### Settings of External Device

To configure communication settings, use the ladder software (GX-Developer Ver.8.88S). After completing the settings, reboot the External Device to enable them. Please refer to the manual of the External Device for details.

1. Start up the ladder software.

2. Double-click [PC Parameter] under [Parameter].

3. Configure the following settings in the [Built-in Ethernet port] tab of the window that appears.

   Setup Items | Settings
   --- | ---
   IP Address | 192.168.0.1
   Subnet Mask pattern | Option
   Default Router IP Address | Option
   Communication Data Code Settings | Binary code communication
   Enable Write during RUN | Enable*1

   *1It enables writing to the External Device even when the CPU is in RUN status.

4. Click [Open settings].

5. Configure the following settings in the window that appears.

   Setup Items | Settings
   --- | ---
   Protocol | TCP
   Open Method | MC Protocol
   Source Port No. | 401H*1

   *1Use an integer from "0401H to 1387H" and "1392H to FFFEH" to enter the source port No.
   Check with a network administrator about setting value.

6. Click [End].