When an operator continuously read the process temperature and varies heating or cooling input so that the temperature is maintained to the set value, it it called manual control mode. In industrial automation, measurements & variations are done automatically on a continuous basis. Manual control may be used for non-critical applications where major parameter upset is unlikely to happen, where process changes slowly and where operator attention is not very much critical.
What is Industrial Automation ?
When products and manufacturing control is delegated to computers and PLC Systems, it is known as Industrial Automation. Manufacturing assembly lines as well as stand-alone machine , robotic devices come in this category.
What are the different components used in industrial automation?
What are the different control systems used in industrial Automation?
A PLC an electronic device/industrial computer which performs discrete or sequential logic in manufacturing processes, assembly line, standalone machines. Initially PLC system was manufactured to replace mechanical timers, counters, relays. Today PLC systems are used successfully to achieve complicated control operations in a factory/plant. Purpose of PLC System is to monitor process parameters and achieve desired process operations. A sequence of instructions or PLC Program is developed by the user in PLC Programming software and placed into PLC memory. The purpose of this program is to operate PLC System such that desired manufacturing process results are achieved.
PLC System evolved from conventional relay based logics in early 70s. First time PLC system was used for automotive plants. Traditionally in auto plants those days, plants were shut down for a very long time whenever there was a change in model of the car or vehicle. PLC systems with the help of PLC Programming greatly reduced changeover time. Wiring of new or revised relay & control panels was so time consuming, it used to take months. The PLC programming replaced the rewiring of a panel full of wires, timers, counters, relays, & other components. The PLC system helped reduce the changeover time to a matter of few days.
What is Industrial Automation ?
When products and manufacturing control is delegated to computers and PLC Systems, it is known as Industrial Automation. Manufacturing assembly lines as well as stand-alone machine , robotic devices come in this category.
What are the different components used in industrial automation?
- Field Sensors for sensing the parameters
- Transmitters for conditioning and converting raw signal into electrical signal
- PLC, DCS or PID based control systems
- Final control elements such as drives, actuators, , Solenoid valves, coils, control valves, Indicating lamps, hooters.
What are the different control systems used in industrial Automation?
- PID Controller based
- Programmable logic controller PLC based
- Distributed control system DCS based
- PC Based industrial automation system
A PLC an electronic device/industrial computer which performs discrete or sequential logic in manufacturing processes, assembly line, standalone machines. Initially PLC system was manufactured to replace mechanical timers, counters, relays. Today PLC systems are used successfully to achieve complicated control operations in a factory/plant. Purpose of PLC System is to monitor process parameters and achieve desired process operations. A sequence of instructions or PLC Program is developed by the user in PLC Programming software and placed into PLC memory. The purpose of this program is to operate PLC System such that desired manufacturing process results are achieved.
PLC System evolved from conventional relay based logics in early 70s. First time PLC system was used for automotive plants. Traditionally in auto plants those days, plants were shut down for a very long time whenever there was a change in model of the car or vehicle. PLC systems with the help of PLC Programming greatly reduced changeover time. Wiring of new or revised relay & control panels was so time consuming, it used to take months. The PLC programming replaced the rewiring of a panel full of wires, timers, counters, relays, & other components. The PLC system helped reduce the changeover time to a matter of few days.
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