NOVUS AUTOMATION
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To streamline the digital channel configuration in "Pulse Count" mode and the conversion to flow in the unit required,
LogBox Wi-Fi
provides the
following units
of measure:
Flow Units
Sensor Units
l/s,
l/min,
l/h,
gal/s,
gal/min,
gal/h,
m³/s,
m³/min,
m³/h.
pulses/l,
pulses/gal,
pulses/m³.
Table 4 –
Measure
Units
If you use one of these flow and sensor units, you only need to inform the "Sensor Factor" parameter. If none of the units available is required, you
need to calculate the "User Factor", relating it to the "User Unit" parameter, and fill in the parameter so that
LogBox Wi-Fi
can correctly convert the
pulses to the unit required. In this case,
LogBox Wi-Fi
will
convert the pulses to the user unit as follows:
●
User Value = ((Count) / (Sensor Factor)) * (Unit Factor)
○
It is not necessary to consider the log interval for calculations.
Figure 2 –
Digital Input
If the user wants to visualize the production of pieces in "pieces per minute", for example, and the application has a sensor of the type PNP that,
every 30 pulses in the rising edge, computes the produced piece, the following parameters must be configured on the digital input of the device:
•
Input Type:
Pulse Count.
•
Sensor Type:
PNP.
•
Counting Edge:
Rising.
•
Application:
Flow Rate.
•
Sensor Factor:
30 (pulses/piece).
It is necessary to select the "Average Flow by Acquisition Interval" option and, after that, fill in the following parameters:
•
Unit:
Custom.
•
Unit Factor:
60
(conversion of pieces per second to pieces per minute).
It is also possible to select the "Volume Since Last Reset" option and, after that, fill in the following parameters:
•
Unit:
Custom.
•
User Factor:
1 (storage the accumulated number of pieces).
Thus,
LogBox Wi-Fi
will log, in each log interval, the number of pulses occurring within that period, and every time the data is displayed, it will turn
those pulses into the number of pieces produced per minute (custom unit of the user).
In the same example, let us say that the log interval is 20 seconds. Thus, if the sensor gives 20 pulses per second, the
LogBox Wi-Fi
will register
400 pulses per range, displaying to the user 40 pieces per minute (((20 pulses/s)/(30 pulses/piece)) * 60 (1 min) = 40).
5.2.2
EVENT LOG
If the digital input is configured in the "Event Log" mode, each selected edge will create a log in memory, informing the event and the instant that it
occurred. This log will not be synchronized with the periodic logs but will respect the logs beginning and end modes. Events will be logged after the
end of the
debounce
time set and will be logged with the
debounce
time delay.
LogBox Wi-Fi
can log up to 10 events within 1 second.
