SC-09 programming cable is the conversion cable from RS232 interface (commonly known as COM port) to RS422 interface. It is commonly used in Mitsubishi A series and FX series (FX2/FX2C/FX2N/FX0/FX0N/FX0S/FX1N/FX1S…). PLC, which supports all communication protocols, is used for programming communication between computer and PLC and various monitoring software of upper computer. It can replace Mitsubishi communication module FX-232AW (or FX-232AWC). The RS422 port and RS232 port of the cable have built-in +15kV ESD protection circuit, which can be electrified and plugged in arbitrarily.
If you communicate with Mitsubishi F1/F2 series PLC, you need to install F2-20GF1 communication module.
If your computer uses USB port, please choose USB programming cable USB-SC09.
Main technical parameters:
The RS422 port and RS232 port have 15 kV ESD protection circuit, which can be plugged and unplugged arbitrarily.
Baud Rate: 0-230kbps Adaptive
– Cable length: 3 m, fully shielded, with grounding wire
With a communication light, the LED flickers when communicating
Working temperature: – 20-75 C

The S/S port is the common end of all inputs.
1) S/S is the common end of the input signal, which can either be positive or negative.
2) COM is the common end of the output signal (possibly positive or negative – depending on the specific model)
3) Actually, in your current drawings, the input and output loads share the same DC24V power supply.
A0 – Connect the negative pole of DC24V power supply
B0 – – – Connect the positive pole of DC24V power supply

Serial SC09

USB-SC09. for USB

Mitsubishi PLC FX series has FX3U FX3UC FX3G and so on.
Specific wiring
If FX3U MT is the transistor output interface must be 24V 12V higher than 24V can not be connected
If it is FX3U MR, the output interface of the relay can be 12V 24V 220V 380V.
Specific wiring method: Output has COM points. If you use FX3U MR, your power supply is 220V COM wiring, add a protective switch, output Y0 to connect intermediate relay or AC contactor, etc. If you are connected with intermediate relay Y0, lead a wire to the positive coil of intermediate relay and another 220 V zero wire to one. A circuit can be generated by connecting a wire to the negative terminal of the intermediate relay.

3U is high-end, 3G is basic, 3S is simple, specific can be on Mitsubishi’s official website to find sample manual, 2N is indeed out of production, now 5U are listed. Learning feels that 3U is better, although it is more expensive, but whether in processing speed or accuracy, 3U is the best.

Mitsubishi FX3U series PLC processing speed industry leader, reached 0.065us/basic instructions, built-in 64K large capacity memory, greatly increased the number of internal soft components.
The transistor mainframe has built-in positioning function of up to 100kHz with three axes, and adds new positioning instructions: DSZR with DOG search, DVIT with interruption and TBL, which makes positioning control more powerful and more convenient to use. Up to 10 ADP special adapters can be connected to the left side of the PLC host. Including high-speed input and output adapters, analog input and output adapters and temperature input adapters, these adapters do not occupy system points. FX3U strengthens the instruction function and provides up to 209 application instructions, including communication with Mitsubishi frequency converter, CRC calculation, generating random numbers and so on. Enhanced communication function, its built-in programming interface can achieve 115.2 Kbps high-speed communication, and can expand two communication interfaces, such as RS-232, 422, 485, USB, Ethernet, MODBUS, etc.
FX3G series PLC is the third generation micro-programmable controller launched by Mitsubishi Motor, which is upgraded and developed on the basis of FX1N.
FX3G series PLC has 3-axis positioning function, multiple positioning instructions, and easy to set up. It is the preferred model to build servo/step positioning system.
FX3G series PLC host has two high-speed communication interfaces (RS422 USB) and built-in 32K memory. Two levels of password can be set, each level of 16 characters, which enhances the password protection function. In standard mode, the processing speed of basic instructions can reach 0.21 ugs, which can realize floating point arithmetic. The left side of basic unit can connect up to four FX3U special adapters.

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.