4-2 1:N Host Connection
4-16
Setting the Front Panel Switches
•
Using RS-232C
Set the unit number of the Serial Communications Unit with the rotary switches on the front of
the Unit. Use a flat-blade screwdriver to set the numerals and symbols in the switches setting
display window, as follows:
Unit number setting
Set a value between 0 and F that is not the same
as that of other Units in the system.
Connecting to CJ-series Serial Communications Units
CJ-series Units:
CJ1W-SCU41 (Port 1 is an RS-422A port and Port 2 is an RS-232C port.)
CJ1W-SCU31 (Both ports 1 and 2 are RS-422A ports.)
CPU Unit DM Area Settings
Write the settings directly from the Programming Device or Support Software (Programming
Console or CX-Programmer) to the DM Area (Parameter Area) in the CPU Unit. After writing
the settings, enable the settings by turning ON the power again, restarting the Unit, restarting
the communications port, or executing the CHANGE SERIAL PORT SETUP (STUP) instruc-
tion.
The following table shows the allocated DM Area words and settings.
The allocations and settings are the same for RS-232C and RS-422A.
m = 30000 + 100
×
unit number
Allocated DM Area words
Port 1
Port 2
Write
value Settings
DM m
DM m + 10
8200
1:N NT Link Mode
DM m + 1
DM m + 11
0000 to 0009 (See note 1.) Baud rate (normal)
DM m + 6
DM m + 16
000
@
@
: Largest unit number (1 to 7) of the
connected PTs. (See note 2.)
Note 1. Set the baud rate to a numeric value between 0000 to 0009 Hex. (The setting is the same for
any value between 0000 and 0009 Hex.)
2. When using a 1:N connection, set the value for
@
to 1 or higher.
Reference
When setting a 1:N NT Link in the CX-Programmer, set the baud rate to 38,400 bps.
Summary of Contents for NS - REV 12
Page 2: ......
Page 22: ...20 ...
Page 34: ...1 4 Procedure for Running NS series PTs 1 12 ...
Page 54: ...2 2 Part Names and Functions 2 20 ...
Page 116: ...3 11 RS 232C RS 422A Selector DIP Switch 3 62 ...
Page 144: ...4 4 Recommended Connector Cables 4 28 ...
Page 174: ...5 3 Connecting to Host via EtherNet IP 5 30 ...
Page 246: ...6 11 Verifying Tags 6 72 ...
Page 279: ...Appendix 2 Dimensions A 19 NS5 V1 V2 Cable Connection Dimensions ...
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