WHAT IS THE UNDERSTANDING OF THE MITSUBISHI PLC INSTRUCTION TO H2 H188 K4M2000 K1

TO is to write the command of the special function module, that is, to send the data in the PLC to the special function module and buffer memory BFM.

The opposite of the FROM command, FROM is to send the data from the BFM to the PLC.

to h2 h188 k4m2000 k1

where H2 is the position number of the special module (the number of the special module starts from 0, generally in the right of the PLC basic unit, from right to left is 0, 1, 2, etc., and is not a special module to be skipped).

H188 is the first address of the BFM to be written to the buffer memory of the special module, K4M2000 is the first address of the data word element to be written to the BFM, and K1 is the number of data to be transmitted.

The function of the previous command is to send the data of K4M2000 (i.e. M2000 to M2015) to the BFM, H188 unit of the special module numbered H2 (i.e. No. 2).

This is an instruction to operate a special module register, which means, to h2 h188 k4m2000 k1

to: indicates a write operation.

h2 : Module number, number starts from 0, h2 indicates the third special module extension from left to right.

h188: H0188 address register.

k4m2000: The character bit, that is, the data to be written, the data is: m2015 m2000 16bit combined into 1 word

k1: indicates that a sum of data is written, that is, only h188 is used.

Take a look at what the third special module is from left to right in the PLC module configuration, and find the address definition description of H0188 in the manual of the module.

Compare the instructions, any bit of other m1 m15 is 1 or all are 1, and the condition is true (>k4m0 k1) is turned on.

Read 3 The data of CR10 in module 3 is stored in K4M0.

from (from read, to is write).

K2 (3 modules, K0 is 1, K1 is 2, K2 is 3).

h0a (the previous h refers to the hexadecimal system, and 0a is the hexadecimal number, that is, the decimal 10).

K4M0 (using PLC auxiliary relay as memory, source K1M0 refers to M0 M4, K2M0 refers to M0 M8, K4M0 refers to M0 M16, this parameter represents 16-bit binary memory composed of auxiliary relays).

k1 (read one stroke, if it is k2, read two strokes, i.e. cr10 cr11, and so on).

To k4 k0 h1111 k1 is the 0th buffer memory of the module that writes the hexadecimal h1111 value to position 4 as a setting parameter.

k4: module position 4 (value 0---7, that is, the fifth special module on the right side of the host) k0: bfm 0 (buffer memory 0).

H1111: Channel CH1, CH2, CH3, CH4 set to mode 1K1: Write 1 bfm data.

Please refer to the information for the specific function of BFM buffer memory.

To k4 k2 d250 k1 is to write the value of d250 to the No. 2 buffer memory of the module at position 4 for setting.

K4: Module position 4 (value 0---7, that is, the fifth special module on the right of the host) K2: BFM 2 (buffer memory No. 2).

d250: Data Memory.

K1: Write 1 bfm data.

To K4 K0 H1111 K1 is to write H1111 content to BR0 of the 5th expansion module.

To K4 K2 D250 K1 is to write the contents of the D250 to BR2 of the 5th expansion module.

In the command, it means that the data K4 is transferred to the 0 BFM (buffer memory) in the 0 special module of the PLC in a 1-point manner.

d=, Mitsubishi PLC contact comparison is equal to the instruction in the output instruction.

k0, the decimal constant 0.

K3x80, which means 3 bit component groups, each bit component group includes 4 consecutive bit components, X80 should only appear in A series or Q series PLCs. K3x80 represents 12 contiguous bit elements with a starting position of x80. Includes x80, x81 ......x8a,x8b,x8c。

d= k0 k3x80] indicates that when the working state of k3x80 is 0 (open), the contact indicated by the command is turned on.

This is a comparison command, which is used to detect the input status of the external IO port, which means that when there is no input for a total of 12 input ports from x80 to x93, that is, when all bits are equal to zero, the condition here is turned on.

Actually, this command can be changed to [= k0 k3x80], it does not need to be preceded by d, if it is k4x80, it needs to be preceded by d, such as.

d= k0 k4x80]

MOVP is the upper BAI of the MOV directive

In the form of ascending edge pulse, when the control end of the command changes from off to on, the execution of the dao line is assigned to MOV in turn.

version of the directive. K is the symbol of the decimal weight constant, and K300 is the number of the module in the decimal constant, and G is the number of the register BFM in the module, so U0 G2 is the BFM 2 register of the first special module. So the meaning of this command is to assign the constant 300 to bfm 2 of the first special module when t31 changes from off to on.

In the same way, the second instruction is to assign a constant 0 to the bfm of the first special module when t31 changes from off to on

The add in the third line is the addition instruction. The data in the first special module of BFM 10 plus the constant 250 and the result is saved to D10.

The fourth line is to assign the bfm 29 of the first special module to k4m0 (i.e., the register consisting of k4*4 bits starting from m0).