Unihedron SQM-LU-DL, Operator'S Manual

Page: 82 / 101

8 Commands and responses
Table 8.32 – continued from previous page
Column Example value Description
22-23 Carriage return (0x0d), Line feed (0x0a).
An example response is:
Lc,11-01-06 5 11:51:00
0123456789 123456789 123
8.5.14 Get Real Time Clock version
Original DL model units used the DS1305 Real Time Clock (RTC). Newer units (starting in 2016) used the more accurate
DS3234 RTC. The results of getting the RTC version with the “
Lvx
” command is shown in table 8.33:
Table 8.33: Response of getting the RTC version
Column Example value Description
0-2
Lv,
Confirmation of command.
3
0
0=Original RTC DS1304 or unknown RTC
1=DS3234 RTC
4-5 Carriage return (0x0d), Line feed (0x0a).
An example response is:
Lv,0
012345
8.5.15 Put datalogging unit to sleep
For test purposes, the SQM-LU-DL can be put to sleep with the “
Lsx
” command so that the quiescent battery current
can be measured. The unit must be awakened by re-applying power (cold-start).
8.5.16 Gather alarm 0 data from RTC
For tests purposes, the SQM-LU-DL RTC “Alarm 0” data can be retrieved with the “
Lax
” command. The response is
shown in table 8.34:
Table 8.34: Response of getting the RTC “Alarm 0” value
Column Example value Description
0-1
La,
Confirmation of command.
3-6
000,
Address 07H, Seconds
See “
DS1305N"
+ RTC chip information for details.
7-10
128,
Address 08H, minutes.
11-14
128,
Address 09H, hours.
15-18
128,
Address 0AH, day.
19-21
001,
Address 0FH for DS1304, Control register.
Address 0EH for DS3324, Control register.
Table continued on next page ...
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Unihedron SQM-LU-DL Operator’s Manual -
20220119