Omron NT21 - SETUP MANUAL 10-2001 Setup Manual page 86

Connecting to the Host's RS-422A/485 Port
CQM1H CPU Units or SRM1, set the following communication conditions for the
PC Setup.
Item
I/O port
Communication mode
Baud rate
Stop bits
Parity
Data length
Unit #
*1 Set the Host Link baud rate at 9,600 bps or 19,200 bps with the Comm. Speed
at the NT21. For details, refer to Setting the Host Link Method (page 125).
Set the PC Setup settings directly from a Programming Device (e.g., CX-Pro-
grammer).
For details on operations relating to the PC Setup, refer to the manual for the PC
that is used.
The PC Setup addresses and settings to be made depending on the Unit to
which the connection is made are shown below.
When using port A of the Serial Communications Board of C200HX/HG/HE(-Z)E
Word Writing Value
DM6555 0001
DM6556 0303
0304
DM6558 0000
When using a CPM1, CPM2A, CPM2C, SRM1
Word Writing Value
DM6650 0001
DM6651 0303
0304
DM6653 0000
When using a CQM1H
Word Writing Value
DM6550 0001
DM6551 0303
0304
DM6553 0000
Setting at Host
RS-422A
Host Link mode
Set the same baud rate as for the NT21.
2 stop bits
Even
ASCII 7 bits
00
Settings
Host Link mode, no CTS control
Communication conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, baud rate:
9,600 bps
Data length 7 bits, 2 stop bits, even parity, baud rate:
19,200 bps
Unit # 00
Settings
Host Link mode, no CTS control
Communication conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, baud rate:
9,600 bps
Data length 7 bits, 2 stop bits, even parity, baud rate:
19,200 bps
Unit # 00
Settings
Host Link mode, no CTS control
Communication conditions set by the contents of DM
Data length 7 bits, 2 stop bits, even parity, baud rate:
9,600 bps
Data length 7 bits, 2 stop bits, even parity, baud rate:
19,200 bps
Unit # 00
Section 5-1
(*1)
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