Filter
Top Products
Programming
81
NI Series WebConsole & Programming Guide
RS-232/422/485 Send_Commands (Cont.)
Command Description
GET BAUD
Get the RS-232/422/485
port’s current communication
parameters.
The port sends the parameters to the device that requested the information.
The port responds with:
<port #>,<baud>,<parity>,<data>,<stop> 485 <ENABLED | DISABLED>
Syntax:
SEND_COMMAND <DEV>,"'GET BAUD'"
Example:
SEND_COMMAND RS232_1,"'GET BAUD'"
System response example:
Device 1,38400,N,8,1 485 DISABLED
HSOFF
Disable hardware handshak-
ing (default).
Syntax:
SEND_COMMAND <DEV>,"'HSOFF'"
Example:
SEND_COMMAND RS232_1,"'HSOFF'"
Disables hardware handshaking on the RS232_1 device.
HSON
Enable RTS (ready-to-send)
and CTS (clear-to-send)
hardware handshaking.
Syntax:
SEND_COMMAND <DEV>,"'HSON'"
Example:
SEND_COMMAND RS232_1,"'HSON'"
Enables hardware handshaking on the RS232_1 device.
RXCLR
Clear all characters in the
receive buffer waiting to be
sent to the Master.
Syntax:
SEND_COMMAND <DEV>,"'RXCLR'"
Example:
SEND_COMMAND RS232_1,"'RXCLR'"
Clears all characters in the RS232_1 device's receive buffer waiting to be sent
to the Master.
RXOFF
Disable the transmission of
incoming received charac-
ters to the Master (default).
Syntax:
SEND_COMMAND <DEV>,"'RXOFF'"
Example:
SEND_COMMAND RS232_1,"'RXOFF'"
Stops the RS232_1 device from transmitting received characters to the Master.
RXON
Start transmitting received
characters to the Master
(default).
Enables sending incoming received characters to the Master. This command is
automatically sent by the Master when a 'CREATE_BUFFER' program
instruction is executed.
Syntax:
SEND_COMMAND <DEV>,"'RXON'"
Example:
SEND_COMMAND RS232_1,"'RXON'"
Sets the RS232_1 device to transmit received characters to the Master.