How do you use compare in ladder logic?

The following is a list of the comparison instructions in SLC 500: EQU - Equal. NEQ - Not Equal. LES - Less Than. LEQ - Less Than or Equal. GRT - Greater Than. GEQ - Greater or Equal. MEQ - Masked Comparison for Equal. LIM - Limit Test.

Course Content

Introduction to the Course

24m 6s

How to use LearnVern

3m 20s

What is Industrial Automation?

9m 15s

Introduction to PLC and Relays

21m 28s

Understanding the PLC Architecture for Industrial Automation

17m 1s

Comparison of PLC & Relay System

20m 20s

Advantage of PLC for Industrial Automation

15m 19s

Assignment of Introduction to PLC

47s

Quiz : Introduction to PLC

PLC Selection Criteria for Industrial Automation

16m 29s

Types of PLC for Industrial Automation

15m 54s

PLC Input Devices

19m 8s

Analogue Input and Output in PLC

13m 20s

Concept of Automation in Industry

19m 49s

Sinking - Sourcing and NPN-PNP Devices for Industrial Automation

14m 25s

PLC Analog cards in Industrial Automation

10m 41s

Types of Memory used in PLC Industrial Automation

10m 35s

PLC Signal Flow Diagram in Automation

12m 59s

Assignment of PLC selection criteria, types and I/O modules

Quiz : PLC selection criteria, types and I/O modules

PLC Programming using Ladder Logic

15m 23s

Installation of RSLogix Micro Starter Lite

12m 5s

Elements of RSLogix Micro Starter Lite

15m 35s

How to Programme and Run the Logic?

19m 21s

PLC Programming of OR Logic Gate

8m 32s

PLC Programming of AND and NOT Logic Gate

12m 55s

PLC Programming of NAND,NOR and XOR Logic Gate

16m 36s

Ladder Logic of Push Button Latching

14m 10s

Ladder Logic of Interlock Circuit

21m 19s

Trick to Optimize Use of I-O in Ladder Logic

5m 39s

Ladder Programming of Motor Operation

14m

Ladder Logic of Motor Forward Reverse Interlock Protection

20m 35s

Use Timer in Ladder Logic

17m 28s

On Delay Timer in Ladder Diagram

8m 33s

Off Delay Timer in Ladder Diagram

11m 10s

Retentive Timer in Ladder Diagram

12m 7s

Star to Delta Motor Starter in Ladder Logic

27m 56s

Counter-up with On Delay Timer Logic

9m 5s

Countdown with Reset Function in Ladder Logic

12m 34s

Up-Down Counter Logic with Application in Ladder Logic

9m 7s

Comparator LIM Block in Ladder Logic

7m 29s

Comparator EQU,LES,LEQ,NEQ,GRT and GEQ Blocks in Ladder Logic

18m 24s

Math Operations in Logic

30m 9s

Move Blocks in Ladder Logic

10m 11s

Logical Gate Blocks in Ladder Logic

22m 2s

BCD Conversions in Ladder Logic

15m 35s

Bit Shift Left and Right in Ladder Logic

13m 55s

Scale with Parameters

20m 35s

Hacks for Ladder Logic

12m 14s

Assignment of Programing and Software

3m 13s

Quiz : Programing and Software

Water Tank Filling Control Logic

28m

Chemical Mixing Process Logic

33m 5s

Traffic Light Signal Control Logic Part - 1

23m 42s

Traffic Light Signal Control Logic Part - 2

36m 40s

Elevator Control Logic

01h 10m 50s

Assignment of Case Studies

4m 28s

Quiz : Case Studies

Hardware Overview with Wiring Diagram Part 1

18m 21s

Hardware Overview with Wiring Diagram Part 2

17m 32s

Hardware Overview with Wiring Diagram Part 3

4m 8s

Serial USB Driver Installation & Uploading the Programming

16m 49s

PLC Program Logic Testing

6m 18s

PLC Latching Logic Circuit with Push buttons

24m 41s

Interface Proximity Sensor to PLC

15m 15s

Water Tank Level Controller by using PLC

13m 17s

Chemical Mixing Process using PLC

19m 4s

Course Summary

5m 5s

Interview Questions

12m 7s

Career Guideline

Comparator LIM Block in Ladder Logic

Industrial Automation With PLC Programing and Software

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Discussion

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Comparator LIM Block in Ladder Logic

Course Content

Introduction to the Course

24m 6s

How to use LearnVern

3m 20s

What is Industrial Automation?

9m 15s

Introduction to PLC and Relays

21m 28s

Understanding the PLC Architecture for Industrial Automation

17m 1s

Comparison of PLC & Relay System

20m 20s

Advantage of PLC for Industrial Automation

15m 19s

Assignment of Introduction to PLC

47s

PLC Selection Criteria for Industrial Automation

16m 29s

Types of PLC for Industrial Automation

15m 54s

PLC Input Devices

19m 8s

Analogue Input and Output in PLC

13m 20s

Concept of Automation in Industry

19m 49s

Sinking - Sourcing and NPN-PNP Devices for Industrial Automation

14m 25s

PLC Analog cards in Industrial Automation

10m 41s

Types of Memory used in PLC Industrial Automation

10m 35s

PLC Signal Flow Diagram in Automation

12m 59s

Assignment of PLC selection criteria, types and I/O modules

PLC Programming using Ladder Logic

15m 23s

Installation of RSLogix Micro Starter Lite

12m 5s

Elements of RSLogix Micro Starter Lite

15m 35s

How to Programme and Run the Logic?

19m 21s

PLC Programming of OR Logic Gate

8m 32s

PLC Programming of AND and NOT Logic Gate

12m 55s

PLC Programming of NAND,NOR and XOR Logic Gate

16m 36s

Ladder Logic of Push Button Latching

14m 10s

Ladder Logic of Interlock Circuit

21m 19s

Trick to Optimize Use of I-O in Ladder Logic

5m 39s

Ladder Programming of Motor Operation

14m

Ladder Logic of Motor Forward Reverse Interlock Protection

20m 35s

Use Timer in Ladder Logic

17m 28s

On Delay Timer in Ladder Diagram

8m 33s

Off Delay Timer in Ladder Diagram

11m 10s

Retentive Timer in Ladder Diagram

12m 7s

Star to Delta Motor Starter in Ladder Logic

27m 56s

Counter-up with On Delay Timer Logic

9m 5s

Countdown with Reset Function in Ladder Logic

12m 34s

Up-Down Counter Logic with Application in Ladder Logic

9m 7s

Comparator LIM Block in Ladder Logic

7m 29s

Comparator EQU,LES,LEQ,NEQ,GRT and GEQ Blocks in Ladder Logic

18m 24s

Math Operations in Logic

30m 9s

Move Blocks in Ladder Logic

10m 11s

Logical Gate Blocks in Ladder Logic

22m 2s

BCD Conversions in Ladder Logic

15m 35s

Bit Shift Left and Right in Ladder Logic

13m 55s

Scale with Parameters

20m 35s

Hacks for Ladder Logic

12m 14s

Assignment of Programing and Software

3m 13s

Water Tank Filling Control Logic

28m

Chemical Mixing Process Logic

33m 5s

Traffic Light Signal Control Logic Part - 1

23m 42s

Traffic Light Signal Control Logic Part - 2

36m 40s

Elevator Control Logic

01h 10m 50s

Assignment of Case Studies

4m 28s

Hardware Overview with Wiring Diagram Part 1

18m 21s

Hardware Overview with Wiring Diagram Part 2

17m 32s

Hardware Overview with Wiring Diagram Part 3

4m 8s

Serial USB Driver Installation & Uploading the Programming

16m 49s

PLC Program Logic Testing

6m 18s

PLC Latching Logic Circuit with Push buttons

24m 41s

Interface Proximity Sensor to PLC

15m 15s

Water Tank Level Controller by using PLC

13m 17s

Chemical Mixing Process using PLC

19m 4s

Course Summary

5m 5s

Interview Questions

12m 7s

Career Guideline

FAQs

The following is a list of the comparison instructions in SLC 500:

EQU - Equal.
NEQ - Not Equal.
LES - Less Than.
LEQ - Less Than or Equal.
GRT - Greater Than.
GEQ - Greater or Equal.
MEQ - Masked Comparison for Equal.
LIM - Limit Test.

When comparing two values, comparers are employed. Let's say we're comparing two physical quantities (temperature, pressure etc.). The equal command can be used to determine whether a first comparison value is equal to a second comparison value.

The Limit Test, or LIM, is an instruction that compares the provided operand to two limits: the lower limit and the upper limit. The instruction will set the output to TRUE if the value is larger than the lower limit and less than the upper limit.

When the test value is between the lower and upper limits of the lower and upper limits, the LIM instruction passes power.

To see if two values are equal, use the NEQ command.