Difference between QH42P and QX41Y41P

The difference is I/O numbers used for input and output (XY). QH42P uses the same I/O numbers both for input and output. QX41Y41P uses sequential I/O numbers... More Details >>

Battery replacement for universal model QCPU

The contents of the standard RAM and latch devices are not erased if the battery replacement is completed within three minutes, which is the backup power tim... More Details >>

USB communication driver

Is the version of MX Component compatible with Windows 7? Update the software to the version compatible with Windows 7 and then update the driver. For the ... More Details >>

How to write to file registers in Q series

Specify the file in the Write to PLC window and execute writing. More Details >>

PLC write not possible due to memory overload

If comments cannot be stored in the program memory, write them in the standard ROM or a memory card. Calculate the memory capacity in GX Works2 or GX Develo... More Details >>

Transparent function

Set as follows in the Transfer Setup window. - Select "USB" for "PC side I/F". - Select "GOT" for "PLC side I/F" and select "via GOT (direct coupled) tra... More Details >>

Creating comments both in English and in Japanese

Create global device comments and local device comments in respective languages.The device comments can be switched in [Options] -> [Tool]. More Details >>

Copying programs when replacing the CPU module

Programs and parameters can be copied using the memory copy function.There are the following two methods of executing the memory copy function.- Using the me... More Details >>

Ladder programs for GX Configurator-FL

When GX Configurator-FL is used, programs for initial settings and cyclic data reading and writing are not needed. More Details >>

Remedy for the division-related operation error

The operation error occurs when the divisor is 0.Create a program in which a comparison operation instruction or another method executes a division instructi... More Details >>