What are the specific differences between Mitsubishi FX2N and FX3U PLC?

1. Operating speed, FX3U is the fastest.
2. Communication ports: FX3U can use three at the same time.
3. High-speed pulse output: FX3U series PLC can control three axes, one more axle than FX2N.
4. FX3U has more extension points than FX2N, and FX2N program can be directly imported into the same type of PLC of FX3U. It has no effect on the machine!
5. The biggest difference between FX3U and FX2N is that 3U has S/S terminal, through S/S terminal, PLC can be changed into leaky input or source input, FX2N does not have this function.

Expanded information:
FX2N is the choice of various applications from 16 to 256 input/output channels; FX2N series is miniaturized, high-speed, high-performance and all aspects are equivalent to the FX series of the highest-grade ultra-small program device. In addition to the independent use of 16-25 points input, it can also be applied to the connection between several basic components, analog control, positioning control and other special purposes. It is a set of PLC that can meet the wide variety of needs.
Connecting the expansion unit or expansion module on the basic unit, the flexible input-output combination of 16-256 points can be achieved. The host with 16/32/48/64/80/128 points can be selected, and the extension module with a minimum of 8 points can be used for expansion. It can be selected freely according to the power supply and output form.
Program capacity: Built-in 800-step RAM (input annotations) can use storage boxes, the maximum can be extended to 16K steps. There are many simple instructions, high-speed processing instructions, variable input filter constants, interruption of input processing, direct output and so on. Convenient instruction digital switch data reading, 16-bit data reading, matrix input reading, 7-segment display output, etc.
Data processing, data retrieval, data arrangement, trigonometric function operation, square root, floating-point decimal operation, etc. Special Purpose, Pulse Output, Pulse Width Modulation, PID Control Instruction, etc. External devices communicate with each other, serial data transmission, ASCII code printing, HEX ASCII transformation, check code, etc. The timer controls data comparison, addition, subtraction, reading and writing of built-in clocks.