NT31C-ST143B-EV3 Omron, NT31C-ST143B-EV3 Datasheet - Page 129

• Manufacturer Part Number: NT31C-ST143B-EV3
• Description: 5.7,8-color,dis,stn,black,eng
• Manufacturer: Omron

Specifications of NT31C-ST143B-EV3

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Connecting to the Host’s RS-422A/485 Port
112
Allocation DM Area Settings for CPU Unit
Settings are written from the Programming Device (a Programming Console
or CX-Programmer) directly into the allocation DM area (system setting area)
of the CPU Unit. After settings are written, they become effective by turning
the power ON, restarting the Unit, restarting the communications port, or exe-
cuting the STUP command.
In the following, the channel numbers of the allocation DM area and settings
are shown.
*1
For example, when connecting PTs with model numbers 3, 4, 5, and 6 to port
2 in the NT link (1:N), set a value of 8200 Hex for D32010, 0000 Hex for
DM32011, and 0006 Hex for D32016.
Connecting to a CS/CJ-series Serial Communications Unit
CS/CJ-series Rack-mounting Units:
Setting the Front Switches
Set the unit number of the Serial Communications Unit using the rotary
switches on the front of the Unit. Set the number or symbol in the setting dis-
play window in the following way using a flat-blade screwdriver. When using a
CS/CJ-series Serial Communications Unit set the switches as shown below.
Port 2
RS-422A/485
DM32010
DM32011
DM32016
Port 1
RS-232C
Allocated DM
Set any value between 0000 and 0009 hex for the baud rate. The same
baud rate will be used regardless of the value as long as it is between 0000
and 0009 hex.
Area words
CS1W-SCU31-V1 (Port 1 and port 2 are both RS-422A/485 ports.)
CJ1W-SCU31-V1 (Port 1 and port 2 are both RS-422A/485 ports.)
CJ1W-SCU41(-V1) (The port 1 is an RS-422A/485 port.)
2-wire or 4-wire selector (WIRE):
Port 2
OFF
SCB41
2
8200
0000 to 0009
000@
RDY
COMM1
COMM2
ON TERM
4
WIRE
Setting
(RS422/
PORT1
PORT2
RS485)
(*1)
Terminal resistance setting switch (TER)
Two wire type/four wire type changeover switch (WIRE)
Set to ON (Terminal resistance is present.) (right side)
For RS-422A: 4 (4 wire type) (right side)
For RS-485: 2 (2 wire type) (left side)
1:N NT Link Mode
Baud rate (standard)
@ = The highest unit number of the connected
PTs (0 to 7)
4
2
(4-wire = RS-422A), or
(2-wire = RS-485)
Setting Contents
Section 5-2