User guide

LBA-USB User Guide Document No: 11294 Page 27
How fast will logging operate?
The rate at which frames can be processed and logged to a file depends upon
such variables as the:
 Quantity and types of calculations being performed
 Type of logging enabled
 Speed of your disk drive and computer system, etc.
We recommend running tests to determine how fast your system can log various
forms of data and results, and then using this information as your system
benchmarks.
2.1.12 Implications of Combining Logging, Statistics,
Post Processing and Block Capture
Note: Before applying the concepts in this topic become familiar with the operating
modes available for:
• Results Logging - Section 2.1.11
• Statistics Results – Statistics paragraph in Section 2.2.7
• Post Processing – Processing paragraphs in Section 2.2.4
• Block Capture - Section 2.2.4
The Logging, Statistics, Post Processing and Block Capture features each contain
built in controls that can limit their respective run lengths. Operator intervention,
a programmed number of frames, or a programmed time limit may introduce
these limiting factors.
Note: Post Processing and Block Capture do not allow for a programmed time limit.
In addition, Post Processing and Block Capture are mutually exclusive.
Due to the flexibility in setting control options, it is possible to set conflicting
control parameters. Therefore, it is essential that these various conflicts be
resolved by a prioritized control scheme.
Certainly a perceptive operator can avoid all of these possible conflicts;
nevertheless, owing to the complexity of these features, setup errors almost
always occur.
Therefore, to avoid a conflict in the above features, never set more than one
of the above to use either a Time limit or a Frame count, at any one
time.
Using Logging, Statistics and Block Mode in
Combination
The following control priorities are in effect when any of the above features are
used in combination. The first enabled feature in the list has control.
1. Block Mode – Controlled by a set number of frames.
2. Data or Results Logging – Controlled by a set time limit.
3. Data or Results Logging – Controlled by a set number of frames.
4. Statistics Results – Controlled by a set time limit.