modbus_write_bits - write many bits

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

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

       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).

EMBMDATA
           Writing too many bits

       modbus_write_bits - write many bits

       The function shall return the number of written bits if successful. Otherwise it shall return -1 and set
       errno.

modbus_read_bits(3) modbus_write_bit(3)

intmodbus_write_bits(modbus_t*ctx,intaddr,intnb,constuint8_t*src);