Nortech Systems RS-422/485 User Manual
SmartController Serial I/O Connectors
Adept SmartController User’s Guide, Rev. E
45
NOTE: To configure the port speed and other communications
parameters, use the CONFIG_C utility program, the V
parameters, use the CONFIG_C utility program, the V
+
FSET program
instruction, or the FSET monitor command.
RS-422/485 Connector
The RS-422/485 connector is a 9-pin DB9 male connector. The pin assignments are shown
in
in
. RS-422 is a point-to-point protocol for connecting to a single destination. This
port can also be configured as a multidrop port (RS-485).
To change the configuration of the RS-422/485 port, use the CONFIG_C utility program or
the V
the V
+
FSET program instruction. See
for the V
+
designation when referenced in
a V
+
ATTACH or FSET instruction.
Table 3-5. Serial Connectors and V
+
Designations
Controller
Connector
V
+
Designation
CS and CX
RS-422/485
LOCAL.SERIAL:1
CS and CX
RS-232/Term
LOCAL.SERIAL:2
CX only
RS-232-1
SERIAL:1
CX only
RS-232-2
SERIAL:2
Table 3-6. RS-422/485 Connector Pin Assignments
Pin
Signal
Type
1
NC
2
RXD+
Input
3
TXD+
Output
4
TXD-
Output
5
GND
Ground
6
RXD–
Input
7
NC
8
NC
9
NC