This is a controller with only 2 switching states, that is, the output signal is switched ON and OFF depending…
Modbus is an open standardized communication protocol that was founded by Modicon. Initially it was designed for the communication among…
Analog signals pass continuously through a full range of values for example a measuring device converts the process variable (PV),…
Consider the following figure illustrating a position control system employing a microprocessor-based controller with parallel ports: Figure 1.0 Microprocessor-based controller…
A microprocessor by itself is not a computer. To be functional, the microprocessor must be connected to other ICs that…
When steam-heated reboilers are used in distillation columns and the heating medium is steam, a flow control loop for the…
Sercos is a short form for serial real-time communication system; a digital automation bus that interconnects motion controls, drives, I/O,…
The cycloconverter provides direct ac to ac transformation with control over both the output voltage magnitude and output frequency. It…
Let’s consider the industrial process control system shown below: Figure 1.1 Industrial Process Temperature Control System The requirement is to…
Let’s consider the functional diagram below: Figure 1 DC motor power op-amp speed controller functional diagram The D/A converter outputs…
