| http://www.w3.org/ns/prov#value | - ???Many facilities also have ancillary equipment, such as compressors or chillers, which no one usually thinks to monitor or visit,??? he says. ???However, these also can be tied to micro-PLCs to show data from simple signals, such as pressure or temperature, which can indicate how well they???re operating or if they might have a problem.??? 1 of 2
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