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Reference, Installation, and Operations Manual Upgrading a Mark II to a Mark III
3-9000-743 Rev S June 2013
Inactive chords 309
C.4.8 Inactive chords
The Mark II ChordInactv (bitfield) parameter is converted to the Mark III
IsInactiveA...IsInactiveD data points as follows:
C.4.9 AlarmDef
In the Mark II, the AlarmDef parameter is used for two purposes:
• It specifies the number of consecutive batches that a chord must be failed before the
chord failure is indicated in the
DataQlty register.
• It specifies the number of consecutive batches that all active chords must be without
failure for updating the chord proportions.
The Mark III provides a separate data point for each of these purposes: AlarmDef for the first
purpose and PropUpdtBatches for the second. Since the Mark III batch update period is much
faster than that of the Mark II, the Daniel MeterLink configuration conversion feature does not
modify the Mark III AlarmDef or PropUpdtBatches data points (which should be at default
values). These points’ values can be read and modified via the Daniel MeterLink
Edit/Compare
Configuration
screen.
Table C-1 Mark II chord inactive conversion to Mark III data points
Mark II ChordInactv Mark III Data Point
Bit Position Bit Value Name Value
0
0
IsInactiveA
0 (FALSE)
11 (TRUE)
1
0
IsInactiveB
0 (FALSE)
11 (TRUE)
2
0
IsInactiveC
0 (FALSE)
11 (TRUE)
3
0
IsInactiveD
0 (FALSE)
11 (TRUE)