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8.2.6.2.2.2.2.9. Alarm LoLo
Function
- Defines
LoLo
alarm level in engineering units for analogue
input signal.
Data type
- number
Range
- 0....65535 [engineering units]
Default
value
- 0 [engineering units]
Comments
- Sets
An LoLo
flag used for rules processing. The reset level for
this flag depends on Alarm hysteresis value.
8.2.6.2.2.2.2.10. Alarm hysteresis
Function
- Defines hysteresis for analogue input alarm thresholds. The
value is in engineering units.
Data type
- number
Range
- 1....65535 [engineering units]
Default
value
- 10 [engineering units]
Comments
- setting proper hysteresis value for variable signal source
prevents frequent activation of alarm flag when signal source
is unstable.
8.2.6.2.2.2.2.11. Dead band
Function
- Defines size of dead band for values of analogue input in
engineering units.
Data type
- number
Range
- 0....65534 [engineering units]
Default
value
- 10 [engineering units]
Comments
- Insensitivity band spans symmetrically with last recorded
value in center. Upon crossing this value, the new value is
recorded and insensitivity band is moved. The
An DB
flag in
binary inputs space is raised and may be used for rules
processing.
8.2.6.2.2.2.3. Counter inputs
8.2.6.2.2.2.3.1. Counting direction
Function
- defines counting direction
Data type
- selection list
Range
-
Up
A pulse on input increases value of counter register
Down
A pulse on input decreases value of counter register
Default
value
-
Up
Comments
- The counting process is valid only within range of Counting
range parameter.
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