Svantek SVAN 958A - Date and Time

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SVAN 958A User Manual
• Sample from the 3
rd
channel if CHANNEL 3 was set to ON (path: MENU / INPUT / LOGGER SETUP
/ CHANNEL 3). The sample is written on three consecutive bytes from least to most significant byte.
• Sample from the 4
th
channel if CHANNEL 4 was set to ON (path: MENU / INPUT / LOGGER SETUP
/ CHANNEL 4). The sample is written on three consecutive bytes from least to most significant byte.
• Zero byte if the samples are saved from one or three channels.
• RPM measurement result if RPM measurement (path: MENU / INPUT / AUXILIARY SETUP / RPM /
RPM) and RPM logging (path: MENU / INPUT / AUXILIARY SETUP / RPM SETUP / LOGGER: [  ]) or
(path: MENU / INPUT / LOGGER SETUP / AUXILIARY / RPM:[
 ]) are set to ON; two word are written.
B.18. DATE AND TIME
Following function written in C explains how the date and time are coded:
void ExtractDateTime(int date, int time, int dt[])
{
int sec,year;
sec = ((0xffff&time)<<1); /* time<<1; */
dt[0] = sec%60; /* sec */
dt[1] = (sec/60)%60; /* min */
dt[2] = sec/3600; /* hour */
dt[3] = date&0x1F; /* day */
dt[4] = (date>>5)&0x0F; /* month */
year = (date>>9) & 0x07F;
dt[5] = year+2000; /* year */
}