b7 = 0 means that "overload does not happen"
= 1 means that "overload appeared”
b6 = 0 means that "spectrum is not averaged"
= 1 means that "spectrum is averaged"
b5 = 0 the instantaneous current result (RUN State)
= 1 the final result (STOP State)
b4..b0 = 1’0000 means FFT spectrum
0’1000 means 1/3 octave spectrum
0’0100 means 1/1 octave spectrum
0’0010 means 1/12 octave spectrum
0’0001 means 1/6 octave spectrum
Transmission Counter gives the information about the numbers of data bytes.
Each word of result consists of two data bytes (LSB first).
#4 function enables the user to read-out the data file from the internal Flash-disc memory. The data file formats
are given in Appendix B.
#4 function formats are defined as follows:
#4,0; the file containing the catalogue
#4,0,?; the count of the files
#4,0,index,count; the part of the file containing the catalogue
where:
index - first record
count - number of records in the catalogue
The catalogue of the files is a set of the records containing 16 words (16 bits each). Each record describes
one file saved in the instrument’s Flash-disc. The record structure is as follows:
words 0 - 3 8 characters of the file name
word 4 file type (binary number)
word 5 reserved
word 6 the least significant word of the file size
word 7 the most significant word of the file size
words 8 - 15 reserved
#4,4; the current setup
#4,4,?; size of current setup
#4,4,offset,length; the part of current setup
where:
offset - offset from the beginning of the current setup
length - number of bytes to read
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