libmodbus: libmodbus (a fast and portable Modbus library) libmodbus: libmodbus: libmodbus is a free software library to send/receive data according libmodbus: to the Modbus protocol. This library is written in C and supports libmodbus: RTU (serial) and TCP (Ethernet) communications. libmodbus: libmodbus: Homepage: http://www.libmodbus.org libmodbus: libmodbus: libmodbus: libmodbus: