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NXC-COM2 Dual COM Port Control Card
9
NetLinx Cardframe, Control Cards, and NetModules - Operation Reference Guide
NXC-COM2 Send_String Escape Sequences
NXC-COM2 Send_Commands (Cont.)
Command Description
TSET BAUD Temporarily set the RS-232/422/485 port's communication parameters for a device. 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.
Syntax:
SEND_COMMAND <DEV>,"'TSET BAUD <baud>,<parity>,<data>,<stop> [485 <Enable | Disable>]'"
Variables:
Baud: baud rates are: 230400, 115200, 76800, 57600, 38400, 19200, 9600, 4800, 2400, 1200, 600,
300, 150.
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-232/422
485 Enable: Enables RS-485 mode and disables RS-234/422
Note: The only valid 9 bit combination is (baud),N,9,1.
Example:
SEND_COMMAND RS232_1,"'TSET BAUD 115200,N,8,1 485 ENABLE'"
Sets the RS232_1 port's communication parameters to 115,200 baud, no parity, 8 data bits, 1 stop bit,
and enables RS-485 mode.
TXCLR Stop and clear all characters waiting in the transmit out buffer and stops transmission.
Syntax:
SEND_COMMAND <DEV>,"'TXCLR'"
Example:
SEND_COMMAND RS232_1,"'TXCLR'"
Clears and stops all characters waiting in the RS232_1 device's transmit buffer.
XOFF Disable software handshaking (default).
Syntax:
SEND_COMMAND <DEV>,"'XOFF'"
Example:
SEND_COMMAND RS232_1,"'XOFF'"
Disables software handshaking on the RS232_1 device.
XON Enable software handshaking.
Syntax:
SEND_COMMAND <DEV>,"'XON'"
Example:
SEND_COMMAND RS232_1,"'XON'"
Enables software handshaking on the RS232_1 device.
NXC-COM2 Send_String Escape Sequences
Command Description
27,17,<time> Send a break character for a specified duration to a specific device.
Syntax:
SEND_STRING <DEV>,"27,17,<time>"
Variable:
time = 1 - 255. Measured in 100 microsecond increments.
Example:
SEND_STRING RS232_1,"27,17,10"
Sends a break character of 1 millisecond to the RS232_1 device.