LCPU built-in I/O function

The built-in I/O functions are standard functions of the L series CPU. Combining these functions flexibly achieves various controls with lower cost, eliminat... More Details >>

Number of connectable modules

Up to 10 modules are connectable. Note that RS-232 adapter and END cover are excluded. Use the built-in CC-Link function for I/O enhancement. More Details >>

Application of RS-232 adapter L6ADP-R2

This adapter is used to add a serial port to the L series CPU. It is not a serial communication module. It is used for serial communication between a device ... More Details >>

Operation during power failure

It stops during execution. More Details >>

Use of an A-compatible 1E frame for the built-in Ethernet port of LCPU

The built-in Ethernet port in the L series is compatible only with a QnA-compatible 3E frame of the MC protocol. An A-compatible 1E frame is not supported. 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 >>

How to read comments in the standard ROM with GX Works2

Select [Target Memory] -> [Standard ROM] in the Read from PLC window. More Details >>

Turning OFF the power with the battery error occurring

It deletes the error history. More Details >>

Device comment

Those displayed under COMMENT are common comments, and others are program comments.When there are multiple programs in a project, a common comment applies to... More Details >>

Combination of the MELSEC iQ-R series inter-module synchronization function and the fixed scan communication of the multiple CPU system function

You can synchronize the fixed scan communication cycle of the multiple CPU system function with the inter-module synchronization cycle of the inter-module s... More Details >>