KEYENCE N-400 - Manual (Page 68)

Chapter 4 Multi-Drop Link Mode Control Procedure
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4.1.2 Setup procedure
For setup and connection procedures, see p. 10. This section describes the proce-
dures for setting the N-400, BL series and host computer only.
Setting the BL series
Using the BL setup software or serial communication, set the BL as follows:
1. Set “Multi-drop Link” to “Enable”.
2. Assign ID numbers (1 to 31) to the connected BL series. Be sure not to assign
the same ID number to different units.
3. Set the RS-485 communication parameters (baud rate, data length, parity and
stop bit length) for the BL series according to the N-400’s settings. The default
settings for the BL series and the N-400 are as follows:
Baud rate: 9600 bps
Data length: 7 bits
Parity: Even
Stop bit length: 1 bit
Note: To increase the response speed, set the BL series’ baud rate to 38400 bps.
4. Setting “Handshaking protocol” or “RTC/CTS” is not effective.
5. Set “Header” to “None”. Setting “Delimiter” is not effective.
* Set other parameters as required.
Setting the N-400
Using the N-400 setup software, set the N-400 as follows:
1. Set the host mode to multi-drop link mode. ( ➮ See p. 38.)
2. Set the handshaking protocol on the “PROTOCOL” screen. ( ➮ See p. 40.)
3. Enter the ID numbers of the connected BL series on the “ID SETUP” screen.
( ➮ See p. 41.)
To perform manual polling, do not register ID numbers.
4. Set the baud rate, data length, parity and stop bit length according to the host
computer’s settings on the “RS-232C” screen. ( ➮ See p. 42.)
5. Set the baud rate, data length, parity and stop bit length according to the BL
series’ settings on the “RS-485” screen. ( ➮ See p. 43.)
Note: To increase the response speed, set the RS-485 communication baud rate
to 38400 bps. (Set the BL series’ baud rate to this value as well.)
Setting the host computer
Set the RS-232C communication parameters (baud rate, data length, parity and
stop bit length) for the host computer according to the N-400’s settings.