RS485 COM MR MOS HMI Control Panel Portrait Display Resistive PLC Screen

Example of analog input:

Below is an example of QM3G's one-channel temperature analog quantity AD0 acquisition, the program reads the value as follows:

Connect the signal end of the temperature sensor to the AD0 input port of the PLC, and connect the other end to the GND of the analog input port. When the PLC is running, the value of the data register D8030 corresponding to AD0 will be transferred to D0, the value of D0 will be put into D10 after floating-point operations, and then floating-point division operations will be performed on D10, the result of the operation will be put into D20, and the result D20 is The actual temperature value. In the ladder diagram, you can also directly divide the value of D8030.

Note: When the input is 0-10V analog, the actual analog value = register reading/400;

When the input is temperature, the actual temperature value = register reading/10;

When the input is 0-20mA analog quantity, the actual analog value = register reading/200;

When the input is 4-20mA analog quantity, the actual analog value = register reading/250+4.