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3.8 Power Failure Memory
Function
The power supply to the system fails unexpect-
edly during operation. When the system is
powered on again, the wired controller
continues to operate according to the status
before the last power failure, including the
power-on/off status, mode, set temperature,
failure, protection, wired controller address,
timer, hysteresis, etc. However, the memorized
content must be the content set at least 7s
before the power failure.
3.9 Parallel Function of Wired
Controller
1) A maximum of 16 wired controllers can be
connected in parallel, and the address can be
set in the range of 0 to 15.
2) After wired controllers are connected in
parallel, wired controllers with the same
address are not allowed on the bus;
otherwise a communication failure will occur.
3) After multiple wired controllers are connected
in parallel, data is shared among them, e.g.,
the power-on/off function, data settings (such
as the water temperature and hysteresis) and
other parameters will be kept consistent
(note:
The
mode,
hysteresis settings can be shared only when
the system is powered on).
temperature,
and
25
4) Start point of data sharing: After the
power-on/off button is pressed, data can be
shared during parameter adjustment. The
"OK"
button
must
parameters are adjusted, and the finally
adjusted values will be shared.
5) Since the bus is processed in the polling
mode, the data of the wired controller with the
minimum number is valid if multiple wired
controllers are operated at the same time in
the same bus cycle (4s). Avoid the above
situation during operation.
6) After any of parallel wired controllers has
been reset, the address of this wired
controller is 0 by default.
3.10 Upper Computer
Communication Function
(Reserved)
1) The home page displays the content below
during communication with the upper
computer: Communication between the wired
controller and the upper computer.
2) If the outdoor main control board is in the
remote ON/OFF control mode and the wired
controller sends an alarm, the current alarm
page displays: Remote ON/OFF Control
Mode. In this case, the network control of
upper computer is invalid, and the wired
controller can query the system status only
and cannot send out control information.
be
pressed
after
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