Here are just a few examples of plc programming applications that have been succesfully completed and are in use today.
Manufacturing Industry
- Lead acid battery plant, complete manufacturing system
- Extruder factory, silo feeding control system
Travel Industry
- Escalator operation, monitored safety control system
- Lift operation, monitored safety control system
Aerospace
- Water tank quenching system
Printing Industry
- Offset web press print register control system
- Multi stage screen washing system
Food Industry
- Filling machine control system
- Main factory feed water pump duty changeover system
Textile Industry
- Indutrial batch washing machine control system
- Closed loop textile shrinkage system
Hospitals
- Coal fired boiler fan change-over system
Film Industry
- Servo axis controlled camera positioning system
Corrugating
- Main corrugator machine control system
- BOBST platten press drive and control system
Plastics Industry
- Extruder factory, silo feeding control system
- Injection moulding control system
Agriculture
- Glasshouse heating, ventilation & watering system
Foundry
- Overhead transportation system from casting process to shotblasting machine
Leisure
- Roller coaster ride and effects control system
- Greyhound track 'Rabbit' drive system
As I said these are just a few examples of plc programming applications, there are many many more in use today. In point of fact, there are far too many to list here, the PLC is today's unseen hero controlling a massive range of equipment.
Manufacturers such as Mitsubishi, Allen Bradley, Omron and Siemens have been around for a long time and produce very high quality equipment through years of development (they should be paying me for advertising). It is quite probable that your machines have one of these makes controlling it.
So spare a thought for the Programmable Logic Controller as you journey through this site, it does do a lot of work and it doesn't get out much!
article from machine-information-systems.com
