Memory allocation for online change in GX Developer

Select [Online] -> [Write to PLC] on the menu of GX Developer, open the [File selection] tab, and press "Param + Prog" button. Then open the [Program] ta... More Details >>

Battery replacement

Make sure to turn off the power of the programmable controller before replacing the battery. Replacing the battery while the power of the programmable con... More Details >>

Difference between L02CPU-P and L02CPU

In L02CPU-P, the general-purpose output of the built-in I/O is source type. In L02CPU, the general-purpose output of the built-in I/O is sink type. More Details >>

Security key authentication function of MELSEC iQ-R series

The security key authentication function registers a security key in a program file and prevents unauthorized execution or access to the program.You can set... More Details >>

CPU built-in I/O function

They can be used simultaneously when I/O signals are not overlapped. The overlap of signals are checked automatically when a user select functions in the bui... More Details >>

FNC connector pin layout in L series I/O module and Q series I/O module

Yes. They have the same pin layout. More Details >>

How to paste values in the device batch monitor window into an Excel sheet

Copy and paste operations cannot be carried out for values displayed in the device batch monitor window. To paste the values into an Excel sheet, read the d... More Details >>

Battery model

Q6BAT. More Details >>

How to check automatically assigned devices in GX Works2

Click the local label to be checked and select "Cross Reference" from the right-click menu to check the devices. More Details >>

Communication between CPU modules established by QJ71E71

The communication between QJ71E71 series modules can be established if READ/WRITE instructions are used. More Details >>