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UF3300 Modbus
register contents when reading and the MBM may also manipulate the
same parameters.
The Regime register is the only updateable register that is solely owned
the MBM. The regime chosen only effects Modbus register values and
has no influence on the unit's measurement settings. The Regime can
be changed by simply performing a write to the Regime register. Only
the bottom five bits will be considered. Four regimes are valid: Metric1,
Imperial, US Imperial and Imperial2. Each regime has a default set of
units for each quantity reported. The default unit can be seen in the
Notes column for the respective regime and register, and more
concisely, in Table 4, más adelante. Note that a measurement regime
of 4 and above will be set the regime back to 0 (Metric1), the default
regime. The Regime register may be set using either the Mask Write
Register or Write Single Register command. The regime register may
also be read by the MBM. The regime set by the MBM will only stay set
until the unit is restarted. To ensure the Modbus regime is always
restored after a reset, the regime needs to be saved. This is
accomplished using the Save Measurement Regime bit (bit 3) of the
Instrument Control Flags register (register 6, offset 5). The procedure
for doing this is outlined in the ensuing paragraphs.
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