Specifications

NetLinx Programming
89
NI & DVX Central Controllers - WebConsole & Programming Guide
IR/Serial SEND_COMMANDs (Cont.)
Command Description
CH Send IR pulses for the selected channel. All channels below 100 are transmitted as two digits.
• If the IR code for ENTER (function #21) is loaded, an Enter will follow the number.
• If the channel is greater than or equal to (>=) 100, then IR function 127 or 20 (whichever exists) is
generated for the one hundred digit.
• Uses 'CTON' and 'CTOF' times for pulse times.
Syntax:
SEND_COMMAND <DEV>,"'CH',<channel number>"
Variable:
channel number = 0 - 199.
Example:
SEND_COMMAND IR_1,"'CH',18"
This device performs the following:
• Transmits IR signals for 1 (IR code 11). The transmit time is set with the CTON command.
• Waits until the time set with the CTOF command elapses.
• Transmits IR signals for 8 (IR code 18).
• Waits for the time set with the CTOF command elapses. If the IR code for Enter (IR code 21) is
programmed, the Controller performs the following steps.
1) Transmits IR signals for Enter (IR code 21).
2) Waits for the time set with the CTOF command elapses.
CP Halt and Clear all active or buffered IR commands, and then send a single IR pulse.
Set the Pulse and Wait times with the 'CTON' and 'CTOF' commands.
Syntax:
SEND_COMMAND <DEV>,"'CP',<code>"
Variable:
code = IR port's channel value 0 - 252 (253 - 255 reserved).
Example:
SEND_COMMAND IR_1,"'CP',2"
Clears the active/buffered commands and pulses IR_1 port's channel 2.
CTOF Set the duration of the Off time (no signal) between IR pulses for channel and IR function transmissions.
Off time settings are stored in non-volatile memory. This command sets the delay time between pulses
generated by the 'CH' or 'XCH' send commands in tenths of seconds.
Syntax:
SEND_COMMAND <DEV>,"'CTOF',<time>"
Variable:
time = 0 - 255. Given in 1/10ths of a second. Default is 5 (0.5 seconds).
Example:
SEND_COMMAND IR_1,"'CTOF',10"
Sets the off time between each IR pulse to 1 second.
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' or 'XCH' send commands in tenths of seconds.
Syntax:
SEND_COMMAND <DEV>,"'CTON',<time>"
Variable:
time = 0 - 255. Given in 1/10ths of a second. Default is 5 (0.5 seconds).
Example:
SEND_COMMAND IR_1,"'CTON',20"
Sets the IR pulse duration to 2 seconds.