Transducer Techniques SSI User Manual

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6. Data Logging
Readings and associated data items can be logged to either internal memory only, to
USB only, or to both simultaneously. Single-record logging can be achieved with a short
push of the LOG key. Continuous logging can be initiated by holding down the LOG key
until an audible signal is heard (approximately 2 seconds).
Logging to Internal Memory
For each logged record, all of the non-Value data items are stored in memory plus the
Displayed Value, which might be either the Reading, Peak, Valley or First Peak value as
selected by the user. The second table below lists all of the data items. If Memory Protect
is enabled, any attempt to log to a selected memory location containing data will be
redirected to the next location following the highest location written. If Memory Protect is
disabled, any selected memory location can be overwritten.
Logging to USB
For more detailed information, download the SSI Serial Communications Manual from the
www.transducertechniques.com website.
For each logged record, only the selected data items are transmitted via USB. All of the
non-Value data items are optional, but the Value selection made from the menu item
SEr_3, Digit 5 as shown below is always included.
Ser_3, Digit 5
Value 1
Value 2
Value 3
0
1
2
3
4
5
6
Reading
Peak
Valley
Reading
Reading
Reading
Displayed
Peak
Valley
Peak
Valley
Logging Rate
When logging only to internal memory, the continuous logging rate is determined by the
data output rate, SEr_1, Digit 5. When logging only to USB or to both internal memory
and USB, the logging rate is determined by three factors:
1. The data output rate setting (SEr_1, Digit 5).
2. The baud rate (SEr_1, Digit 4).
3. The number of data bytes to be transmitted per record via USB (see table below).
For example, when the data output rate is selected to be 60/second, the actual logging
rate may be less depending on the baud rate and number of data bytes per record. When
the data output rate is 3.8/second or slower and the baud rate is 2400 or higher, the
number of data bytes per record does not affect the output rate.
Up to 3 Values, 6 data items and a line feed can be individually selected to be included in
the data stream, each adding to the total number of data bytes to be transmitted per

Transducer Techniques SSI Specifications

General

Brand	Transducer Techniques
Model	SSI
Category	Measuring Instruments
Language	English