Lighthouse Remote 2014P, Руководство по эксплуатации, Страница: 66 / 80

Lighthouse REMOTE 2014P, 3014P, 5014P Operating Manual
A-14 248083408-1 Rev 1
Note:
Particle data is
always a cumulative raw
count regardless of the
instrument’s settings.
The timestamp field indicates when the data record was recorded.
Timestamps are stored as the number of seconds since 1/1/1970, the
Unix time epoch. This value can be written directly into a C/C++
time_t data type to be used by ANSI C time functions.
Device Status Word (30007 - 30008)
Note:
Although
MODBUS sends 4 bytes of
status information,
Lighthouse instruments
only use the first (least
significant) byte.
The registers used for the Device Status Word are 30007 and 30008.
The bit order of the Device Status Word is 7 to 0 (right to left), where
bit 7 is the most significant bit and bit 0 is the least significant bit.
The bits within the Device Status Word are flagged to indicate
particular conditions of the currently indexed data record.
30044 IEEE Float Analog Channel 2 [low]
30045 IEEE Float Analog Channel 3 [high]
30046 IEEE Float Analog Channel 3 [low]
30047 IEEE Float Analog Channel 4 [high]
30048 IEEE Float Analog Channel 4 [low]
...
30073 unsigned int Valid analog channels [bit0=ch 1,
..., bit15=ch16]
30074 unsigned int Valid particle channels
30075 unsigned int Alarm Flags - Analog Channels
(bit 0 = channel 1 ...)
30076 unsigned int Alarm Flags - Particle Channels
Table A-13 Data Registers
Register Data Type Description