Lighthouse REMOTE Liquid Particle Counter (MODBUS Output) Operating Manual
6-6
248083227-1 Rev 8
Configuration
Commands
General
The general form of a Configuration Command is
AA
d
[CRLF]
WARNING:
The MR
Protocol is case
sensitive. Using the
incorrect case will
produce undesirable
results.
where:
•
AA
is the command field and is always capitalized.
•
d
represents an argument, which may be numeric or a string,
depending on the command. The argument immediately
follows the command, with no space between them.
•
[
CRLF
]
means carriage return and line feed.
Note:
Unless Hyper
terminal is configured to
send line ends with line
feeds, pressing the
ENTER key sends only a
carriage return. The
configuration commands
will wait for a Line Feed
before returning a
response.
Set Alarm Limit (WA)
The Alarm Limit controls the value of the Alarm bit in the Status byte
at the beginning of each record. If the number of counts in the smallest
particle size reaches this value, the alarm bit will be set.
Command:
WA
d
[
CRLF
]
{Where
d
is a
numeric
value from 1 to 999999.}
Response:
WA
d
[crlf]
{Echoing the command and the current setting}
or, if value is invalid, just a single
?
will be sent.
Query value by typing:
WA[CRLF]
Response:
WA
d
[crlf]
{Where
d
is the current alarm threshold}
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