General−use Serial CommunicationsFP0
10 − 7
10.2 System Register Settings
Setting the Baud Rate (System Register 414)
The baud rate (transmission speed) for general−use serial communication is set to
“9600 bps” (H1) in the default settings.
To change this setting to match the external device connected to the RS232C port,
select one of the values listed below.
H 00
RS232C port
H0: 19200 bps
H1: 9600 bps
H2: 4800 bps
H3: 2400 bps
H4: 1200 bps
H5: 600 bps
H6: 300 bps
Tool port
H0: 9600 bps
H1: 19200 bps
If anything other than H0 or
H1 is set for the baud rate of
tool port, the baud rate will
be 9600 bps.
Example: Setting 19,200 bps for both the tool port and RS232C port
∋ Write H100.
Setting the Reception Buffer (System Registers 417 and 418)
In the default settings, all areas of the data registers are set to be used as reception
buffers. To change the area of the data register used as the reception buffer, specify the
initial number in system register 417, and the volume (number of words) in system
register 418.
The reception buffer is configured as shown below.
Number of
reception bytes
Initial area specified with
system register 417
Number of words specified
by system register 418
Received data
storage area
To Next Page
Loading...
