Svantek SV 971A, Руководство пользователя

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SV 971A User Manual
– Appendixes
148
#4,4,offset,length; part of current setup file,
where:
offset - offset from the beginning of the current setup file,
length - number of bytes to read,
Note: The "\" character is treated as the file name of the catalogue and must be sent to the instrument.
All data words are sent <LSB> (least significant byte) first.
When an error is detected in the file specification or data, the instrument responds with:
#4,?;
Note: Current setup file placed in RAM is serviced by this command in SV 971A only. For data files
access see
A.1 Function #D
– data files access.
A.6. F
UNCTION
#5
–
STATISTICAL ANALYSIS RESULTS READ
-
OUT
#5 function enables one to read out the statistical analysis results.
#5 function format is defined as follows:
#5,p;
where:
p - the number of the profile (1, 2 or 3)
The device responds, sending the current classes of the statistics in the following format:
#5,p;<Status Byte> <LSB of the transmission counter> <MSB of the transmission counter>
<NofClasses><BottomClass><ClassWidth><Counter of the class> (...) <Counter of the class>
Status Byte gives the information about the current state of the instrument.
D7 D6 D5 D4 D3 D2 D1 D0
where:
D7 = 0 means "overload does not happen",
= 1 means "overload appeared",
D5 = 0 instantaneous current result (RUN State),
= 1 final result (STOP State),
D6, D0 to D4 reserved bits.
Note: There is no any succeeding transmission in the case when the Status Byte is equal to zero.
The transmission counter is a two-byte word denoting the number of the remaining bytes to be transmitted.
Its value is calculated from the formulae:
Transmission counter = 6+n * (4 * the number of the classes in the statistics)
where:
n is a number of the transmitted statistics. For p = 1, 2 or 3 only one statistic is transmitted (n = 1).
NofClasses is a two-byte word denoting the number of classes in the statistic.
BottomClass is a two-byte word denoting the lower limit of the first class (*10 dB).
ClassWidth is a two-byte word denoting the width of the class (*10 dB).