Datasheet

Machine Automation Controller NX1P
29
RS-422A/485 Option Board (NX1W-CIF11/NX1W-CIF12)
RS-422A/485 terminal
block
Operation setting DIP
switch (SW1)
Operation setting DIP
switch (SW1)
Operation setting DIP
switch (SW2)
Communications
status indicator
CPU Unit connector
Front Back (CIF11) Back (CIF12)
SW 1
1 2 3 4 5 6
O N
1 2 3 4
O N
1 2
O N
SW 1 SW 2
COMM
RDA- RDB+ SDA- SDB+ SHLD
RS-422A/485 Terminal Block
RDA- RDB+ SDA- SDB+ SHLD
* For two-wire connection, either the RDA-/RDB+ pair or SDA-/SDB+ pair can be used.
Abbreviation
Four-wire type selected Two-wire type selected
Signal name I/O Signal name I/O
RDA- Reception data -
Input
Communication data -
I/O *
RDB+ Reception data + Communication data +
SDA- Transmission data -
Output
Communication data -
I/O *
SDB+ Transmission data + Communication data +
SHLD Shield
Note: All pins are turned OFF by default.
Use a narrow-tipped tool such as a flat-blade screwdriver to change the settings of the DIP switches.