KEYENCE N-400 - Manual (Page 19)

Chapter 2 Installation Procedure
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2) Setting the N-400
Prepare the N-400, the RS-232C cable for the N-400, and a personal computer.
Set up the N-400 using the N-400 setup software.
For the setup software operating procedure, see pp. 32 and following.
The setting contents vary slightly depending on the mode being used.
• Multi-drop link mode: p. 60
• Multi-head scan mode: p. 88
• PLC link: p. 102
3) Setting a host computer/PLC
For the RS-232C communication, set the baud rate, data length, parity and stop
bit length according to the settings of the N-400.
To use a PLC link, set up the PLC according to pp. 104 and 105.
4) Connection between the BL series and N-400 (See pp. 19, 20 and 25.)
Connect the N-48 (or BL-U1) power supply unit to the BL series. Then connect
the specified cable (twisted pair cable) between the power supply and the N-
400. Turn ON the equipment terminator at both ends of the connection.
When using the BL-U1, set the DIP switch to “RS-485”. (See p. 22.)
5) Connection between the N-400 and host computer/PLC (See pp. 13 to 15.)
To connect the N-400 to the host computer or PLC, use the RS-232C cable
whose pin assignment conforms to that of the host computer and PLC.
6) Checking the RS-485 connection between the N-400 and the BL series
The N-400 provides a connection test mode that checks whether the RS-485
connection is correct or not. Using this function, check whether the RS-485
communication can be correctly performed.
For the procedure for using this function, see p. 26.
7) Connecting a sensor for trigger input
Connect a sensor for trigger input to each N-48 or BL-U1 unit. (This sensor is
not required when controlling the BL series’ reading operation using the read
start/end commands.)
To use the BL series in multi-head scan mode, connect a sensor for trigger input
to the N-400. (This sensor is not required when controlling the BL series’ read-
ing operation using the read start/end commands.)
If the sensor for trigger input is directly connected to each BL series, the BL
series cannot operate normally.
8) Checking operation
Using the terminal software included in the N-400 setup software, check
whether the RS-232C communication between the N-400 and host computer
can be performed correctly. (See p. 52.)
To use a PLC link, check whether data is stored in the PLC’s memory.