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Hi All, I am working on a project that is due to be commisioned in the next few weeks. It has a SLC 5/04 and a Panelview 900 with RIO. It is unclear to me how the Block transfers to and from the Panelview work. I would like to transfer all of my physical I/O points to the panelview. My first two cards have multiple words, one is the RIO scanner and then I have two analog cards with four words each. I setup a block transfer to the Panelview for x number of words. The panelview is told how many words to receive and the starting PLC address. Does the Panelview then assume that I am sending contiguous addresses and assign PLC addresses to them in order. How can I send multiword I/O? Do I have to copy the I/O images to another file before sending? I was hoping to not duplicate all of the addresses and tags. Also, I noticed that I cannot have two block transfers of the same size in the panelview. Is this how the panelview distinguishes between the different transfers? I am planning to use about six block transfers to pass various segments of my PLC memory to the panelview. I recognize that this is less efficient than one big transfer. Will it be so slow that it becomes useless? Is it easier to just move all of my data to a contiguous transfer area before I send it? What works best? I am trying to keep this as easy as possible with no duplicated tag entries or cross references from many files to one. Thanks, Bill Sturm