Since Modbus addressing has been implemented in various ways over the years, to avoid confusion in
this manual, the Modbus Holding Register addresses listed are the value in the register address field in
the message. If it is necessary to know the formal Modbus Holding Register address, simply add 40001
to the register addresses listed in the manual.
1.6.1 READ HOLDING REGISTERS (FN=3)
Note: Both Modbus registers MUST be read at the same time when reading 32-bit values.
Tx:
1.6.4 PRESET MULTIPLE REGISTERS (FN=16)
Note: Both Modbus registers MUST be written at the same time when writing 32-bit values.
Tx:
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