Creating function blocks

The number of FB definitions created in a project has no limitation. 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 >>

A message that says "A T/C coil with the same No. exists."

It is a confirmation message telling a user that there is a device, T or C, that has become a duplicated coil in the same program and the coil is given the s... More Details >>

Accessing a QnA compatible Ethernet interface module via a router using GX Developer

For GX Developer, a connection via a QnA compatible Ethernet interface module allows communication only within the same segment. Via a router, it is impossib... More Details >>

Removal of SD memory card during logging in L series

An error will occur in CPU. More Details >>

Alive check for built-in Ethernet port LCPU

When the protocol is set to TCP, KeepAlive check is performed. (Checking for a response to KeepAlive ACK message) An alive check message is sent five seconds... More Details >>

Cable length to connect to built-in Ethernet port in LCPU

The maximum length between a hub and a node is 100 m. The max. length connectable to a hub is 200m.When repeater hubs are used in cascade connection, the max... More Details >>

Battery-less operation

Uncheck "Check battery", an item of "Error Check", in the [PLC RAS setting] ([PLC Parameter] -> [PLC RAS setting]). More Details >>

The numbers of POUs and steps of "Allocate Memory for 'Online Change'" in GX Works2

The maximum number of steps that an online change can process at a time is 512. More Details >>

Fixed buffer data area

The fixed buffer data areas in the buffer memory are used for communication for FROM/TO instructions. The areas used in communication for FROM/TO instruction... More Details >>