A-3-4 Dip Switch Settings - Omron NS Series Setup Manual

A-3-4 DIP Switch Settings
The NS-AL002 Adapter has four DIP switch pins for setting the RS-422A communications
conditions.
Set the DIP switch pins before connecting the cables to the Adapter.
DIP switch
The factory setting for the DIP switch is all pins set to OFF.
Pin
Pin 1
Pins 2 and 3 Two-wire/four-wire method selection
Pin 4
For 1:1 NT Link, set the RS-422A transmission mode to normal transmission (pin 1 OFF).
For 1:N NT Links (normal, high speed), set the RS-422A transmission mode to RS/CS
control (pin 1 ON).
Note
Pin
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
OFF
ON
Function
Transmission mode
Terminating resistance
• Use the following DIP switch settings when connecting a CJ1W-CIF11 Conversion
Adapter to the PT.
Function
Terminating resistance selection
Two-wire/four-wire method selection
Two-wire/four-wire method selection
Not used.
Selection of RS control for RD
Selection of RS control for SD
• When a CJ1W-CIF11 Conversion Adapter is used, the total transmission length is 50 m.
• If NT-001/NT-002 Link Adapters are used together with CJ1W-CIF11 Conversion Adapt-
ers on the same transmission path, the total transmission length is also 50 m.
• For details, refer to the Appendix G in the SYSMAC CJ Series Operation Manual
(W393).
• Make sure that both of the mounting screws on the D-Sub connector are tightened to a
torque of 0.3 N⋅m.
Appendix 3 Using NS-AL002 Converters
ON
RS/CS control Normal transmission
Two-wire method Four-wire method
Yes None
Setting
ON: Terminating resistance enabled
OFF: Terminating resistance disabled
OFF (four-wire)
OFF (four-wire)
OFF
OFF (no RS control)
ON (RS control)
OFF
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