### External Device Settings

Use ladder software KV STUDIO Ver. 8 or later to define the External Device communication settings. Refer to your External Device manual for details.

1. Start up the ladder software.

2. From the [File] menu, select [New project] to display the [New project] dialog box.

3. In the [Project name] field enter the project name, in the [PLC model] property select the External Device, and click [OK].

4. In the [Confirm unit setting information] dialog box click [Yes], and the [Unit Editor] window will display.

5. On the [Select unit (1)] tab, from the [Extension Adapter Selection] area select "KV-NC20L".

6. Configure the [Extension Adapter (Port2)] as follows.

   Setup Items | Setup Description
   --- | ---
   Port 2 | Operation Mode | KV BUILDER/KV STUDIO mode
   Interface | RS-422A/485 (4wire)
   Baud Rate | Auto (Fixed)
   Data Bit Length | 8 bits (Fixed)
   Start Bit | 1 bits (Fixed)
   Stop Bit | 1 bits (Fixed)
   Parity | Even (Fixed)
   Check Sum | none (Fixed)
   RS/CS Flow Control | Disabled
   Base | Node No. | 0
   Detail Settings | Transfer timeout time (secs) | 3 (Fixed)

7. From the [Convert] menu, select [Auto-assign relay/DM].

8. From the [File] menu, select [Close] and display the [Unit Editor] dialog box.

9. Click [Yes].

10. From the [Monitor/Simulator] menu, select [Transfer to PLC] to display the [Transfer Program] dialog box.

11. Select the [Unit setting info] and [Program] check boxes, and then click [Execute]. The settings are transferred.

This completes the setting of the External Device.