AMX NetLinx Integrated Controllers NI-3000 User Manual

Page 122

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Programming

116

NetLinx Integrated Controllers

RS-232/422/485 Send_Commands (Cont.)

HSON

Enables 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

Clears all characters in the
receive buffer waiting to be
sent to the Master Card.

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 Card.

RXOFF

Stops transmitting received
characters to the Master Card
(default).

Syntax:

SEND_COMMAND <DEV>,'RXOFF'

Example:

SEND_COMMAND RS232_1,'RXOFF'

Stops the RS232_1 device from transmitting received characters to the Master
Card.

RXON

Starts transmitting received
characters to the Master
Card.

This command is sent automatically when issuing a CREATE_BUFFER
Send_Command.

Syntax:

SEND_COMMAND <DEV>,'RXON'

Example:

SEND_COMMAND RS232_1,'RXON'

Sets the RS232_1 device to transmit received characters to the Master Card.

SET BAUD

Sets the RS-232/422/485
port's communication
parameters.

Syntax:

SEND_COMMAND <DEV>,'SET BAUD

(Baud),(Parity),(Data),(Stop) (485 DISABLE/

ENABLE)'

Variables:

Baud = 150, 300, 600, 1200, 2400, 4800, 9600, 19200, 38400 (factory set
default), 57600, 76800, 115200

Parity = N (none), O (odd), E (even), M (mark), S (space)

Data = 7 or 8 data bits

Stop = 1 or 2 stop bits

485 Disable = Disables RS-485 mode and enables RS-422.

485 Enable = Enables RS-485 mode and disables RS-422.

Example:

SEND_COMMAND RS232_1,'SET BAUD 9600,N,8,1 485

ENABLE'

Sets the RS232_1 port's communication parameters to 9,600 baud, no parity, 8
data bits, 1 stop bit, and enables RS-485 mode.

TSET BAUD

Temporarily sets the RS-232/
422/485 port's
communication parameters.

Syntax:

SEND_COMMAND <DEV>,'TSET BAUD

(Baud),(Parity),(Data), (Stop) (485 DISABLE/

ENABLE)'

TSET BAUD works the same as SET BAUD, except that the changes are not
permanent, and the previous values will be restored if the power is cycled on
the device.

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