ABB SM500F User Manual page 38

Field Mountable Videographic Recorder
SM500F
Process Alarms
Number
16 (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
8 Mb Flash memory provides storage for 2 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
4 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
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7 Specification
IM/SM500F Issue 10.1