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- modbus_write_bits(3)
- ====================
- NAME
- ----
- modbus_write_bits - write many bits
- SYNOPSIS
- --------
- *int modbus_write_bits(modbus_t *'ctx', int 'addr', int 'nb', const uint8_t *'src');*
- DESCRIPTION
- -----------
- The *modbus_write_bits()* function shall write the status of the _nb_ bits
- (coils) from _src_ at the address _addr_ of the remote device. The
- _src_ array must contains bytes set to `TRUE` or `FALSE`.
- The function uses the Modbus function code 0x0F (force multiple coils).
- RETURN VALUE
- ------------
- The function shall return the number of written bits if successful. Otherwise it
- shall return -1 and set errno.
- ERRORS
- ------
- *EMBMDATA*::
- Writing too many bits
- SEE ALSO
- --------
- linkmb:modbus_read_bits[3]
- linkmb:modbus_write_bit[3]
- AUTHORS
- -------
- The libmodbus documentation was written by Stéphane Raimbault
- <stephane.raimbault@gmail.com>
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