1. Graphical instruction structure: The program is expressed graphically, and the instructions are composed of different graphic symbols, which are easy to understand and remember. In the logic operation part, almost all manufacturers use a ladder diagram similar to the relay control circuit, which is easy to accept. More complex arithmetic operations, timing counting, etc., are generally also represented with reference to ladder diagrams or logical element diagrams, although they are not as symbolic as the logical operation part, but also popular with users.
2. Simplify the process of generating application software: Writing programs in assembly language and high-level languages requires three processes: editing, compiling, and connecting.
3. Simplified program structure: The program structure of Mitsubishi PLC is usually very simple, typical of block structure, different blocks complete different functions, so that the debugger of the program has a clear concept of the control function and control sequence of the whole program.
4. Clear variable constants: the graphics are equivalent to the opcode, which stipulates the operation function, and the operands are filled in by the user, such as: K400, T120, etc. The variables and constants in the Mitsubishi PLC and their value ranges are clearly defined and determined by the product model, which can be found in the product catalog.
5. Strengthen debugging means: whether it is an assembly program, or a high-level language program debugging, it is a headache for editors, and Mitsubishi PLC's program debugging provides complete conditions, using programmers, using Mitsubishi PLC and programmers on the buttons, display and internal editing, debugging, monitoring, etc., and with the support of software, diagnosis and debugging operations are very simple.
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Mitsubishi PLC hardware installation method
1. Use the special crimping pliers for network cable to crimp one end of the cable and the RJ45 crystal head; The other end is connected to the FX2N-485-BD communication template according to the method shown in Figure 1-Figure 3, and the two unused P5S terminals are not connected.
2. Open the panel cover on the left side of the PLC host, and put the FX2N-485-BD communication module ...
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Mitsubishi PLC main maintenance and overhaul content points
The main content of the protection and maintenance of Mitsubishi PLC
Although the failure rate of PLC is very low, the control system composed of PLC can operate stably and reliably for a long time, and it is essential to protect and view it alone. Generally, every six months ...
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Mitsubishi Electric instruction format
(1) Arbitrary axis AC command (G140)
G140 Instruction Address = Axis Address Instruction Address = Axis Address ... ;
Command Address: Arbitrary Axis AC Command (G140) After that, specify the 1-character address set by the parameter (#12071-#12078) to be used for moving commands, etc.
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Mitsubishi PLC writes the holding circuit
There is a very common kind of circuit in Mitsubishi PLC - the persistence circuit. The insistence circuit means that when the external input switch is a button, it can be pressed through the insistence circuit to press the button to insist on the output, similar to the self-locking in the electrical diagram. Let's take Mitsubishi PLC as an example to write a sticking circuit.
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Mitsubishi PLC commonly used model features
FX Series PLC: The FX3G PLC has a built-in large-capacity program memory, 32K steps, and the basic instruction processing speed can reach 0.21μs in standard mode. In the meantime, the FX series 5U is suitable for any industry, and is widely used by small and medium-sized enterprises. For example, this year's very popular mask machine is suitable for FX5U, and he can ...
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Mitsubishi PLC power supply live wire and neutral wire short circuit solution
1. First of all, the power supply should be cut off immediately and the circuit should be admitted whether it has been disconnected.
2. Next, check whether the fuse of the power supply is blown or whether the protector is tripped. Replace the fuse or reset the protector. Envy
3. Fuse ...
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PLC control system daily maintenance process - Mitsubishi
After overhauling and confirming that all connections of the system are accurate, power on the relevant modules until the card indicator is normal.
The initiation process of the system after the scheduled repair is as follows:
(1) Power supply. Open power supply equipment (including throwing up...
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Mitsubishi Electric CNC numerical control system grounding specification
What is the effect of machine tool grounding?
1. Insist that the machine shell and the ground insist on the same voltage.
2. In the event of abnormal external voltage or leakage, the maintenance personnel and the machine tool will not be damaged electrically.
3. Avoid damage to CNC equipment caused by external voltages such as surges.
4. ...
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Mitsubishi participated in the 4th CIIE to introduce the E-JIT green induction solution
On November 5, 2021, the 4th China International Import Expo was grandly held at the National Convention and Exhibition Center in Shanghai. At the 4th CIIE, Mitsubishi Electric's booth was located in Hall 4.1 of the Technical Equipment Zone of the Convention and Exhibition Center, with an exhibition space of 400 square meters. At Mitsubishi Electric's booth, the high-profile event was ...
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Introduction to the Mitsubishi FX PLC Outage Service
1. What is suspension?
The so-called suspension refers to the fact that in the process of sequentially performing the program scanning, when there is a request to respond immediately, the scanning work performed at that time is immediately suspended, and the service work specified in the request is performed first. When the service job is complete, go back to ...
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Electronic gear ratio calculation for Mitsubishi servo motors
When calculating the electronic gear ratio of the Mitsubishi servo motor, the first thing to pay attention to is to check whether your Mitsubishi servo motor has been directly set to XX pulse one turn, if this parameter is not directly set, we can go through a simple formula to calculate the electronic gear ratio of the Mitsubishi servo motor.
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An introduction to the types of data inside the Mitsubishi FX series
A lot of data is used in the internal structure of the PLC and in the user's use program. These data have the following forms in terms of structure or number system.
(1) Decimal number
Decimal numbers are also known as word data in PLC. It is first and foremost ...
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Malfunction caused by capacitance between PLC input lines – Mitsubishi
There is a capacitance between the wires of the cable, and a qualified cable can limit this capacitance to a certain size. It is a qualified cable, when the cable length exceeds a certain length, the capacitance value between the lines will also exceed the required value, when the cable is used for PLC input, the capacitance between the lines will be ...
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The difference between Mitsubishi PLC source type and leak type
Mitsubishi PLC split source type (PNP) or drain type (NPN), here are their differences
1: Leakage logic: When the current flows out of the signal input terminal, the signal becomes ON, which is leakage logic. The current flows through the terminals and has the output characteristics of an NPN transistor.
2: Source logic: When ...
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The role of Mitsubishi inverters
1. Overvoltage maintenance
The output of the motor inverter has the function of voltage detection, and the inverter can actively adjust the output voltage so that the motor does not bear the overvoltage. Even if the output voltage adjustment fails and the output voltage exceeds 110% of the normal voltage, the inverter will stop to maintain the motor.
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Advantages and disadvantages of Mitsubishi's different output types
The three output types of PLC are: transistor output, thyristor output and relay output, what is the difference between these three different output types?
(1) Transistor output:
The biggest advantage is that it is adapted to high-frequency action, and the echo moment is short, generally about 0.2ms, but it ...
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Mitsubishi PLC FX series position control unit
The FX-20GM is a 2-axis positioning machine that can be operated independently.
1. Pulse output unit
1. Point-controlled pulse output unit F2-30GM
2. Pulse output module FX-1PG (for FX2 and FX2C)
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Advantages of Mitsubishi inverter installation reactor
Features of the output reactor:
1. It is suitable for reactive power compensation and harmonic management
2. The primary effect of the output reactor is to compensate for the influence of long-line distributed capacitance, and output harmonic current according to the press; 3. Effectively maintain Mitsubishi inverters and improve the power factor, which can thwart the ...
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Mitsubishi Q Series PLC and GX Works2 connection method
01 USB connection
USB connection requires a device USB driver, generally after installing GX Works2 software, it will automatically install the driver, but a single time due to antivirus software or system reasons, may not be installed, then we need to manually drive the device to the accounting machine. The specific device method we ...
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Functional characteristics of Mitsubishi's various series of servo motors
Mitsubishi servo motor system series: MR-J2S series, MR-J3 series, MR-ES series, MR-E series.
Mitsubishi servo motor MR-J2S series
1. The product also has RS-232 and RS-422 serial communication functions, which can be used by a personal computer equipped with servo setting software.
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