2. Plcs Are Armored For Severe Conditions(Such As Dust, Moisture, Heat, Cold).

3. The Structure Of A Plc Can Be Divided Into Four Parts.They Are Input/Output Modules, Central Processing Unit(Cpu).

1. Armored for severe conditions and have the facility for extensive input/output (I/O) arrangements.

2. Read limit switches, analog process variables and the positions of complex positioning systems.

3. Operate electric motors, pneumatic or hydraulic cylinders, magnetic relays, solenoids, or analog outputs

4. Industry, Sequential relay control, motion control.

5. process control, distributed control systems and networking

1. Power industry, the elevator industry, parking, automobile, auto ancillary.

2. feed industry, aluminum smelting machines, refrigeration industry.

3. steel industry, combustion control systems, non-ferrous metal smelting.

4. glass industry, construction machinery, textile machinery, water treatment