ABB SM500F User Manual page 138

SM500F
Field mountable paperless recorder
Process Alarms
Number
48 (4 per recording channel)
Types
High/Low process, latch & annunciator
Rate fast/slow
Tag
20-character tag for each alarm
Hysteresis
Programmable value and time hysteresis (1 to 9999 s)
Alarm enable
Allows alarm to be enabled/disabled via a digital input
Alarm log enable
Recording of alarm state changes in the alarm/event log can be enabled/disabled for each alarm
Acknowledgement
Via front panel keys or digital signals
Real-time Alarms
Number
4
Programmable
Day of the week, 1st of month, start and duration times
Recording to Internal Memory
Data Channels
Internal buffer memory
64 Mb Flash memory provides storage for 16 million samples
Oldest data is overwritten automatically by new data when memory is full
Data integrity checks
Checksum for each block of data samples
Independent process groups
2
No. of recording channels
6 per group
Sources
Analog inputs, MODBUS™ inputs, any digital signal, math block
Filters
Programmable for each channel to allow recording of: instantaneous values, average, max., min. and max. & min. value
over sample time
Primary/Secondary sample rates
Programmable from 0.1 s to 12 hours for each process group
Primary/Secondary sample rate selection
Via any digital signal or from password protected menu
Recording start/stop control
Via any digital signal or from password-protected menu
136
8 Specification
IM/SM500F Rev. Z