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I) V24/RS232/485-Interface - Basics
90003752(2) [AK-Commands] 11/01
AK
1 - 19
6. Function sequence and error status after the receipt of the
'SRES' or 'STBY' commands
1. The test bench control computer is sending the control command SRES (Reset)
to the system unit or any single analyzer.
All running functions or procedures will be canceled. An initializing will start, that is
analogous to the switching on of the system unit or the analyzer: CPU and memory
check, regulating or controlling of required temperatures, igniting of the flame in a FID
an so on. The operation mode of the system or analyzer is "stand-by" during the
initializing, even if the device is not ready and error free. That means, the status STBY
will be reported to the read command ASTZ. The test bench control computer can only
realize with the read command ASTF (error status), if the device is ready for
measurements. The device will be ready to measure, if the essential functions of the
current measuring instruction will be error free.
Example:
The status of the system unit or analyzer is SXYZ. The test bench control computer
sends SRES:
Test bench control computer sends SRES Kn
→ System or analyzer will response SRES x
The system unit or the analyzer will cancel the status SXYZ. It will run a CPU and
memory check and it will control the temperatures. If the temperatures are out of the
allowed setpoint range, the device will regulate it. The FID will control the flame and will
try to ignite it, if necessary, and so on. The test bench control computer will read the
operation mode and the error status:
Test bench control computer sends ASTZ Kn
→ System or analyzer will response ASTZ 0 SMAN STBY
or
Test bench control computer sends ASTZ Kn
System or analyzer will response ASTZ x SMAN STBY
Test bench control computer sends ASTF Kn
System or analyzer will response ASTF x n
The error status byte will be zero and the system or the analyzer will be ready to
measure, if all temperatures are in the allowed setpoint range, if the FID flame is
burning etc.
If these parameters are not correct, the error status byte will be different from zero. The
test bench control computer will read the operation mode and the error status as long as
the system or the analyzer will be ready to measure. The test bench control computer
will control the maximum time for this reading.