PlantVisorPRO Locale graphs can display recorded log variable curves:
according to parameters indicated by the user (see chapter Device setup: logs)
according to HACCP regulations
For each device the system automatically assigns a standard graph aspect and curve color and minimum and maximum limits to each variable. The purpose of limits is to display the curve and its trend, for example, to eliminate insignificant values. If the variable takes values out of the set range, the curve is not displayed (see paragraph Off line device or out of range values)
The graph and curve aspects can be customized on two different levels:
In Device details, HACCP graph or Log graph
In Global monitoring, HACCP graph or Log graph
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Graphs set on the device level can be propagated to other identical devices. Graphs can be set on all levels (device, group and global) by a user with a certain profile, it can be propagated to users in other profiles (see chapter Setup propagation). |
A graph that groups variables to be compared can be dynamically constructed during monitoring on different levels (global, group, device).
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Monitoring level |
Log variables considered |
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Device detail, HACCP graph Device detail, Log graph |
A single device |
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<groupName>, HACCP graph <groupName>, Log graph |
All devices in a group |
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Global, HACCP graph Global, Log graph |
All system or area devices |
The created graph can be printed and kept until the next change.
Graphs represent:
Analog, Integer and Boolean variables from different devices
values samples in different periods
values with different range limits
Graphs are therefore powerful service analysis tools for Service technicians.
A failed reading or value out of range causes a "gap" in the curve [1] and is indicated by a missing sample value in the key [2].
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Failed data reading due to a device fault is always signaled by an alarm. |
See also
Displaying a HACCP or log report
PlantVisorPRO Locale 2.2.0 -
