Lighthouse REMOTE Liquid Particle Counter (MODBUS Output) Operating Manual
A-8
248083227-1 Rev 8
Data Record
Commands
The Data Record Commands are used to transfer count data from the
particle counter to the computer and to control the instrument’s buffer
memory. See Table A-7.
The syntax for the Data Record commands is a single capital letter with
no arguments.
Table A-7 Data Record Commands
COMMAND
RESPONSE
DESCRIPTION
A
A[data record][CRLF]
or
A#
Send Buffered Record:
Sends the
next record in its Rotating Buffer
followed by a carriage return and
line feed. The record is erased
from the buffer as it is sent.
A#
indicates the buffer is empty
and is not followed by [CRLF].
B
B[data record][CRLF]
or
B#
Send Current Record:
Sends the
data record of the most recent
sample interval in the Rotating
Buffer. The record is NOT erased
from the buffer.
B#
indicates that the buffer is
empty and is not followed by
[CRLF].
C
(no response)
Clear Buffer:
Erases all records
from the Rotating Buffer.
D
D
n
[CRLF]
or
D0[CRLF]
Number of Records:
Returns
n
which is the number of records in
the Rotating Buffer. The buffer
will hold up to 1 record followed
by a [CRLF].
D0
indicates that the buffer is
empty; this is followed by a
[CRLF].
R
R[retransmits last
record sent][CRLF]
or
R#
Retransmit Record:
Sends the
last record that was transmitted
followed by a carriage return and
line feed. The record is not erased
from the buffer.
R#
indicates that the buffer is
empty and there is no record to
transmit.
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