Help from Sensor Factory sensor ?

Hello,

I'm afraid there's currently no video-tutorial on that subject. But to create a sensor that aggregates data/values from several sensors, the Sensor Factory Sensor is the solution:

Once you've added the corresponding devices and sensor's for each of the devices, you can create a Factory Sensor sensor, which can aggregate and perform calculations based on available sensor data based on a channel definition syntax.

The Channel definition will be based on the Sensor's ID (Highlighted in yellow, top-right corner) and the Channel Numbers (or ID) (center-bottom, highlighted in red) that can be seen within the source Sensor's overview:

Full-resolution Image

Examples Based on the Image Above

Subtraction of Channels

Create a Sensor Factory Sensor to display the "Free Virtual Memory" minus the "Free Physical Memory" and calling it "Channel Subtraction":

#1: Channel Subtraction
Channel(1002,1) - Channel(1002,3)

Sum of Channels

Create a Sensor Factory Sensor to display the sum of the "Free Page File Memory", "Free Physical Memory" and "Free Virtual Memory" (from the image above) and calling it "Sum of memory Channels".

#1: Sum of memory Channels
Channel(1002,2) + Channel(1002,3) + Channel(1002,1)

Display/Combine Channels

Create a Sensor Factory Sensor to display/combine the individual channels "Health" and "CPU Load" with distinct names on a new multi-channel sensor. This is useful when you want a graph that will show you the utilization of various devices within a same channel to compare resource utilization at various servers for example.

#1: Factory CPU Load
Channel(1002,5)

#2: Factory Health
Channel(1002,0)

Add a "Line" to a Graph

Create a Sensor Factory Sensor to display the total traffic from a traffic sensor but additionally display a "limit line" (useful in maps). The color and thickness of the line can be adjusted in the Channel's settings after it's creation.

#1: Total Bandwidth
channel(2120,-1)

#2: Line at 2 Mbit/s [kbit/s]
2000

Notes

1. You're not restricted to a single source sensor, using different ID's you can use up to 50 different source sensors/channels.
2. You can combine any of the above in a Sensor Factory Sensor, please see the Manual page for further syntax details.

Best regards,