AggreGate Community

Hello all,

In the text (Aggregate Documentation 5.31.15, page=185) :
the Holding registers described as Read-Only registers, and
the Input Registers described as Read/Write registers.

In the Modbus protocol (see modbus.org specification)
this is quite the opposite :
Holding registers : Read/Write,
Input registers : Read only

My question is if the software treats the modbus registers in the way the manual describes,
or the way the modbus protocol defines them (so it is only a mistyping).

Please clarify.

Nikolas

Hi Nikolas,

Thank you for this notice.

My question is if the software treats the modbus registers in the way the manual describes,
or the way the modbus protocol defines them (so it is only a mistyping).

I'm sorry for this mistypes. Of course second variant is correct.
We fix our documentation soon.

BR/Anton
Tibbo Systems

In standard Modbus Protocol, the following stands true,
Holding registers (Address 40001,40002 etc) = R/W (Function Code use to Read 3)
Input registers (Address 30001,30002 etc) = R (Function Code use to Read 4)

I hope this helps.