Mitsubishi Electric MELSEC iQ-F Series User Manual page 31

■ElapsedActiveTime, TimeOfActiveTimeReset
The following figure shows the operations of ElapsedActiveTime (integrated time when the value of PresentValue is ACTIVE)
and TimeOfActiveTimeReset (date and time when ElapsedActiveTime is set to 0).
Time
PresentValue
ElapsedActiveTime
TimeOfActiveTimeReset
When the value of PresentValue status is ACTIVE, the value is integrated in the unit of the cycle (usually 50ms) in which the
BACnet function task is called from an operating system, and ElapsedActiveTime is incremented by 1 every one second.
When the value of ElapsedActiveTime exceeds the maximum value of the 32-bit unsigned integral data (FFFFFFFFH),
ElapsedActiveTime returns to 0.
Even when OutOfService is TRUE, the ElapsedActiveTime and TimeOfActiveTimeReset properties change.
When the value of ElapsedActiveTime is other than 0, the TimeOfActiveTimeReset property does not change.
■MinimumOffTime, MinimumOnTime
MinimumOffTime is the minimum time that PresentValue remains INACTIVE.
MinimumOnTime is the minimum time that PresentValue remains ACTIVE.
These settings are realized by writing the value of PresentValue to priority 6 of PriorityArray during the minimum time of
INACTIVE or ACTIVE when PresentValue changes. Therefore, when the value is written with a priority higher than 6, it will
change to that value.
Precautions
Writing to priority 6 of PresentValue of the Binary Output object and Binary Value object cannot be performed because it
causes an error (write-access-denied).
0.2 0.5
1 second
seconds seconds
50
0.3
1 second
seconds
51 52
...
Writing data from BACnet workstation
or another BACnet controller
4.2 BACnet Object Function
T
0
53
T
0
4 FUNCTIONS
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4