wtw MIQ/T2020 PLUS, Operating Manual

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IQ S
ENSOR
N
ET
MIQ/T2020 PLUS Operation
4 - 11
Operation of the
MIQ/T2020 PLUS
controller (simplified)
Fig. 4-8 Taking over the controller functions
Controller operation
Terminal operation
IQ Sensor Net
main controller
MIQ/T2020 PLUS
Regular
controller operation
Regular
terminal operation
Regular
controller operation
Regular
terminal operation
Saving
of the system
configuration
every 60 min
Saving of
system
configuration
every 60 min
from now on
If settings are
different:
Retransfer of
system
configuration
(Confirmation
by operator
required)
2 min waiting time
MIQ/T2020 PLUS
takes over
Main controller
takes over
(Repair or
exchange of
main controller)
?
! Malfunction: failure of main controller
Reconnection of a main controller
Search for
active main
controller
(ongoing)
Time axis
Time axis
60 min
Terminal and
controller operation