mbserialslave is a modbus rtu slave object based on mbulib. the 4 major commands can be used with mbserialslave:

• write single register
• write multiple register
• read holding registers
• read input registers

This code has been tested on linux ( ubuntu and raspbian ).

An example made with lazarus is in the example directory.

A minimal implementation of this object can be found in the simplertuslave example.