Svantek SVAN 979, User Manual

Page: 189 / 377

189
SVAN 979 User Manual - Appendixes
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).
Counter of the class is a four-byte word (LSB first) containing the number of the measurements
belonging to the current class.
Note: The bytes in the words are sent according to the scheme <LSByte>..<MSByte>.
A.6. F
UNCTION
#6
–
R
EMOTE SETTING OF THE USER FILTERS
Function #6 enables one to send to the instrument the coefficients of the user filters. In the available formats
description of #6 functions the following symbols are used:
type - 0 for the vibration filters
- 1 for the acoustic filters
name , name
1
, name
2
- filter names given by the user
v - real type value, expressed in [dB]
first - integer type value (number of the coefficient in the user filter)
pos - integer type value (Total value number)
avd - for the vibration filters: 0 - Acc, 1- Vel, 2 - Dil
- for the acoustic filters, this parameter is always equal to 0
cal - the calibration coefficient given as the real number expressed in [dB]
chn - channel number (1, 2, 3 or 4)
#6 function formats are defined as follows:
#6,type,L;
This function returns the list of the defined (existing in the instrument) filters in the following format:
#6,type,n,name
1
, ... ,name
n
;
#6,type,W,name,v,v,...,v;
This function sets the coefficients of the new user filter named as name . The name parameter should
be unique (in the instrument there is not any other filter with the same name, otherwise it will be an error).
The function answers in the format:
#6;
#6,type,R,name;
This function returns the coefficients of the user filter named as name . If the name filter does not exist,
an error occurs. The function’s answer is in the following format:
#6,type,n,v
1
,v
2
, ... ,v
n
;
#6,type,D,name;
This function deletes from the instrument the user filter named as name . If the name filter does not exist,
an error occurs. The function answers in the format: #6;
#6,type,S,name,v,v,...,v;
This function sets the user filter named as name . If the name filter already exists, its coefficients are
redefined. If the name filter does not exist, the filter is created. The function answers in the format: #6;
#6,type,C,name,first,v,v,...,v;
This function sets the coefficients in the user filter named as name starting from the first position.
If the name filter does not exist, an error occurs. The function answers in the format: #6;