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Description of Parts and Settings
Section 2-1
2-1-3 Setting the Communication Condition Setting Switches
(NT20S-ST122-V1 Only)
When using the NT20S-ST122-V1, the communication conditions are set with the
rotary switch (SW4) under the cover at the top right of the back of the terminal.
Rotary switch (SW3)
Connector for peripheral device
Setting the rotary switch The rotary switch is used to set the unit number.
Since the NT20S-ST122-V1 serves as a C200H special I/O unit, it requires a unit
number setting. Make sure the set unit number does not duplicate the unit number
set for any other special I/O unit.
0
1
2
3
4
5
6
7
8
9
(Factory setting)
SW3
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