hello,

I have to use ET200SP and I have a doubt about base units.

There are modules type BU...D (light color) and BU...B (dark color). My question is:

is it possible to use all module BU...B (without any BU...D in the first position)????

Thank you for any help

Best Regards

hi mindware,

it is not possible to project it.

The first one is always a light one. 

By studying the manual I found an Exception:

regards,