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

       modbus_read_bits(3) modbus_write_bit(3)

AUTHORS

       The libmodbus documentation was written by Stéphane Raimbault
       <stephane.raimbault@gmail.com[1]>

NOTES

        1. stephane.raimbault@gmail.com
           mailto:stephane.raimbault@gmail.com