Extron Electronics VN-COMMANDER - Manual (Page 135)

I456GB issue 8 125
VN-COMMANDER User Guide Appendix B: Serial Commands
Format of External Control Strings
The exact content of the serial data string will depend on
the device you are controlling; refer to the device’s user
guide for further advice.
A serial data string can comprise ASCII text, hexadecimal
data, and control characters. Pauses may also be inserted
as necessary to fine tune the timing of the messages.
Refer to the chart below:
To Transmit... Type in...
Text character
...the text characters using the
computer keyboard.
Control Character
...a caret (^ ) followed by the
control character.
For example: ‘^M’ will
effectively send a ‘carriage
return’. For letters, use only
upper case characters.
Hex Dat
...the hex pair preceded by a
caret ( ^ ) and an ‘at’ sign (@).
For example: ^@4B^@24 will
transmit hex 4B and hex 24 (
i.e.
ASCII characters ‘K’ and ‘$’).
A Pause
...a caret (^ ) followed by a
comma.
This will delay transmission of
subsequent characters in the
string by 100 milliseconds.
Pauses can be ‘stacked’ to create
longer delays, for example:
^,^,^,^,^, will give a delay of
500 milliseconds (0.5 second).