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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 _modbus_write_bits()_ 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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