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filtered adaptively -- (see figures 1-25, page 50 to figure 1-43, page 82) to use for controlled
variable measurement. The measured values are read in with a scanning rate according to
the cycle time. The noise level is suppressed by the adaptive filter. The storage procedure
operates with cyclic data reduction and subsequent refilling so that slow controlled systems
can be entered.
After the start ID has been run through (the controlled variable x must have left the start ID
band within 50% of the set monitoring time tU), 95% of the full range must have been
reached at the latest at
controlled system with safety reserve. The remaining time is required for the full scale
identification. The full scale identification can also take place immediately after the start
1
identification, but
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identification. Recording of the measured value pairs is ended on identifying the full scale.
A comparison with the recorded transient function is now made based on the stored Ptn
models with n = 1 to 8 and equal time constants T by variation of n and T. The determined
line gain ks is transfered to the line models. The comparison is made over the minimum er-
ror area F (n, T)
Additionally a special entry of real dead times is made which then shifts the identified control
line to higher orders.
Control lines with compensation and periodic transient of 1st to 8th order with a transient
time T95 of 5 s to 12 h can be identified. Dead time parts are permissible. In S-controllers
the transient time T95 should be twice the positioning time Ty.
SIPART DR22 6DR2210
C79000-G7476-C154-03
2
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of tU. The set monitoring time (tU) must be ≥ 2 T95 of the
3
of the performed measurements are always required for the full scale
3
1.5 Functional description of the structure switches
1.5.5 Control algorithm, parameter control, adaptation
1 Technical Description
97
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