Reading The Program Memory; Fast Reading Of The Memory - Chauvin Arnoux C.A 43 FILEDMETER Mode D'emploi

If the rotary switch is operated during the output of information, the output is interrupted.
The buttons are inoperative during all the output of information.
To stop the data output, set the rotary switch to OFF.
READ THE MEMORY PROGRAM
This function is accessible in all operating modes.
Codes to send to the instrument to obtain the contents of the memory program :
- 2A Hexa, 42 decimal
The response to this message will be the emission by the instrument, to the TxD output, of
the codes corresponding to the values contained in the memory. The output format is the
same as for the interrogation of the memory when the instrument is switched On.
The non-programmed functions are indicated by three hyphens (- - -).
During the printout of the values contained in the memory program, the operation of the rotary
switch, or pressing one of the buttons, has no effect on the data output. Only the OFF position
stops the instrument.
RAPID READ OF THE MEASUREMENT
This read instruction gives access to the measurement with a very short time constant. This
allows processing by peripheral computer.
To be taken into account, this read instruction must be sent to the instrument when it is in
Measurement or Record mode, otherwise an error code is sent back :
- Code Error 1
- Code Error 3
The minimum time between 2 read instructions may not be < 10 ms.
Two measurement values are available: normal measurement and PEAK measurement, the
latter allowing the analysis of pulse signals.
Reading the Normal 20ms measurement gives the measurement corresponding to the
averaging of 80 measurements of 250µs.
This 20ms measurement is obtained by sending the following code to RxT :
- 22 Hexa, 34 decimal
Corresponding graphic: *
if the instrument is in Read Memory mode
if the instrument is in Programming mode
corresponding graphic: «
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