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Statistical monitoring procedure

The statistical monitoring procedure learns everything automatically just like the fully automatic procedure. In addition, the limits are defined by the system determining the statistical limit distances per time in the process. In the event of signal noise, the limits adapt accordingly.

 

Configuring the statistical monitoring procedure

Configurable parameters

 

Function name

Description

Activate offset compensation

The "Activate offset compensation" point can only be selected if the checkmark next to "Compensate signal offset" is set under
"Service / Settings / Monitoring / Channel 1". If this function is activated, the respective signal is set to zero when measuring starts. This is helpful when there is a fluctuating base load, as false alarms are avoided.

Deactivate tolerance ranges

If this function is activated, the green tolerance ranges are hidden. This is useful if you have redefined your monitoring under Maximum value / Wear limit / Missing limit.

Distance to upper limit

 

This value specifies the distance between the upper limit of the tolerance range in the Y direction and the signal. The value always relates to the distance that the monitoring would set by itself. A value of "1" causes the automatically calculated value to be applied exactly. Larger values increase the distance. Smaller values reduce it.

Distance to lower limit

This value specifies the distance between the lower limit of the tolerance range in the Y direction and the signal. The value always relates to the distance that the monitoring would set by itself. A value of "1" causes the automatically calculated value to be applied exactly. Larger values increase the distance. Smaller values reduce it.

Delay time after the start of the process [s] / Delay time before the end of the process [s]

These values specify the time range after the start or before the end of the process during which the monitoring should not calculate any limits. If both values in this field are set to "0.0", both parameters are ignored.

Safety distance from the signal in the X direction [s]

 

This value specifies the distance between the limits and the signal in the X direction.

Learning speed

This value specifies how quickly the ToolScope relearns processes. A value of 1 corresponds to the standard speed. Higher values accelerate the learning speed. Lower values slow it down.

Relearn; number of processes

As soon as the checkmark is set next to "Relearn; number of processes" and the process is observed the next time, the monitoring forgets the previous data and relearns the newly entered number of processes.