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Pacific Research Solutions RI-300e User Manual
Page 41
VALID S-COMMAND and DATA
All DTMF digits are valid either as data in an S-Command or as macro data. Sometimes the DTMF character “C” and “D” is
not valid as S-Command data within macros. The “C” and “D” characters are used by the macro programming. The RI-300
will check all data within an S-Command. If any of data fields are out of range, have an incorrect number of digits or have
missing digits, the RI-300 will ignore both the S-Command and its data and will return an error message.
RULES FOR LEADING ZEROS IN S-COMMANDS
Leading zeros means that if a command requires a 3-digit value, whether the value is 001 or 100, a total of three digits must be
used. All S-Command codes are two digits long. If the first digit of the S-Command is a zero it must always be entered. For
most S-Command data, use the following rules:
1. If the data is a single parameter, then leading zeros are not required for the data. Example: The controller will see 01 or 1
as the same value if used as the last parameter.
2. All commands that require multiple parameters require leading zeros for each parameter except for the last parameter.
Example: Anytime an S-Command requires two data parameters (such as S-Command 40), the first data parameter must
have leading zeros and the second data parameter does not require leading zeros.
3. If you are not sure, always use leading zeros especially when you are not yet familiar with the controller.