Simex multicon cmc-141, User Manual

Page: 288 / 300

User Manual For - CONTROLLER/DATA RECORDER MultiCon CMC-99/141
•
channel -HI- level,
•
channel -LO- level,
In firmware later than 2.14.2 :
•
precision — text data describing selected number precision (e.g.: 0.00 mean
two decimal digits),
part data format description
Specific log data. There can be following types of data:
– raster — holds information about samples interval,
•
Sample ID
in hexadecimal notation
(called:
R
id
),
•
raster value (in seconds) (called: R
v
),
–
timestamp
— samples synchronization markers,
•
sample ID in hexadecimal notation (called: T
id
),
•
sample time (called: T
t
),
– samples — channels measurements data. Channel order is the same as row order
in log.db_log_files :
•
sample ID in hexadecimal notation (called: S
id
),
•
floating point text representation of sample value for the first logged channel
•
…
•
floating point text representation of sample value for the N-th logged channel.
How to calculate the precise sample time
To calculate time of sample number S
id
use below procedure:
– Find R
v
and maximum R
id
where R
id
≤ S
id ,
– Find
T
t
and maximum
T
id
for
T
id
≤ S
id
,
– Calculate sample time ( S
t
) using given equation:
S
t
= T
t
+ R
v
· (S
id
– T
id
)
Detailed description of files
File main_log.bin_logs contains:
–
ID
– unique decimal number identifying log,
– GROUP_NO – number of a logged group (correspond to a device's group), starting
from 0,
– DIR – name of directory with log files., e.g. “g0_2010_08_04_13_50_39”. The name
of a directory is created according to the schema bellow:
“gX_YYYY_MM_DD_hh_mm_ss”, where:
•
X – group number,
•
YYYY
– year of log start,
•
MM
– month of log start,
•
DD – day of log start,
•
hh – hour of log start,
•
mm – minute of log start,
•
ss
– second of log start,
288