metso automation PDP 400 maxDPU4F Series, Руководство по оборудованию

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DPU Switch Settings and Button Controls
Metso Automation
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Once takeover occurs, the now inactive DPU will “warm” (synchronize) its
database from the now active DPU. This will force the inactive DPU’s
database to match that of the active DPU. When the inactive DPU becomes
“hot”, it will automatically go active if the active DPU’s quality is
significantly below the quality of the inactive DPU.
If you wish to guarantee that an inactive DPU goes active and stays active,
you must “kill” the currently active DPU. This can be done by either
unplugging the DPU from its chassis or by writing to the “ForceFatal”
attribute of the active DPU.
Pressing the Takeover button on an active DPU has no effect.