Models of batteries that can be used with MELSEC iQ-R series CPU modules

You can use "Q6BAT" and "Q7BAT". You cannot use "Q8BAT". More Details >>

I cannot place a main base unit in a module configuration diagram with GX Works3.

You may have already placed a main base unit in the module configuration diagram. Scroll up or down in the module configuration diagram and check if a main ... More Details >>

Interrupt period setting of fixed scan interrupts of MELSEC iQ-R series

You can configure the setting in "Interrupt Setting from Internal Timer" of the CPU parameter. <Interrupt period setting> [Navigation Window]-> ... More Details >>

Setting the MELSEC iQ-R series inter-module synchronization function

Set modules in a module configuration diagram with GX Works3 and configure the inter-module synchronization setting. [Navigation Window]-> [Parameter]-... More Details >>

Copying device comments in GX Developer

Open the copy destination project in GX Developer.From the menu, select [Project] -> [Copy], specify the copy source project, and check the device comment... More Details >>

Duplicated coil error

The duplicated coil error is detected when SET instruction and RST instruction use the same device. More Details >>

MX Component's license

One license is required for each personal computer as a rule. More Details >>

Replacing a device in GX Developer

Select [Tool] -> [Options] from the menu of GX Developer and open <<Program common>> tab.Then select "Don't write to PLC" in "After conversion... 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 >>

When a message indicating that "the memory space is insufficient" appears during online change

This problem occurs because the consecutive free memory space for temporarily storing the program during online change is insufficient. In this case, perform... More Details >>