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Failsafe Wiring Practices

S Bharadwaj Reddy
Failsafe wiring practice is one of those topics that separates control system designers and electricians from other technical specialties. This is one of the areas that show up as problems

PLC Problems Troubleshooting

S Bharadwaj Reddy
Troubleshooting PLCs can be started by checking the healthiness status of CPU, I/O Modules, Fuse Blow-out and different PLC Failure reasons including wiring, field transmitters healthiness status or transmitter configuration,

How a PLC Reads the Data from Field Transmitters

S Bharadwaj Reddy
Instrumentation and control rely on converting physical or process variables into a more useful format for the operator display. Pressure in a pipe is converted to mechanical deflection of a

History of Programmable Logic Controllers (PLC)

S Bharadwaj Reddy
Every control system may be divided into three general sections: input devices (sensors), controllers, and output devices (actuators). The input devices sense what is happening in the process, the controller

Main differences between Sinking and Sourcing circuits ?

S Bharadwaj Reddy
What are the main differences between sinking and sourcing circuits ? Lets check the below animations of sinking and sourcing. Sinking vs Sourcing In a DC circuit, power flows in

PLC Program Examples

S Bharadwaj Reddy
PLC Program Examples Discuss different PLC program examples for Signal lamp task, Valve operation program and make an output switch off when any of the sensors activated. PLC Example 1

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