Omron NT21 - SETUP MANUAL 10-2001 Setup Manual page 37

Connecting Link Adapters
DIP Switch Settings
Item
Vibration resistance
Shock resistance
Communications Specifications (RS-422A/485 Interface)
Item
Baud rate
Transmission distance
Connector
Communications Specifications (RS-422A/485 Interface)
Item
Baud rate
Transmission distance
Terminal block configuration
The NT-AL001 Link Adapter has a 6-pin DIP switch that sets the RS-422A/
RS-485 communication conditions. Set the DIP switch before connecting the
communications cable.
(Factory settings)
ON
123456
Specification
Conforms to JIS C0911, 60 minutes each in X, Y,
and Z directions
Conforms to JIS C0912, 147 m/s
X, Y, and Z directions
Specification
115.2k bps max.
2 m max.
9-pin D-SUB connector (female)
Specification
115.2k bps max. (depends on the RS-232C baud
rate)
500 m max.
8-terminal detachable terminal block, M3.0
om on
R NT–AL001-E
SW1-1: Not used (always ON)
SW1-2: Built-in terminator setting
- OFF Terminator not set
- ON Terminator set
SW1-3 and SW1-4: 2-wire/4-wire
SW1-3 SW1-4
OFF
2-wire (RS-485)
ON
SW1-3 SW1-4
OFF
4-wire (RS-422A)
ON
SW1-5 and SW1-6: RS-422A send mode
SW1-5 SW1-6
OFF
No RS/CS control
ON
SW1-5 SW1-6
OFF
RS-232C CS control (high)
ON (Data sent at CS high)
SW1-5 SW1-6
OFF
RS-232C CS control (low)
ON
(Data sent at CS low)
Section 3-2
2
, 3 times each in
25