Omron NB3Q-TW00B Setup Manual page 56

When connecting to a CJ1-Series Serial Communication Unit
For CJ1W-SCU21 type (Both of port 1 and 2 are RS-232C ports)
For CJ1W-SCU31 type (Both of port 1 and 2 are RS-422A/485 ports) (Unit version1.3)
For CJ1W-SCU41 type (Port 1 is RS-422A/485 port and Port 2 is RS-232C port.)
Settings for the DM Fixed Allocation Area of the CPU Unit
Write settings directly to the [DM Fixed Allocation Area] of the CPU Unit (System Settings Area) with a
peripheral tool (programming console or CX-Programmer). After finishing the write-in, the settings can
be activated through any of the methods of reconnecting the power supply, restarting the Unit,
reactivating the communication port, executing the STUP instruction.
The followings are the Channel Nos. and settings of the DM Fixed Allocation Area.
It is the same when using RS-232C, RS-422A.
m = DM30000 + 100 × Unit No. (CH)
DM Fixed Allocation Area (CH)
Port 1
m
m+1
m+3
*1 The communication speed should be set to the same value as that of the NB Unit.
Settings for the front-side Switches (Take CJ1W-SCU41 as an example)
CJ1W-SCU41
NB-series Programmable Terminals Setup Manual(V107)
2 Installing the NB Unit and Connecting Peripheral Devices
Write Value
Port 2
m+10 8000
m+11 0000~000A (*1)
m+13 0000
Display indicators
Terminating resistance switch (TERM)
Unit number setting switch
Set a value between 0 and F that is not the same as
these used by other Units in the system.
Two-wire/four-wire switch (WIRE)
RS-422A: [4](four-wire)(right position)
RS-485: [2](two-wire)(left position)
Port 1
RS-422A/485
Port 2
RS-232C
WWW.NNC.IR
Setting
Use Host Link
Communication speed
Unit No. 00
2
2-25