[question] start addresses are 0?

[Gwanyoung-K]

Hi I'm newbie.

Example of modbus_mapping_new function as follws.
/* The first value of each array is accessible from the 0 address. */
mb_mapping = modbus_mapping_new(
BITS_ADDRESS + BITS_NB,
INPUT_BITS_ADDRESS + INPUT_BITS_NB,
REGISTERS_ADDRESS + REGISTERS_NB,
INPUT_REGISTERS_ADDRESS + INPUT_REGISTERS_NB
);
if (mb_mapping == NULL) {
fprintf(
stderr, "Failed to allocate the mapping: %s\n",
modbus_strerror(errno)
);
modbus_free(ctx);
return -1;
}

And description.
This function is equivalent to a call of the modbus_mapping_new_start_address function with all start addresses to 0.

So, if REGISTERS_ADDRESS is 20, BITS_NB is 10, should client access to 30 ~ 39?

Best regards.