NetLinx Programming of DXLink Transmitters and Receivers
74
Hardware Reference Manual – DXLink™ Twisted Pair Transmitters/Receiver
CTON
Set the total time of IR pulses
transmitted and is stored in non-
volatile memory.
This command sets the pulse length for each pulse generated by the 'CH' (see previous page) or
'XCH' (see next page) Send Commands in tenth of a second increments.
Syntax:
SEND_COMMAND <DEV>,"'CTON',<time>"
Valid response:
time = 0 to 255. Given in 1/10th of a second increments. Default is 5 (0.5 seconds).
Example:
SEND_COMMAND IR_1,"'CTON',20"
Sets the IR pulse duration to 2 seconds.
GET BAUD
Get the IR port’s current
communication parameters.
The port sends the parameters to the device that requested the information.
Syntax:
SEND_COMMAND <DEV>,"'GET BAUD'"
Example:
SEND_COMMAND dvRXRS232,"'GET BAUD'"
The port responds with:
Port <port #>,<baud>,<parity>,<data>,<stop>
GET MODE
Poll the IR/Serial port’s
configuration parameters and report
the active mode settings to the
device requesting the information.
NOTE:
Works with Port 3 only.
Syntax:
SEND_COMMAND <DEV>,"'GET MODE'"
The port responds with:
<port #> <mode>,<carrier>,<io link channel>.
Example:
SEND_COMMAND IR_1,"'GET MODE
'
"
The system could respond with:
PORT 3 IR,CARRIER,IO LINK 0
IROFF
Halt and clear all active or buffered
IR commands being output on the
designated port.
Syntax:
SEND_COMMAND <DEV>,"'IROFF'"
Example:
SEND_COMMAND IR_1,"'IROFF'"
Immediately halts and clears all IR output signals on the IR port.
SET BAUD
Use to set the IR communication
parameters.
NOTE:
Before sending the SET
BAUD command, you must set the
IR port to Data mode (for the SET
MODE command, see
page 74)
NOTE:
This value is not saved in non-volatile memory and is reset to default (9600, N, 8, 1) at
power-up.
Syntax:
SEND_COMMAND <DEV>,"'SET BAUD <baud>,<parity>,<data>, <stop>'"
Valid responses:
• baud = 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
NOTE:
The only valid 9 bit combination is (baud),N,9,1.
Example:
SEND_COMMAND DEVICE_1,"'SET BAUD 1200,N,8,1'"
Sets the DEVICE_1 port’s communication parameters to 1200 baud, no parity, 8 data bits, and
1 stop bit.
SET MODE
Set an IR port to either IR, Serial,
or Data mode.
Syntax:
SEND_COMMAND <DEV>,"'SET MODE'<mode>"
Valid response:
mode =
• IR (standard IR output with carrier)
• SERIAL (IR without carrier and waveform inverted)
• DATA (1-way serial/TTL)
Example:
SEND_COMMAND IR_1,"'SET MODE IR'"
Sets the IR_1 port to IR mode for IR control.
SP
Generate a single IR pulse.
You can use the 'CTON' to set pulse lengths and the 'CTOF' to set time Off between pulses.
Syntax:
SEND_COMMAND <DEV>,"'SP',<code>"
Valid response:
code = IR code value 1 to 252 (253 to 255 reserved).
Example:
SEND_COMMAND IR_1,"'SP',25"
Pulses IR code 25 on IR port on RX.
IR SEND_COMMANDs (Transmitters and Receivers)
SET MODE (IR
command)
