Omron NT11 - 01-2004 User Manual page 62

Connection to a PLC by the Host Link (RS-422A Type)
Setting the Switches on an RS-422A Adapter
Set the terminator selector switch to ON (upper position).
Connecting to a CS-series Serial Communications Board
Serial Communications Board with RS-422A/485 port equipped for CS-series
CPU Unit Model:
CS1W-SCB41 (The port 2 is RS-422A/485 port.)
Setting the Front Switches
RDY
COMM1
COMM2
Port 1
RS-232C
PORT1
OFF ON TERM
2
4 WIRE
Port 2
PORT2
RS-422A/485
(RS422/
RS485)
SCB41
Allocated DM Area Settings for CPU Unit
Settings are written from the Programming Device (a Programming Console
or CX-Programmer) directly into the allocated DM Area settings (PLC Setup)
of the CPU Unit. After the settings are written, they become effective by turn-
ing the power ON, restarting the Unit, restarting the communication port, or
executing the STUP instruction.
The following table shows the words allocated in the DM Area and the set-
tings.
Allocated DM Value
word
Port 2
DM32010 8000
DM32011 0000
0007
0008
0009
000A
DM32012 0000
DM32013 0000
Terminal resistance setting switch (TERM)
Set to ON (Terminal resistance is present.) (right side)
Two-wire/four-wire changeover switch (WIRE)
4 (4-wire) (right side)
Settings
Host Link mode, 2 stop bits, data length 7 bits,
even parity,
Baud rate 9,600 bps.
Baud rate 19,200 bps.
Baud rate: 38,400 bps.
Baud rate: 57,600 bps.
Baud rate: 115,200 bps.
Transmit delay time 0 ms.
No CTS control Unit No. 0 for Host Link
Section 2-5
CPM1-
CIF11
CPM1
49