1747-L553 [caption id="attachment_2169" align="aligncenter" width="600"] 1747-L553[/caption] The 1747-L553 is an SLC 5/05 processor belonging to the SLC 500 programmable Logic Controller (PLC) platform. The controller has the highest memory in the SLC 5/05 category at 64 KB of memory. It integrates an RS32 sub-D 9-pin connector for establishing peer-to-peer communication with a locally installed Human
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