Schneider Electric Xantrex XW Instrukcja Użytkownika Pobierz pdf (Strona 21)

Software Release Notes

975-0604-01-01 Revision A 21

2. Improvements were made to the Xantrex Xanbus library to make the device

more robust on the CAN network in the presence of network errors. The unit no

longer resets itself at midnight, which was a temporary fix to the problem of

corrupted network communications. It will now detect any network corruption

and perform a soft reset of the Xantrex Xanbus functionality only, if a

corruption occurs.

3. A new feature was added to provide float time information to the user. Two new

home/status screens are available when the unit is either in Float or not

charging. One screen shows the time that the unit last entered float at, and the

other screen shows the duration of time that the unit spent in float that day.

These new screens will scroll if scrolling is enabled. The screens are hidden if

the charger is in Bulk, Absorption, or Equalize as the information would not be

relevant.

4. A simple fix (component value change) was made for the BTS to improve the

measurement circuits' immunity to switching noise on the DSP control board.

This minor hardware change allows us to set the minimum BTS temperature

reading to -35degC (previously we limited it to -20degC). Temperatures below

this threshold are interpreted as BTS Not Connected, and the value inserted

into the Temp field of the BattSts2 PGN on Xantrex Xanbus will be "reserved".

The minimum temperature threshold is now dependent on the hardware

version of the DSP control board. Currently, the control board is being shipped

at Rev 3. The boards version will be rev'd to version 4 (by modifying a voltage

divider circuit sampled by the ADC), so the -35degC limit will apply to version

4, and the old limit of -20degC will still apply if the hardware is rev 3 or older.

5. A minor bug was found where if the LocalOffsetMinutes field in the

DateTimeSts PGN was set to an invalid value (ie. PGN_SI_NO_DATA), this

offset still got applied when converting UTC time to local time. This invalid

value scenario should not occur normally, but if it does, this new firmware

build will ignore that field and set local time equal to the reported UTC time. It

ensures that the local offset is within +/- 12 hours (or +/- 720 minutes) before

applying it to the local time value.

6. The reset to factory default feature was triggering a bug that caused some

memory locations to be corrupted as they were over written due to an array

operation that went beyond the end of the array. The result of this bug was

benign as the unit reset shortly after being triggered. This bug was fixed

though in this version of firmware.

7. The restart pending timeout was set to 5 minutes instead of 3 minutes.

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Schneider Electric Xantrex XW Instrukcja Użytkownika Strona 21