### Settings of External Device (EH-SIO)

Use the switch on the EH-SIO for communication settings. After setting, assign I/O, and turn ON the power of the External Device again to enable the setting. Use the ladder software (Control Editor) for the I/O assignment.

Please refer to the manual of the External Device for more details.

##### Procedure

1. Use the DIP switch on the EH-SIO for communication settings.

- Communication Setting Switch 2 (for Port 2)

  DIP Switch | Settings | Description
  01 | OFF | Speed: 19,200 bps Please refer to the manual of the External Device for more details about other transmission speed settings.
  02 | ON
  03 | ON
  04 | ON
  05 | OFF | Transmission character configuration settings Data Length: 7 bits Stop Bit: 1 bit Parity: Even
  06 | ON
  07 | OFF
  08 | ON | Interface Type: RS422/RS485

2. Ladder program is required for initial settings. Please refer to the manual of the External Device for more details.

NOTE

- Version 2.0 or later of the EH-SIO software supports Procedure 1; version 2.1 or later supports Procedure 2.