Ne ewsl ette r Alarm S Setting 3. 4 Button of Sound Set tting is now available in n DOP-W se eries HMI DO OP-W127B B and DOP- 157B series s HMIs have e built-in fu nction of 1.5 5 watt audio o output. Th his newly a dded functi on allows u users to con ntrol the exte ernal and in nternal audi o output sw witch respec ctively. Be bu utton, users efore that, u s can directl users have to go to sys y adjust the e volume on stem directo n the edit sc ory to adjus st the volum creen. e. Now, wit th the Soun d Setting 50/61