The Remote I/O (RIO) Scanner module, Catalog Number 1747-SN, is a remote I/O scanner for a SLC 500 PLC. It enables communication between an SLC processor (SLC 5/02 or later) and a remotely located (3,048 meters [10,000 feet] maximum) 1746 I/O chassis and other RIO (remote I/O) compatible control devices. The 1747-SN Scanner module communicates with remotely located devices using the Allen-Bradley Remote I/O link protocol. The RIO link consists of a single master (scanner) and multiple slave adapters. Communication between devices occurs over twisted pair cable with the devices daisy-chained together. The scanner can reside in any slot of the local SLC 500 chassis except for slot 0.
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. If you are not happy with your purchase for any reason, you have a full 90 days to return it for a complete refund.