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- modbus_read_input_bits(3)
- =========================
- 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
- --------
- linkmb:modbus_read_input_registers[3]
- AUTHORS
- -------
- The libmodbus documentation was written by Stéphane Raimbault
- <stephane.raimbault@gmail.com>
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