Emerson I-0021 Manuel D’Utilisation
NGA-2000 System Calibration
Supplement - 26
NGA 2000
90003482(2) [NGA-e (MLT-Software 3.2.X)] 07/98
4.2.1 Filling sequence buffer
The contents of the sequence buffer depends on
•
calibration types and belonging module type
•
coherence of modules and system valves
An evaluation procedure has the choice of listed action types.
Calibration types
module type
action types
action data
NOP
ALL-AMs
USER-STEP
Nr
ZERO-CAL
single AM
SWITCH_VALVE
mask
SPAN-CAL
Evaluation-
PURGEWAIT
time
ZERO/SPAN-CAL
procedure
ZERO
AM
SPAN1-CAL
SPAN
AM
range
SPAN2-CAL
CALWAIT
AM
SPAN3-CAL
SPAN4-CAL
END-OF-PGRM
SPAN4-CAL
END-OF-PGRM
One calibration type has following sequence frame:
1. SWITCH_VALVE
2. do different PURGEWAIT, ZERO, or SPAN which are possible with this valve adjustment
2. do different PURGEWAIT, ZERO, or SPAN which are possible with this valve adjustment
(order is determined by shortest purge time)
3. do different CALWAIT (wait for finishing a started calibration)
The evaluation procedure optimizes the order of actions by time.
The only condition is in case of ZERO/SPAN-CAL, where an AM has to do first its "ZERO"
before any of its "SPAN"s can be done.
The only condition is in case of ZERO/SPAN-CAL, where an AM has to do first its "ZERO"
before any of its "SPAN"s can be done.
The PURGEWAIT-delay-measurement is started with the last SWITCH_VALVE-action.
We can see, that the SYSCAL-types "ZERO_ALL" and "ZEROSPAN_ALL" are special cases
of a user program.
of a user program.
•
ZERO_ALL:
ZERO-CAL of ALL-AMs
•
ZEROSPAN_ALL:
ZERO/SPAN-CAL of ALL-AMs