B&B Electronics WOP-2121V-N4AE - Manual - Manual (Page 375)

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PM Designer Operation Manual
12-3
CHAPTER 12 DATA COLLECTION AND HISTORIC DISPLAYS
Property Description
Timed The data logger samples data periodically at a rate specified in the Interval field. You
can specify an interval between 1 second and 65535 seconds for the Interval field.
For example, if you want the data logger to sample data every 5 seconds, specify 5
for the Interval field.
Triggered The data logger samples data once whenever the trigger bit specified in the Trigger
Bit field changes from Off to On.
Clocked The data logger samples data at fixed moments specified in the At Each field. There
are six sets of fixed moments available for the At Each field.
At Each Fixed Moments
1x Every minute at 0 second
5x The following moments of every hour: 00:00, 05:00, 10:00, 15:00,
20:00, 25:00, 30:00, 35:00, 40:00, 45:00, 50:00, 55;00
10x The following moments of every hour: 00:00, 10:00, 20:00, 30:00,
40:00, 50:00
15x The following moments of every hour: 00:00, 15:00, 30:00, 45:00
30x The following moments of every hour: 00:00, 30:00
60x Every hour on the hour
Timed
(sub-second) The data logger samples data periodically at a rate specified in the Interval field. You
can select an interval between 0.1 second and 0.9 second for the Interval field. For
example, if you want the data logger to sample data every 0.5 second, select 0.5 for
the Interval field.
The sub-second sampling requires high data acquisition performance. As there are
many factors that can affect the performance, it is not guaranteed that the specified
sampling rate can be attained.
Sampling
Method
Load from .LDF
File The data logger does not sample data. It receives the data loaded from an LDF file.
Stop Sampling Check the option if you want the data logger to stop sampling data when the logging
buffer is full.
Notify Check the option if you want the data logger to set the bit specified in the Bit field to
On when the number of collected samples exceeds the limit specified in the Full Limit
field.
Bit Available when the Notify field is checked. Specifies the bit for the sample full
notification. Click to enter an address for this field. Click to select a tag for this
field.
Sample Full
Processing
Full Limit Available when the Notify field is checked. Select a percentage as the full limit. When
the ratio of collected samples to the maximum samples specified in the Number of
Samples field exceeds the percentage, the data logger sets the bit specified in the Bit
field to On.
Clear Buffer Check this option so the data logger can be controlled to clear its logging buffer by the
trigger bit specified in the Trigger Bit field.
Trigger Bit Available when the Clear Buffer option is checked. Select a trigger bit that will control
the data logger to clear its logging buffer. The data logger clears its logging buffer
when the trigger bit changes from Off to On.
Enable
Sampling Check this option so the data logger can be enabled and disabled by the enabling bit
specified in the Enabling Bit field.
External
Control
Enabling Bit Available when the Enable Sampling option is checked. Select an enabling bit that
will enable and disable the data logger. The data logger is enabled when the enabling
bit is On.
Continued