S800 I/O Module 'addressing'
We are providing a preliminary design for an S800 expansion I/O panel. The station module is a CI810B FCI. My question is how the attached modules are numbered. Do they start with 0, or 1. We would like to mimic the module number on our terminal numbering and it will cause much confusion if We 0 index the terminals and the modules are 1 indexed.
So the short. If I attach the first MTU to a CI810B, would it be called MTU 1 or MTU 0?