Omron Programmable Terminals NT31 NT31C Setup Manual page 72

Connecting to the RS-232C Port at the Host
Allocation DM area (CH)
Port 1
m
m+1 m+1
m+2
m+6
Connecting to a CPU Unit
Allocation DM Area Settings for CPU
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. After the settings are written, they become effective by turning the
power ON, restarting the unit, restarting the communication port, or execution of
the STUP command.
In the following, the channel numbers of the allocation DM area and the settings
are shown.
Writing Value Writing Value
Port 2
m+10 8000
0000
m+11 m+11
0007
m+12 0000
m+16 0000
CV-series and CVM1/CV-series (-EVj) CPU Units
• CV500-CPU01-EV1/CV1000-CPU01-EV1/CV2000-CPU01-EV1
• CVM1-CPU01-EV2/CVM1-CPU11-EV2/CVM1-CPU21-EV2
PC Setup
When connecting to a CVM1/CV series CPU, set the following communication
conditions for the PC Setup.
Item
Communications speed
Stop bit
Parity
Data length
Unit #
*1 Set the host link communications speed at 9600 bps or 19200 bps with the
memory switch at the NT31/NT31C. For details, refer to Setting the Host Link
Method (page 160).
Either set PC Setup directly from a Programming Device (e.g. SYSMAC support
software), or transmit the PC Setup made at a Programming Device to the CPU.
For details on the PC Setup, refer to the SYSMAC CVM1/CV500/1000/2000 Op-
eration Manual: Ladder Diagrams (W202-E1-j).
m=DM30000+100×unit # (CH)
host link mode, 2 stop bits, even parity, data
length 7 bits
Communication speed 9600 bps.
Communication speed 19200 bps.
Transmit delay time 0 ms.
No CTS control Unit No.0 for host link
Setting at Host
Set the same speed as set at the NT31/NT31C
2 stop bits
Even
ASCII 7 bits
00
Section 4-1
Settings Settings
(*1)
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