No, but I wanted to know that we were talking in the same "neighborhood".
Its funny you posted this as I'm working with a Turck FDN20-16XSG for the first time today and its configurable outputs work very strange, at least to me.
The manual states that i/o points self-configure to inputs or outputs depending on what you write to them in the output map. If you want an i/o point to be used as an output, PLC writes a one to the map, the point becomes an output and turns on. If a zero is written, its output circuit goes off and it can then be used as an input again. I believe the module you are using works the same. First time I've used these so it was strange.