Mitsubishi PLC literacy knowledge - Solutions - Huaqiang Electronic Network

Probe domestic switch needle KG-300K needle head diameter is 3.0mm normally open switch needle

SMD aluminum electrolytic capacitor

EL-C1600N100013-B

1. The hexadecimal problem is used in Mitsubishi plc in binary, octal, decimal, hexadecimal, 2-10 (BCD), etc. It is necessary to master the conversion of 2-8, 2--- --8, think of the binary number from the back, every 3 is divided into a group, each group is divided into octal, such as 1110111-----1 110111-----167
When 8-----2, each bit of the octal number is separated, and then each bit is converted into a binary number and combined. Such as 157---------1 101 111----1101111
2-16 conversion, 2------16, think of the binary number from the back, every 4 is divided into a group, each group is divided into hexadecimal, such as 1011111-----101 1111-----5F
When 16-----2, separate each digit of the hexadecimal number, and then divide each digit into a binary number and combine them. Such as 47-----0100 0111------1000111
In the FX series PLC, X and Y are in octal, ie X0---X7, X10----X17, Y0-----Y7.........X8. Others are not present. Others The device is in decimal.
In A, Q series PLC, X, Y are in hexadecimal, ie X0----XF, X10---X1F, Y0----YF

2. Programming software
FX-GPWIN is only suitable for FX series plc programming
GX-Developer is suitable for FX, Q, A series PLC programming
GX-WORK2 is suitable for FX, Q, L series PLC programming
When installing GX-Developer, please install the SETUP in ENVMEL under the installation folder. After installation, click SETUP under the installation folder. Please pay attention to the options in the middle of the installation, be careful not to install the monitor mode.
Seeing that there are still a lot of questions about whether to support WIN7, I said that at present, you want to have good stability, you have to use XP for industrial control. Some support WIN7--32 bit, but do not support WIN7--64 bit.

3. Programming line problems often see how the computer and PLC communication are not the same, except for the very few comrades who do not power the PLC, most of them should be the port setting problem of the communication line.
The programming line mainly has several SC-09, USB-SC-09, USB (printer line).
When using SC-09, if the computer does not have RS232 interface, you need to configure USB/RS232 converter. When purchasing this converter, please tell the merchant that it is used for PLC programming (I bought it, it can't be used for single chip microcomputer). use). Need to install the driver, after installing the driver, there will be the virtual RS232 port number of the converter in the device manager of the computer, such as COM4, ​​the port number should be selected when downloading and uploading during programming.
When using the USB-SC-09 cable, you need to install the driver. After installing the driver, there will be the virtual RS232 port number of the converter in the device manager of the computer, such as COM4. Please select this port number when downloading and uploading during programming.
When the Q series PLC is connected using a USB cable, the first connection will find new hardware, and the driver is in the installation directory MELSEC\Easysocket\USBDrivers.

4. Array problems often see someone asking like this question MOVH0003K1Y000
First you need to understand that H and KH are generally hexadecimal values, and K is a decimal value.
In the meaning of KmXn, KmYn, KmMn, etc., I personally call it an array. An array consists of 4 adjacent components. It can represent binary 0----1111, which is 0-decimal. --15, hexadecimal 0----F. Km means that there are several arrays, Xn, Yn, etc., which represent the start bit of the array. For example, K1Y0 is Y0, Y1, Y2, Y3, where Y0 is the low bit and y3 is the high bit. When writing the corresponding data, Y3Y2Y1Y0 should be written.
Combined with the above, the first sentence is to make Y3Y2Y1Y0 represent hexadecimal 3, ie 0011, so Y1, Y0 work

5. The problem of pulse output often sees whether MR can output pulse to output pulse. It needs MT model. Of course, MR model can change Y0, Y1 and other relays into transistors if you are level enough.
Write this for the time being, and add it later.

The first is on the 13th floor (and come together)
Today, I will write 2 points.
6. Peripheral analog potentiometer problem
There is an analog potentiometer on the periphery of FX0N. The corresponding potentiometer address is D8013, and the value changes from 0 to 255 with the potentiometer adjustment.
There are two analog potentiometers on the periphery of the FX1N/FX1S. The corresponding potentiometer address is D8030/D8031, and the value varies from 0 to 255 with the potentiometer adjustment.
There is no analog potentiometer on the FX2N peripheral.
The peripheral potentiometer can be expanded by the expansion board.
Peripheral potentiometer applications, such as timers with adjustable timing, etc. If the timing time is 2-8S, then the following conversion is required.
LDM8000
The value of MULD8030K60D0D0 is 0-----255*60
The value of DIVD0 K255D1D1 is 0-----60
The value of ADDD1 K20D2D2 is 20----80, corresponding to the timing time of T 2---8S
Then you need to use the parameter after T is D2.

7. About the current time
No current time in FX0N
FX1N/1S, FX2N current time, second D8013, minute D8014, time D8015, day D8016, month D8017, year D8018, day of the week D8019
Current time application, time switch machine, if you need 8:00 boot, 17:00 shutdown
LD>=D8015K8
SET Y0
LD>= D8015 K17
RST Y0

Another netizen said that it needs to convert between binary and decimal. In fact, this can be classified into N-ary and decimal conversion. First look at the decimal conversion to N-ary, using the divisor method, that is, 10 Divide the number by N to get the quotient and remainder, and divide the quotient by N to get the quotient and remainder. . . . Repeat until the resulting quotient is 0, then the remainder of all remainders from the left is left, and the remainder of the remainder is the right, and the resulting set of numbers is the N-digit of the decimal number. For example, if the decimal number 12 is converted to a hexadecimal number, then 12/7=1 is 5, 1/7=0 is 1, so the hexadecimal number is 15. For example, the decimal number 9 is 2 into 2 The number of the system, then 9/2 = 4, 1, 4 / 2 = 2, 0, 2 / 2 = 1, 0, 1/2 = 0, 1, so the binary digit 1001.
Look at the N-ary number converted to a decimal number, first get the value of each bit * the weight of the bit to get the product, and then the sum of the product of each bit is the decimal number of the number. The weight of the N-bit M bit = the (M-1) side of N. For example, the hexadecimal 23 is converted to decimal = 2 × 7 ^(2-1) + 3 × 7 ^(1-1) = 2 × 7 + 3 × 1 = 17. Then, for example, the octal 37 is converted to 10进制=3×8 ^(2-1) +7×8 ^(1-1) =3×8+7×1=31

The third is on the 35th floor
8. About extension related, model description
FX 1 N-30 MR-001 FX is the serial number of Mitsubishi Micro PLC
1 is a series of sequences,
N is scalable, such as S is not expandable
30 means the total number of input and output points is 30 points.
M is the host, such as E is the extension
R is the relay output, T is the transistor output (when front is E, X is input, YR is relay output, YT is transistor output, YS thyristor output)
001 is an AC power supply. Although the D DC power supply is a non-expandable product, it is only necessary to expand the X below 4 points, the Y below 2 points, the AD below 2 points, and the DA below 1 point to select the function expansion board. Such as FX1N-4EX-BD, FX1N-2EYT-BD, FX1N-2AD-BD, FX1N-1DA-BD. For details, please refer to the FX1S instructions.
When the input point/output point is expanded, the number starts with the next 8 bits of the host, such as FX1N-30MR, extended FX1N-8EX, FX1N-8EYR, then the input of the host is X0--X7, X10--X17, and the output is Y0. ---Y7, Y10- Y15, the extended input is X20---X27, and the output is Y20---Y27

9. Problems in the use of programming software Mitsubishi programming software can directly input instructions in the form of statement tables during ladder diagram editing without using [ ] to select one by one.
Note that the input method is in English when editing, and pay attention to the difference between 0 and O.

10. The cottage brand Mitsubishi plc can be said to be one of the most influential brands in China, so many brands are actually based on the technology of Mitsubishi PLC, plus their own content.
Mainly, Delta, Xinjie, Fengqi, Shilin, in which Shihlin is completely an OEM of Mitsubishi, Shilin's PLC can be edited with Mitsubishi's programming software, using Mitsubishi's communication line for communication. Most of the other brands have the same functions and commands as Mitsubishi, and may have different addresses for special relays and special registers.
Recently busy, I will not write anything again. I see a lot of requests for writing communications, writing high-speed counters, etc. Because my level is not very high, and the post I sent is a literacy article. I hope that you can write more about the more advanced hopes, and I hope that you can work harder.