Miteq D-9301, Руководство по эксплуатации и обслуживанию, Страница: 26 / 86

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3.3.2.2.4 Parameter Bytes
Parameters are numeric characters which are sent MSD first, LSD
last. Non-numeric parameters such as ",", "." or values beyond
the range of the converter will be rejected and cause the
converter to respond with error code "b".
3.3.2.2.5 Trailer Byte
The Trailer byte is 7DH, ASCII character "}".
3.3.2.2.6 Checksum Byte
The Checksum byte is the sum modulo 95 of all message characters
beginning with the header byte up to and including the trailer
byte.
The value 32 is subtracted from each character value before
taking the modulo 95 sum. The value 32 is added to the final sum
to obtain the Checksum value. All values are in decimal.
Checksum = Mod [(character value - 32), 95] + 32
3.3.2.3 Command Codes
The following paragraphs describe each of the command codes.
3.3.2.3.1 Frequency Code = F
The Frequency command requires a 7 or 8 digit parameter which
sets the frequency of the converter in kHz. Assuming no error
conditions, the converter is immediately set to the frequency.
Remote Command Sequence (8 Digit): F14000500
(7 Digit): F3705000
Converter Response: F
3.3.2.3.2 Mute Code = M
The Mute command requires no parameters. The output of the
converter is muted until a Frequency command is received.
Remote Command Sequence: M
Converter Response: M