Transducer Techniques SSI - Page 21

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record via USB. The minimum number of bytes per record is 8 (1
st
Value only). The
maximum number of bytes per record is 59 (all selected).
Data Items &
Values
Stored in
Memory
USB
Selection
Bytes
Memory #
Date
Time
Value 1
Value 2
Value 3
Units
Value Type
Alarms, Overload
Line Feed
Implied
Yes
Yes
Only if displayed
Only if displayed
Only if displayed
Yes
Yes
Yes
No
LoG, Digit 3
LoG, Digit 2
LoG, Digit 2
SEr_3, Digit 5
SEr_3, Digit 5
SEr_3, Digit 5
LoG, Digit 1
LoG, Digit 1
SEr_2, Digit 3
SEr_2, Digit 2
5
9
9
8
7
7
5
4
3
2
For a selected data output rate of 60/second, the maximum number bytes per record that
are allowed to achieve the specified logging rates are listed for each baud rate shown:
Baud
Rate
Maximum data bytes transmitted at specified logging rate
60/sec
55/sec
30/sec
20/sec
15/sec
12/sec
10/sec
38400
47
51
59
59
59
59
59
19200
26
26
56
59
59
59
59
9600
12
14
29
43
59
59
59
4800
15
23
30
37
47
When logging only to internal memory and not to serial communications, the above timing
constraints do not apply, and the logging rate is determined by the data output rate. Also,
the Data Items logged to memory and available for recall always include the Displayed
Value (which can be the Reading, Peak or Valley Value) plus all other non-value Data
Items.
Alternate Logging Method
In the RUN mode, continuous data can be sent at every output rate by setting SEr_2, Digit 4
to 0. The only data sent are the Values selected by SEr_3, Digit 5 and the optional alarms
and line feed.