I have a client who has a system that includes qty 3 of AB SLC 5/04, one Panelview 1000 and a PC connected to one of the SLC 5/04s via DF1 port and doing logging. Client would like to upgrade this system but it controls plant refrigeration and it is not possible to shut it down for any length of time. I am thinking of adding the ANC-100e to get the DH+ onto Ethernet. Then I would replace the data collection PC first by collecting the data to a server via DH+ to Ethernet, then replace the Panelview 1000 with screens on the new PC platform via Ethernet then finally migrate the functionality out of the SLC’s step by step. Once it is done I will just have the new system on Ethernet and no longer require the ANC-100e.