Omron NT31 Operation Manuals page 137

Connecting to the Host's RS-422A/485 Port
126
[Setting the DIP switches on the front of a C200HX/HG/HE(-ZE)]
When using a C200HX/HG/HE(-ZE) , the DIP switches on the front panel must
be set as shown below in order to make the settings in the PC system setting
area (data memory) effective.
RS-232C port communication condition setting
1
Set DIP SW5 to "OFF" to make the settings made in PC system setting
2
3 effective.
4
5
6
ON
OFF ON
[Setting switches on a C200HX/HG/HE(-ZE) communication board]
Set the switches on a C200HX/HG/HE(-ZE) communication board as follows.
Switch 1: Set to [4] (4-wire type, for RS-422A)
Switch 2 : Set to "ON" for terminator ON (termination resistance applied)
[Setting the switches on a CPM1 RS-422A adapter]
Set the terminator selector switch to "ON" (upper position).
S Connecting to a CS1 series serial communication board
INNER board with RS-422A/485 port equipped for CS1 series CPU Type :
CS1W-SCB41-E (The port 2 is RS-422A/485 port.)
[Allocation DM area settings for CPU]
Settings are written from the peripheral tool (a programming console or CX-Pro-
grammer) directly into the allocation DM area (system setting area) of the CPU.
After the settings are written, they become effective by turning the power ON,
restarting the unit, restarting the communication port, or executing the STUP
command.
In the following, the channel numbers of the allocation DM area and the settings
are shown.
Allocation
DM area
Writing Value
(CH)
Port 2
DM32010 8000
DM32011 0000
0007
DM32012 0000
DM32013 0000
Settings
Host link mode, 2 stop bits,
data length 7 bits, even parity,
Communication speed 9600 bps.
Communication speed 19200 bps.
Transmit delay time
No CTS control
Unit No.0 for host link
Section 5-2
CPM1-
CIF11
CPM1
0 ms.