ML-x17 DATA LOGGER MANUAL
Manufacturers of low power instruments
page 112
4.44.1.3
Time-record
Bit 7
6
5
4
3
2
1
0
Type of record=0
Sign
Single byte
Scaling value
When the most significant nibble of the first record byte equals 0, then the record specifies a change in
timestamp for all following value records.
Bit 0 & 1 indicates the scaling of the
“Time”-record: 00= Day, 01=Hour, 10=Minute and 11=Second.
Bit 2, When this bit is set to “1” it indicates that there are no “Number”-bytes following this record, the
record exists out of just one byte where the value equals to the scaling value (e.g. 1 day). When this bit is
set to “0” the delta time is given by the value constructed from the following “Number”-bytes.
Bit 3 is the sign bit and when set to
“1” it indicates that the time difference given in this record should be
subtracted from the current timestamp and when “0” added to it.
4.44.1.4
Value-record
Bit 7
6
5
4
3
2
1
0
Parameter number (1 to 15)
Sign
Scaling value
When the most significant nibble of the first record byte is unequal to 0, then the record is about a value
measured at the current timestamp of a parameter with the specified number.
Note
: a “Value”-record has at least one following “Number”-byte.
Bit 0,1 and 2 is a 3 bits scaling value (a value between 0 to 7). To get the real number, the integer
number,
constructed from the following “Number”-bytes, should be divided by 10 to the power of the
scaling value. (e.g. 1= divide by 10, 2=divide by 1000).
Bit 3 is the sign bit and when set to “1” it indicates that the given delta value in this record should be
subtracted from the current parameter value
and when “0” added to it.
