Operating Instructions
Trends
6
Trend View Comparison
35
Siemens Desigo™ CC Getting Started
A6V10415475_en_a_21
Building Technologies 2015-06-30
Offline Trend
Offline trends are used for the longer-term storage and retrieval of historical data to
analyze a specific process or an entire facility. Offline trend data is recorded and
stored locally, directly in the automation station.
Phase 1: Record offline trend data
Trend data is saved locally to a
Trendlog object in the automation
station.
Phase 2: Upload offline trend data
Trend data is uploaded if:
The max. buffer size is
reached.
The number of defined
entries is reached.
Manually triggered by the
management station.
6.2 Trend View Comparison
Trend View comparison allows you to compare measured values from the same
Trend View or with measured values from a second Trend View.
6.2.1 Compare View
You can link the same or another Trend View for data analysis that applies the
same X-axis for the time range to both Trend Views. The current lower Trend View
serves as the basis for the upper comparative Trend View. Any changes to the time
range in the current Trend View are reflected in the comparative Trend View.
Predefined buttons allow you to offset the comparative Trend View to the current
Trend View by the selected value.