• Rung

• Coil

• Contact

• Circuit

Open Ended

Describe the mistake in this image

Multiple Choice

Is this a latching logic?

• Yes

• No

• It depends

Open Ended

Why is the previous diagram not a latching logic?

Draw

Draw the symbol of a Normally Closed Contact in PLC

Multiple Choice

What does this symbol mean in PLC Programming?

• Closed Coil

• Open Coil

• That is not a PLC Symbol

• Closed Contact

Draw

Draw a PLC program that requires two inputs to be TRUE or ON or ACTIVATED before an output can be ACTIVATED.

Use IN1 and IN2 for the inputs, and OUT1 for the output.

Multiple Choice

In this ladder logic, will Lamp1 still turn ON if iStopPB is activated?

• Yes

• No

Multiple Choice

Does Logic 1 and Logic 2 produce the same results?

• Yes

• No

Multiple Choice

In this ladder logic, will Lamp1 remain ON if iStopPB is released?

• Yes

• No

Multiple Choice

In this ladder logic, will Lamp1 remain ON if iStartPB is pressed and then released?

• Yes

• No

Multiple Choice

Does Logic1 and Logic2 produce different results?

• Yes

• No

Multiple Choice

How would you ensure that a double acting cylinder, controlled by a single solenoid 5/2 way valve, remain extended after extending it?

• Turn off the solenoid after extending.

• Make sure to turn ON only one solenoid.

• Keep the solenoid ON by implementing a latching logic.

• Turn on both solenoids.

Draw

Consider the following devices

FIELD DEVICE - Cylinder 1 (Double Acting Cylinder)
INPUT - xExtendButton
OUTPUT - xCylinderSolenoid (which is a single solenoid 5/2 way valve)

Draw the ladder logic that will ensure that Cylinder1 extends after I press the Extend Button and it remains extended even after I release the Extend Button.

Draw

Consider the following scenario:

Extend Button and Retract Button are both Normally Open Switches.

Draw the required ladder logic if the valve of your double acting cylinder is a 5/2 way single solenoid valve.

Multiple Choice

Which of the following options is a possible address if I connected a field device somewhere in the area that is boxed?

• 0.05

• 100.00

• 101.05

• 1.00

• None of the choices

Multiple Choice

Which of the following is a possible address if I connected a field device somewhere in the area that is boxed?

• 0.05

• 1.01

• 101.01

• 100.08

• None of the choices

Draw

Encircle the terminal /label that that has the address 1.01

Specify whether it is an input or an output.

Draw

Encircle the terminal /label that that has the address 101.04

Specify whether it is an input or an output.

Draw

Encircle the COM terminal that is allotted for 100.06

Fill in the Blanks

Multiple Select

What is the name of a PLC contact or coil that exists only in the program and has no direct physical connection?

• Input Relay

• Output Coil

• Internal Bit

• Sensor Contact

Multiple Choice

Based on the sample I/O mapping reference (of a CP1L PLC) in the image, which of the following Data Areas can NOT be used as internal bits?

• CIO Area
  CIO 0 to CIO 1

• Work Area

  W0 to W511

• Holding Area

  H0 to H511

• CIO Area

  CIO 3 to CIO 99

Multiple Choice

Based on the symbols list shown in the image, which of the symbols uses an internal bit?

• TurnOnLamp

• InternalR1

• iStartPB

• oLamp2

Multiple Choice

In PLC programming, do all output coils automatically have corresponding coil contacts NO and NC that is ready for use?

• Only if it's an internal bit.

• Yes

• No

• Only if it's a CIO bit.

Open Ended

What is the shortcut key for adding a coil?

Open Ended

What is the shortcut key for inverting a coil?

Open Ended

What is the shortcut key for adding an output?

Open Ended

What is the shortcut key for adding horizontal connection lines?

Open Ended

What is the shortcut key for adding vertical connection lines?