Contemporary
Research
15
232-STSi PAL TV Tuner
RS-232 Control
Preset Commands and Replies
$R
Request
Presets
Asks for reply with list of presets stored in memory
Example:
‘>$R’ asks for list from Unit 1
Reply:
‘<1$TR2-31,35,52,126‘
$G=xxx
Preset Information
Returns preset number, freq, standard, label (1-8 characters)
Number of characters follows same structure as T status response
Example:
‘>$G31’ asks for preset 31 information
Reply:
‘<1$TG031,271.25,02,BBC‘
$N=xxx
Request Label
Asks for reply with channel text assigned to specific channel
Example:
‘>$N31’ asks for label assigned to channel 31
Reply:
‘<1$TN031,BBC‘
Terminal Communication Commands
EF
Echo Off
Characters received will not be re-transmitted (power up default).
EN
Echo On
Characters received will be re-transmitted.
Example:
‘
>EN’ Characters received will be re-transmitted.
ID
Product ID
Returns the product model number and software version.
Z!
Zap
Reconfigures unit for all factory default settings.
RS-232 Command Hints and Tips
Leading zeros may be included or omitted from command parameters.
Example:
‘>TC=009’
Selects channel 9 as A/V output, same as ‘>TC=9’.
Multiple commands may be concatenated as single strings up to 120
ASCII
characters long.
Example:
‘>XXTC=9’
Selects Mute A/V off, channel 9.
Example:
‘ >S0=0S4=0’
Selects
CATV
mode, no front panel lockout.
Mute A/V Off command is not required in any command; however it may be useful to send Mute A/V Off in case
Mute A/V had been set On from the front panel.
Sending all
3
status request commands to the
232-STSi
back-to-back for a full status update is allowed.
Example:
‘>STSVSS’
Returns all
3
response strings back-to-back.
The carriage return line feed at the end of each 232-STSi response allows for easy monitoring of responses with
an ASCII terminal program. You may use ASCII CR, Hex $0D, or keyboard ‘Enter’ in programming.
You don’t have to use the ‘=’ character between the command and parameter – the string works either way.
