Settings of External Device (Port on the CPU unit / EH-OB485)

Use the ladder software (LADDER EDITOR for Windows) for communication settings. Please refer to the manual of the External Device for more details.

Procedure

1. Set the following communication settings in I/O No.WRF03D and turn I/O No.R7F6 ON to write the settings in the FLASH memory in the External Device.

• WRF03D

  Limit Bit	Settings	Description
  15	1*1	Setting Change Request
  14	0	Procedure 1
  13	1	Station No.: Enable
  11 to 8	0010(H)	Transmission speed: 19,200bps Please refer to the manual of the External Device for more details about other transmission speed settings.
  7 to 0	0	Station No.*2

  ^*1For communication settings, set "1". It will be changed to "0" when turning the power of the External Device again.

  ^*2Set the Station No. with BCD 2 digits. Bit position of 7 to 4 corresponds to the digit of 10, and of 3 to 0 corresponds to the digit of 1.
  

• R7F6

  Limit Bit	Settings	Description
  -	1	Writing in FLASH memory

2.  Turn ON the power of the External Device again.