I have a project to add a Micrologix 1200 to an existing SLC 5/03. I have created a DH485 network using a 1747-AIC for the SLC end, and an AIC+ for the ML 1200 end. There is also a PV600 connected at the SLC end. The SLC I/O is 120vac and the ML1200 is 24VDC. At the initial installation ice...