Instrumentation Tools

What is Integral Flow Orifice Assembly?

S Bharadwaj ReddySeptember 11, 2019September 18, 2019

Integral Flow Orifice Assembly is used when Differential Pressure Transmitter has to be directly mounted on the orifice assembly. This eliminates the cost of installation of Differential Pressure Transmitter with...

PLC Program to Simulate Gate Array Logic

S Bharadwaj ReddySeptember 10, 2019

Develop a PLC program that will simulate the gate array logic as shown in the below figure. Gate Array Logic Simulate the given gate array logic in ladder logic operation....

Basics of Industrial Communication Networks

S Bharadwaj ReddySeptember 9, 2019September 11, 2019

Communication networks may be used in control systems to pass data between field devices and PLCs, between different PLCs, or between PLCs and personal computers used for operator interface, data...

PLC Programming Example for Motor Forward and Reverse Control

S Bharadwaj ReddySeptember 7, 2019September 13, 2019

Make the example ladder logic to control the motor in forward and reverse direction using PLC Programming with limit switches as sensors. PLC Example for Motor The Workpiece starts moving...

Data Handling Instructions in PLC Programming

S Bharadwaj ReddySeptember 5, 2019September 5, 2019

We already discussed Timers, counters and other instructions used in PLC programming. Sometimes we may need some operations in the PLC programs which involve blocks of data operations. The instructions...

Program Flow Control Instructions in PLC Programming

S Bharadwaj ReddySeptember 4, 2019September 4, 2019

Program Flow Control Instructions used to control the sequence in which your program is executed. Control instructions allow you to change the order in which the processor scans a ladder...

Comparison Instructions in PLC Programming

S Bharadwaj ReddySeptember 3, 2019September 4, 2019

Comparison instructions in PLC are used to test pairs of values to condition the logical continuity of a rung. Thus, comparison instructions would seldom, if ever, be the last instruction...

Types of Instructions in PLC Programming

S Bharadwaj ReddySeptember 1, 2019September 17, 2019

What is a Ladder Diagram? A Ladder Diagram is one of the simplest methods used to program a PLC. It is a graphical programming language that evolved from electrical relay...

How to use JUMP Instruction in PLC Ladder Logic?

S Bharadwaj ReddyAugust 31, 2019August 31, 2019

Jump instruction in ladder logic is used to skip some process or rungs according to the requirement. It is paired with Label which is used to limit the skipping the...

Wrong Installation of Horn Type Radar Level Transmitter on Sloping Tank

S Bharadwaj ReddyAugust 29, 2019August 30, 2019

In this article, we discussed the incorrect installation of Horn type RADAR level transmitters on slopping tank for oil and gas, refinery industries. We measure the standout of the nozzle...