Solartron Mobrey 3595 4C, User Manual

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3595 4C User Manual Part Two Results and Error Formats
35952350 (CH02/AA)
2-11
2.6.3 Time-tag format
The time-tag contains an indication of whether the following data is a scan or a single measurement, the
channel number, and the calendar seconds and milliseconds. It has the following format:
1 0 M X
4
..... X
0
S
7
...... S
0
R
7
...... R
0
P
7
...... P
4
0 0 0
most significant bit of first byte
First Byte Fourth Byte
M if M = 0, a single measurement follows the time-tag
if M = 1, a scan follows the time-tag
C
4
…C
0
channel number (in binary). Not used if M = 1 (a scan)
All remaining numbers are in binary-coded decimal:
S
7
…S
4
seconds, tens
S
3
…S
0
seconds, units
R
4
…R
7
milliseconds, hundreds
R
3
…R
0
milliseconds, tens
P
7
…P
4
milliseconds, units
2.6.4 End-tag format
An end-tag in historical data indicates that there is no more data following it in the data page. The format is
as follows:
0 0 0 0 0 0 0 0 X
7
...... X
0
X
7
...... X
0
most significant bit of first byte
First Byte Fourth Byte
X
7
...... X
0
Note that the end-tag does not imply that there is no more historical data to extract; it does imply that the
last piece of useful data has been read from the data page.