wtw DIQ/S 182-PR, System Operating Manual

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System 182 Overview
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1.2 Behavior of the system in the case of power failure

The system configuration remains stored permanently. It consists of
the following settings:
– Sensor settings
– Settings and links of relay outputs
– PROFIBUS settings
– System settings (display language, air pressure/location altitude,
passwords, etc.)

Linked relay outputs switch to the non-active condition (open).

When the power is restored the system is automatically restarted.
The system continues to work with the settings at the time of the
power failure (except for the time).