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II) V24/RS232/485 Interface - Single Analyzers and Systems
5. Description of all Write Commands
EFDA – Write command "Function length"
With this write command the FU will get the function length of the function "SXXX" in
seconds for the called channel (device), e.g. "Time Out" for purging or for switching on the
calibration gases. If the function "SXXX" will be a procedure with several internal steps, the
times will be valid for each step and not for the whole procedure. If the function will be for
instance "Automatic calibration", the times will be valid for each spangas resp. each range
and not for the whole procedure. During this time of flow the analyzer will test, if the
setpoint value will be reached and stable. If this test will not succeed during the function
time, it will produce a function error. The same effect will exist for other procedures like
linearization, converter test etc. If the function length will be set to zero, the function will
run without any time limit.
Functions like "SATK", "SLIN", "SLCH", "SALI", "SQEF", "SNGA" or "SEGA" will run time
controlled according to the times T1 to T4 or stability controlled.
Time control: If only T1 is set or if T2 = 0, time control will run with step time T1
(total function time).
Stability control: Times T1 to T4 have to be set.
Write command
EFDA Kn SXXX T1 (T2 T3 T4)
"Time out"; after this time is over, the procedure
will be canceled and you will get an error message;
this time will start after the wait.
Integration time to get the mean value of one signal.
Stability time: All signals have to be in a certain
tolerance during this time.
Time to wait for: after the switching on / changing
of gases or the stepping time of time control.
Function
Addressed channel
Code
Response
90003752(1) [AK-Commands] 10/98
AK
2 - 85