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PLC Setup Area Settings
When connecting to a C200HX/HG/HE(-Z)E or CPM1, CPM2A, CPM2C, CQM1H CPU Units
or SRM1, set the following communications conditions for the PLC Setup area.
Item
I/O port
Communications mode
Communications speed
Stop bit
Parity
Data length
Unit #
Note: Set the Host Link communications speed (baud rate) to 9600 bps or 19200 bps with
the Communications Setting menu item in the CX-Designer and the System Menu for
the NS-series PT. For details, refer to 1-4 Settings for Host Link.
Set the PLC Setup area settings directly from a Programming Device (e.g. CX-Programmer).
For details on operations relating to the PLC Setup area, refer to the manual for the PLC
which is used.
The PLC Setup area word numbers and settings to be made depending on the unit to which
the connection is made are shown below.
When using port A of the 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
RS-422A
Host link mode
Set the same baud rate as set at the NS-series PT (See note.)
2 stop bits
Even
ASCII 7 bits
00
Host link mode, no CTS control, communications
conditions set by the contents of DM area
Data length 7 bits, 2 stop bits, even parity,
communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity,
communications speed: 19200 bps
Unit # 00
Host link mode, no CTS control, communications
conditions set by the contents of DM area
Data length 7 bits, 2 stop bits, even parity,
communications speed: 9600 bps
Data length 7 bits, 2 stop bits, even parity,
communications speed: 19200 bps
Unit # 00
28
Setting at Host
Settings
Settings
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