plc program
Programming method using STL instructions First, the STL / RET instruction The STL instruction allows the programmer to generate procedures and procedures that work very close to the sequential function diagram. The meaning of the STL instruction is to activate a step (ie state), which is represented on the ladder diagram as a state contact … Continue reading Mitsubishi PLC “STL” instruction
The Mitsubishi PLC instruction DRVA refers to absolute positioning. “----||-----[DRVA K3000 K500 Y001 Y003]” I/O points can be accessed directly if immediate I/O instructions are used during program execution. Even if an I/O command is used, the value of the input process image register will not be updated. The program takes values directly from the … Continue reading Mitsubishi PLC instruction “DRVA”
1, Mitsubishi PLC instruction DFLT D114 D340 means: the value of register D114 is converted to a floating point number and stored in the D340 register. 2. When a floating point instruction is used without a floating point flag (M8023=OFF), the source data will be converted to the corresponding value in floating point format and … Continue reading Mitsubishi PLC instruction “DFLT D114 D340”
BIN and BCD are data conversion instructions. These two instructions are the conversion between binary and bcd codes. Binary to BCD needs to be converted to decimal. The BIN code is a binary code. For example, the decimal number 9 is represented by an 8-bit BIN code, which is 00001001; BCD code is a four-digit … Continue reading Mitsubishi PLC “BIN” “BCD” instruction
Use: Add 1 command INC is to increase the content of operand [D], and the result is still stored in [D]. Application examples: [INCP D1] means that when the instruction execution condition is satisfied, the operation is incremented by one. The value of the register D1 is incremented by one, and the operation result is … Continue reading Mitsubishi PLC INCP Directive
DIV integer division instruction, three parameters, divisor, dividend, result, result is stored according to quotient and remainder, so it occupies 2 registers, for example, DIV D0 D1 D2 means D0 divided by D1, quotient Save to D2, the remainder is saved to D3. If D0=10, D1=3, then D2=3 (quotient), D3=1 (residual). DIV,D1059,K2.D058 DIV-division operation instruction … Continue reading Mitsubishi plc “div” instruction
The DTBL instruction is a positioning instruction for the table setting mode. For the GX Developer software, set the action command on the positioning table in advance, and then follow the one specified in the table.
RST is an abbreviation of Reset. This is a reset instruction that resets the state of the bit device to the off state, resets the state of the timer and the data register to 0. Example: LDP X0 RST Y0
LD open point \LDI closed point \OUT coil contact and coil output command, L represents latch relay. The latch relay has a power-down hold function. If the latched relay coil is energized during the operation of the plc, the latch relay can remain in the state before the power-off when the power supply is suddenly … Continue reading Mitsubishi PLC “L” command
The operation of RS232 communication with Weilun touch screen fx3u is as follows: 1. The first step is to use the easybuilder pro software and click on "File". At this point, you should select Help Topics in the File drop-down menu. 2, then select "All Topics", then on the right side of the "All Topics" … Continue reading How to use RS232 communication for Weilun touch screen fx3u
PLC ONE 