Mitsubishi TCP SLMP Writing Bad_NotSupported

Hi!

I've successfully connected to a Mitsubishi PLC (FX5U) with IQ-F in Ignition. I can read the tags but i can only seem to write to words. When i try to write to a bool/bit i get "Bad_NotSupported: The requested operation is not supported."

Could i have missed something here?


I found my own answer:

Optional Bit Index

Bit indexing can be specified on any integer data type to retrieve a boolean value at a bit position. Addresses with a bit index are read-only and any attempts to write to them will result in a Bad_NotSupported error due to the MELSEC protocol.

A bit index cannot be specified for the following:

Non-integer data types (bool, float, double, and string)
Non-scalar addresses (arrays)