Siemens SITRANS LR250 Operating Instructions Manual page 122

Remote operation
7.1 Operating via AMS Device Manager
Note
Acknowledging a maintenance reminder from the device (see Acknowledge (4.2.9.), (4.3.9.),
(4.4.9.), (4.5.9.) will not set the Block Alarm to Acknowledged in AMS. The maintenance
alarm will cause an FF block alert, and the block alert can only be acknowledged via a
remote host such as NI-FBUS Configurator or AMS Device Manager (as in step 3 above).
122
SITRANS LR250 (FOUNDATION FIELDBUS)
Operating Instructions, 08/2014, A5E32221411-AC