### Setting of External Device

Define the communication settings for the External Device using the engineering software MELSOFT GX Works3.

For more information, please refer to the manual of the External Device.

1. Start up the engineering software.

2. From the tree view, expand the [Parameter], select the External Device in use and then from [Module Parameter] double click [Expansion Board].

3. In the [Expansion Board] window, specify the following parameters.

- Basic Settings

  Setup Items | Settings
  Expansion Board | Select expansion board you want to use (FX5-232-BD or FX5-485-BD)
  Communication Protocol Type | Modbus RTU Communication
  Parity | Even
  Stop Bit | 1 bit
  Baud Rate | 19,200 bps

- Fixed Settings

  Setup Items | Settings
  Station No. | 1
  Slave Response Timeout | 3000
  Broadcast Delay | 400 ms
  Message Waiting Time | 1 ms

NOTE

- Use an integer from 1 to 247 to enter the unit ID of the External Device.