2. What is PLC
Why it is used ?
Working
Programming languages
Control systems
Applications
Advantages& Dis-Advantages
Conclusion
3. A PLC is an electrical device , It is a computer
with a microprocessor but it has no keyboard,
mouse or monitor
It takes input from the machine via sensors
and transmitters, executes the program in its
memory and generators the outputs to
control machine.
First PLC was introduced in late 1960’s.
4. Whenever there is an automation there you need a
controller like PLC.
why should we choose PLC ? Because,Here you can
control more number of input and output through a
single PLC.
This technology is for better then previous outdated
Technology here less wiring required means less
maintenance.
It is essentially built to withstand very harsh
industrial environments.
5.
6.
7.
8. rack or mounting;
input assembly
output assembly
power supply
programming unit, device, or PC/software
central processing unit (CPU)
11. 1). High Reliability. 2).High speed operation.
3).Small Physical Size. 4). Ease to Maintenance.
5). It is low cost compared with other microcontroller
systems
6). Energy saving
DISADVANTAGES OF PLC:--
.
1).There is too much work required in connecting wires.
2).There is difficulty with changes or replacements.
12. Using Robots in manufacturing and control
perpose
Car parking control
Train control station system
Paper industry
Materials handling
Glass industry
13. Thus by using project, authorized person of
any company avoide the problrm of
security and get better safety then other
systems and remove the manual working
system in their own industry as well as get
better safety in their important data.
