Lighthouse ApexP3, Operating Manual

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Lighthouse ApexPortable Operating Manual
A-2 248083440-1 Rev 5
Register Map
Sensor Settings Registers
Instrument settings are stored in holding registers (the 40xxx series),
which are mostly read/writable. Not all holding registers are writable.
Table A-3 describes the content of these registers.
Table A-3 Sensor Settings Registers
Register Data Type Description
40001 unsigned integer MODBUS register map version. Matches the version number
of this document. Major version digits are hundreds. Minor
version digits are tens and ones. For example, 135d = v1.35.
40002 unsigned integer Command register. Makes the counter execute a command.
See the description of this register in the table below.
40003 unsigned integer Device Status.
[bit 0=RUNNING, bit 1=SAMPLING, bit 2=NEW DATA]
40004 unsigned integer Firmware version. Major version digits are hundreds. Minor
version digits are tens and ones. For example, 235d=v2.35
40005 unsigned integer Serial Number [high]
40006 unsigned integer Serial Number [low]
40007 ASCII string Product Name char[0], char [1] (NULL terminated string)
40008 ASCII string Product Name char[2], char [3]
40009 ASCII string Product Name char[4], char [5]
40010 ASCII string Product Name char[6], char [7]
40011 ASCII string Product Name char[8], char [9]
40012 ASCII string Product Name char[10], char [11]
40013 ASCII string Product Name char[12], char [13]
40014 ASCII string Product Name char[14], char [15]
40015 ASCII string Model Name char[0], char [1] (NULL terminated string)
40016 ASCII string Model Name char[2], char [3]
40017 ASCII string Model Name char[4], char [5]
40018 ASCII string Model Name char[6], char [7]
40019 ASCII string Model Name char[8], char [9]
40020 ASCII string Model Name char[10], char [11]