Lighthouse Remote 3014PN - Running the Instrument Using MODBUS; AUTOMATIC Counting Mode

Lighthouse REMOTE-4PN Series Operating Manual
5-2 248083317-1 Rev 4
Note: The automatic
starting of the sampling
accommodates systems
that do not send a START
command but just polls the
instrument for its data.
To stop the sampling, send the command 10 or 12 to command register
40002.
Stopping the sampling will set the Device Status bit in Register 40003
to 0.
Running the
Instrument
Using
MODBUS
The applicable action commands are shown here in Table 5-1
Each of the described action commands above are written to the
command register (40002).
AUTOMATIC Counting Mode
In Automatic counting mode, the instrument uses the configured
sample time and hold time to record samples.
Table 5-1 Action Commands
Value Action
1 Saves all writable 4xxxx register values to the EEPROM.
3 Clears the Data Buffer. Record count is set to zero.
4 Saves the instrument parameters in the 40xxx registers to
the EEPROM. Parameters include Sample Time, Hold
Time, and Location.
7 Start Pump (flow regulated by internal setpoint).
8 Stop Pump.
9 Manual Start.
The instrument samples continuously until it receives a
Manual Stop command. Ignores local timing parameters.
Sets Sample Time for data record to equal the time
interval between the Manual Start and Manual Stop
command. Should be preceded by Start Pump command.
10 Manual Stop.
Stops sampling. Records counts since Manual Start.
Should be followed by Pump Stop command.
11 Instrument Start (Automatic Counting).
Uses defined Hold Time and Sample Time. Instrument
starts pump, executes samples and holds until an
Instrument Stop command is issued.
12 Instrument Stop.
Aborts current sample. Stops pump and data collection.