Rockwell Automation 1756-HIST2G FactoryTalk Historian ME 2.2 Installation Instructions - Manuel (Page 16)

16 FactoryTalk Historian Machine Edition Module
Publication 1756-IN106A-EN-P - March 2011
Apply Chassis Power
Check Power Supply and Module Status
Check the LED indicators and four-character LED display to determine if the
power supply and module are operating properly. Note that it can take up to
four to five minutes for the module to become fully operational once power is
applied.