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Connecting to the RS-232C Port at the Host
Section 4-1
C-series C200HS, C200HX/HG/HE (-ZE), CPM1, CQM1 CPUs, SRM1
Connect to the built-in RS-232C port of the CPU, or the RS-232C port (port A, B)
of the communication board. Note that the connection to a CPM1 must be made
via an RS-232C adapter (CPM1-CIF01).
Reference: Connection to the peripheral port of the CPU is not possible.
- PC system setting area settings
When connecting to a C200HS, C200HX/HG/HE (-ZE), CPM1, or CQM1
CPU, or SRM1, set the following communication conditions for the PC system
setting area.
Item Setting at Host
Communication mode Host link mode
Communications speed Set the same speed as set at the NT31/NT31C
(*1)
Stop bit 2 stop bits
Parity Even
Data length ASCII 7 bits
Unit # 00
*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 “Settings the Host Link
Method” (page176).
Set the PC system setting area settings directly from a peripheral tool (e.g.
SYSMAC support software).
For details on operations relating to the PC system setting area, refer to the
manual for the PC which is used.
The PC system setting area word numbers and settings to be made depending
on the unit and port to which the connection is made are shown below.
When using the built-in RS-232C port of C200HX/HG/HE (-ZE), CQM1, SRM1
Word # Writing Value Settings
DM6645 0001 Host link mode, no CTS control
Communication conditions set by the contents of DM
DM6646 0303 Data length 7 bits, 2 stop bits, even parity,
communications speed: 9600 bps
0304 Data length 7 bits, 2 stop bits, even parity,
communications speed: 19200 bps
DM6648 0000 Unit # 00
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