SOLAR controls WATTrouter Mx series User Manual page 45

WATTrouter Mx - user manual
may be even the inverter itself. In this case, the controller displays small amounts of positive active
power in either phase wire. Reason for this is significant reactive power, which is drawn by those
devices and measured by WATTrouter near the "recognition line" between production and
consumption. Also watt meters produced by different manufacturers behave in similar way. This item
partially tries to resolve this issue by setting additional offset valid for each phase wire.
For example, if the production limit equals to 0.05 kW, CombiWATT mode will already be initiated
(provided that also other requirements for the initiation of this mode are met), even if the surplus falls
below 0.05 kilowatt in each phase.

CombiWATT – Energy counter reset – this field is used to reset energy counters, i.e. the "Supplied
energy" fields in the main window. You have two options:
a) At sunrise: counters are reset if the time equals the sunrise time valid for this day.
b) At fixed time: counters are reset if the time is the same as the time set in the field called "Fixed
time for energy reset".

Fixed time of energy reset – it specifies a fixed time for energy counter reset mode according to fixed
time (the previous paragraph, mode b).
Geographic location:

Latitude - enter the latitude (in degrees) here. The value is used to calculate the sunrise time and
therefore, values specified in degrees are precise enough.

Longitude - enter the longitude (in degrees) here. The value is used to calculate the sunrise time and
therefore, values specified in degrees are precise enough.
Tip: By changing the longitude you may modify the sunrise time in order to reset energy counters according
to your preferences, for example, based on how large area is covered by shadow, etc. If you are not sure, do
not modify these values. The default geographic location is set to Central Europe (CZ).
Other settings:

Language - select the language which you want the WATTconfig software to use after restart. The
Custom item may be used for any other, still not supported language. If you want to use this option,
you have to manually translate strings in the custom.xml file into the language you want to use.

Reset unit on config. write - check this field if you want to restart the controller after each
configuration was written. Controller reset is necessary to change the network settings and also to
delete daily energy counters, etc.

Default tab - Set the tab you wish to appear when you launch the WATTconfig program or web
interface. For WATTconfig software this setting is stored on PC hard drive, the same settings in the
web interface is stored directly in the controller.
Authorization settings:

Require better HTTP security – check this to disallow passing plain text username and password in
HTTP/XML requests (see chapter Description of web interface and XML communication). If checked
the authorization will be made using a hash (XML node <sig> replaces here the nodes <UN> and <UP>)
and username/ password cannot be changed using web interface anymore (nodes <UNn> and <UNp>
cannot be used). If you use a superior system to modify the device configuration this option must be
left unchecked because you will not be able to generate the hash there.

New username - write a new username to authorize writing data to the controller via Ethernet
interface.
How to fit and setup the device Page 45 from 82