by Armando Chacon | Dec 12, 2020 | Control Engineering
Consider the simple process control problem illustrated. Here a mixer motor is to be used to automatically stir the liquid in a vat when the temperature and pressure reach preset values. In addition, direct manual operation of the motor is provided by means of a...
by Armando Chacon | Dec 7, 2020 | Control Engineering
A typical PLC can be divided into parts, these are the central processing unit (CPU), the input/output (I/O) section, the power supply, and the programming device. Input/output (I/O) section The I/O system forms the interface by which field devices are connected to...
by Armando Chacon | Dec 7, 2020 | Control Engineering
The programmable controller has eliminated much of the hardwiring associated with conventional relay control circuits. Other benefits include easy programming and installation, high control speed, network compatibility, troubleshooting and testing convenience, and...
