An unavailable device memory address is set or the available device memory range is exceeded.

Causes

The causes are listed below.

1. Device memory set in the screen program does not exist on the counterpart unit.
2. In the case of an Ethernet connection, an unregistered PLC table number is set in the PLC properties located at [Hardware Setting] → [PLC Setting] → [Properties] → [Target Settings].
3. The PLC device memory is blank.

Solutions

Case A

Check the device memory setting.

1. Click [Tool] → [Search] → [Device].
   
2. Deselect the [Device Designation] checkbox and click [OK].
   
3. Check that there is no invalid device memory in the displayed list.
   

Case B

Set the PLC table number again.

1. Click on the target PLC located at [System Setting] → [Hardware Setting] to display the PLC properties.
   
   
   
2. Register the IP address and port number of the network device for connection to a number in the PLC table.
   
   

 For 1:1
Select the registered PLC table number for [Connect To].

For 1:n
Set the registered PLC table number as the port number for the device memory of each item.

Case C

Set the PLC device memory again.

1. Execute [Tool] → [Error Check] and find the error location.
   
2. Double-click on the error location to jump to the setting on the relevant screen.
3. Reconfigure the device memory.