NAME

       modbus_read_input_bits - read many input bits

SYNOPSIS

       int modbus_read_input_bits(modbus_t *ctx, int addr, int nb, uint8_t *dest);

DESCRIPTION

       The modbus_read_input_bits() function shall read the content of the nb input bits to the
       address addr of the remote device. The result of reading is stored in dest array as
       unsigned bytes (8 bits) set to TRUE or FALSE.

       You must take care to allocate enough memory to store the results in dest (at least nb *
       sizeof(uint8_t)).

       The function uses the Modbus function code 0x02 (read input status).

RETURN VALUE

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

ERRORS

       EMBMDATA
           Too many discrete inputs requested

SEE ALSO

       modbus_read_input_registers(3)

AUTHORS

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