ABB DCS 500B Description page 196

DCS500 Pin and Parameter list
OPERATING_HOURS
Signal of FAULT HANDLING function block ( S16/16 )
Operating hours in 0.1 h resolution.
Counter is usually reset if auxiliary power of the control board is switched off for more than
8 hours and the contents of non-volatile memory is lost.
11109 S: U4 SC: 0.1 HL: - LL: - D: - U: -
A 92