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92
SV
104BIS User Manual
APPENDIX A
REMOTE CONTROL
USB 2.0
interface
is the serial one working with 480 MHz clock which enables one to control remotely the
unit. Its speed is relatively high, and it ensures the common usage of USB in all produced nowadays Personal
Computers.
The functions, which are developed in order to control data flow in the serial interfaces, ensure:
- Bi-directional data transmission,
- Remote control of the instrument.
The user, in order to program the serial interface, has to:
1. send "the function code",
2. send an appropriate data file or
3. receive a data file.
A.1
I
NPUT
/
O
UTPUT TRANSMISSION TYPES
The following basic input / output transmission types (called functions) are available:
#1
input/output of the control setting codes,
#2
read out of the measurement results in the
DOSE METER
mode,
#3
read out of the measurement results in the
1/1 OCTAVE or 1/3 OCTAVE
analysis mode,
#4
read out of the data file from the internal Flash-disc or RAM memory,
#5
read out of the statistical analysis results,
#7
special control functions,
#9
writing the data file into the internal flash-disk.
#D
read/write the data file from the external memory (SD Card),
A.2
FUNCTION
#1
-
I
NPUT
/O
UTPUT OF THE CONTROL SETTING CODES
#1 function enables the user to send the control setting codes to the instrument and read out a file containing
the current control state. A list of the control setting codes is given in Tab. A.1. The format of #1 function is
defined as follows:
#1,Xccc,Xccc,(...),Xccc;
or
#1,Xccc,X?,Xccc,(...),X?,Xccc;
where:
X
- the group code,
ccc
- the code value,
X?
- the request to send the current X code setting.
The instrument outputs in this case a control settings file for all requests X? in the following format:
#1,Xccc,Xccc,(...),Xccc;
In order to read out all current control settings the user should send to the device the following sequence of
characters:
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