modbus_read_input_registers - read many input registers

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

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

       The modbus_read_input_registers() function shall read the content of the nb input registers to address
       addr of the remote device. The result of the reading is stored in dest array as word values (16 bits).

       You must take care to allocate enough memory to store the results in dest (at least nb *
       sizeof(uint16_t)).

       The function uses the Modbus function code 0x04 (read input registers). The holding registers and input
       registers have different historical meaning, but nowadays it’s more common to use holding registers only.

EMBMDATA
           Too many bits requested

       modbus_read_input_registers - read many input registers

       The function shall return the number of read input registers if successful. Otherwise it shall return -1
       and set errno.

modbus_read_input_bits(3) modbus_write_register(3) modbus_write_registers(3)

intmodbus_read_input_registers(modbus_t*ctx,intaddr,intnb,uint16_t*dest);