modbus_write_register - write a single register

       The libmodbus documentation was written by Stéphane Raimbault <stephane.raimbault@gmail.com>

libmodbus v3.1.6                                   12/09/2019                            MODBUS_WRITE_REGISTE(3)

       The modbus_write_register() function shall write the value of value holding registers at the address addr
       of the remote device.

       The function uses the Modbus function code 0x06 (preset single register).

       modbus_write_register - write a single register

       The function shall return 1 if successful. Otherwise it shall return -1 and set errno.

modbus_read_registers(3) modbus_write_registers(3)

intmodbus_write_register(modbus_t*ctx,intaddr,constuint16_tvalue);