KEYENCE N-400 - Manual (Page 51)

Chapter 3 N-400 Setup Procedure
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3
RS-485
The RS-485 screen is used to set the RS-485 communication parameters for the
N-400. Set these parameters so that they conform to those of the connected BL
series.
Note: We recommend that you set the baud rate to “38400 bits/s” to increase the
processing speed, since the RS-485 communication between the N-400 and the
BL series transfers a large volume of data.