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Info2 Address and size of the register or input to read. The possible forms are the
following:
•Register address. This is the most common case. Here, we nd the register
address in its classic format. Example: “40000” causes the register to be read
at address 40000.
•Register address and size. This format is used to indicate the size of the data
to be read, expressed in bytes. This format is used to read character strings for
example.
The format is the following: Register address_Size. Thus, for example, the
value “40000 10” congures a variable of which the data is at register 40000
and is 10 bytes long.
If the type is “U8” or “I8”, the “Size” information corresponds to the offset to
be applied to the register to obtain the information.
Thus, for example, for an 8-bit integer (1 byte), the value “40000_1” implies
that we want to read the 2nd byte in modbus register 40000.
•Register address, 1st bit and number of bits. This format is used to indicate
the register at which a bit eld starts and the bit eld size. Note that if the
number of bits is 1, there is no need to indicate the number of bits.
The format is the following: Register address_1st bit_Number of bits.
Thus, for example, the value “40005_4_8” congures a variable of which the
data is at register 40005 at its 4th bit and is 8 bits long.
Similarly, the value “40008_1” congures a variable of which the data is
at register 40008 at its 1st bit and of which the value is only 1 bit long
considering that the number of bits is not indicated.
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