DeviceReadLatest
DeviceReadLatest[device] returns the most recently collected default item from a device.
DeviceReadLatest[device,n] returns a list of the n most recently collected items.
DeviceReadLatest[device,n,param] returns the n most recently collected values of param.
DeviceReadLatest[device,n,{param1,param2,…}] returns a list of the most recently collected values of the parami.
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