28 GOSSEN METRAWATT GMBH
Saving and Loading Device Settings
Controller Sorts
Parameters see page 16
Code Function Comment
Current settings are saved as user-defined default settings.
The settings which conform to the order features are over-
written in the process.
A configuration per customer specifications (K9) is stored
here, and is overwritten in the process.
User-defined default settings are loaded.
If settings have not already been saved with d in the past,
the settings are loaded to match the order features.
All entries, including self-tuning and calibration results, are
overwritten in the process.
Factory default settings are loaded.
The settings do not conform to the order features.
Code Controller Sort Comment
Limit transducer
Switching output I is active where actual value < current setpoint, and switching output II is
active where actual value > current setpoint + dbnd. Switching hysteresis is equal to HYST.
Switching status changes are possible once per tc.
Actuator
Read-out of a constant actuating signal to switching output I where YST > 0, or switching
output II where YST < 0. The actuating cycle is equal to at least tc. No alarm functions.
2-step controller, “heat” A harmonic-free PDPI control algorithm regulates switching output I in order to increase /
decrease the actual value. The actuating cycle is equal to at least tc.
2-step controller, “cooling”
3-step controller
A harmonic-free PDPI control algorithm regulates switching output I in order to increase the
actual value, or switching output II in order to decrease the actual value. The actuating cycle
is equal to tc.
The dead band dbnd suppresses switching back and forth between “heating” and “cooling”
and no lasting deviation occurs.
3-step controller, water
cooling
The PWR at switching output II is adapted to the non-linear performance characteristics of a
water cooler. The actuating cycle is equal to tc.
Step-action controller
A harmonic-free PDPI control algorithm regulates switching output I or II in order to increase
or decrease the actual value. The duration of the actuating impulse is equal to tc. The dead
band dbnd is symmetric to the setpoint.
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