UNE-EN 60546-2:2010 Controllers with analogue signals for use in industrial-process control systems -- Part 2: Guidance for inspection and routine testing (Endorsed by AENOR in January of 2011.)
2011UNE-EN 60546-2:2010 Controllers with analogue signals for use in industrial-process control systems -- Part 2: Guidance for inspection and routine testing (Endorsed by AENOR in January of 2011.)