Yamaha RCX141, User Manual

Page: 332 / 402

7-
4
RS-232C interface
7
3. Communication specifications
3. Connection cable examples
a. Cable capable of hardware busy control
NC
RXD
TXD
NC
GND
NC
RTS
CTS
NC
1
2
3
4
5
6
7
8
9
Controller
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
External device
b. Cable not using control wires
NC
RXD
TXD
NC
GND
NC
RTS
CTS
NC
1
2
3
4
5
6
7
8
9
Controller
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
External device
* For signal wire layout on the external device, refer to the instruction manual for that
device.
3.2 Transmission mode and communication parameters
Transmission mode Full duplex
Synchronous system Start-stop synchronization
Baud rate [bps] 4800, [9600], 19200, 38400, 57600
Character length [bit] 7, [8]
Stop bit [bit] [ 1], 2
Parity None, even, [odd]
RTS/CTS control Yes, [No]
Termination code CR, [CRLF]
XON/XOFF control [Yes], No
Receive buffer 1024 bytes
Transmit buffer 1024 bytes
Numbers or items in square brackets [ ] indicate settings after initialization.
n
NOTE
1) Termination code
• Robot transmit
When CRLF (carriage
line feed) is selected:
Transmits data with a CR code
(0DH) and LF code (0AH) added
at the end of a line.
When CR (carriage return) is
selected:
Transmits data with a CR code
(0DH) added at the end of a line.
• Robot receive
Receives data by treating entries
made up to the CR code as 1 line
and ignoring the LF code,
regardless of which termination
code is selected.
2) If the "Display language"
parameter is set to "JAPANESE"
in "SYSTEM" mode, then set the
character length to 8 bits.
Katakana letters (Japanese
phonetic) cannot be output from
the communication port if set to 7
bits.