PLC can perform a variety of functions

PLCs have a rich instruction set, various I/O interfaces and communication interfaces, large memory capacity, and a reliable operating system, thus possessing a wide range of functions.
Signal acquisition function: It can acquire switch signals, analog signals and pulse signals.
Output control function: can control output switching signals, analog signals and pulse (pulse train or pulse width modulated pulse) signals.
Logical processing functions: It can perform various bit, byte, word, and double-word logical operations.
Data processing functions: It can perform various single-word and double-word integer operations, and some can also perform floating-point operations.
Timing function: Allows for delay or timed control, with timing accurate to milliseconds. Some models also have a built-in real-time clock.
Counting function: It can perform counting, and the high-speed counting frequency can reach hundreds of kHz.
Interrupt handling function: It can implement various internal and external interrupts to improve the response speed and accuracy of input.
Program and data storage function: It can store system settings, programs and data, and ensure that the data is not lost when power is off.
In addition, it also has functions such as network communication, self-testing, and self-diagnosis.
The rich functionality of PLCs enables their widespread application; at the same time, it also creates conditions for the automation, remote operation, informatization, and intelligentization of industrial systems.