If you need a WattNode^® meter for LonWorks^® that behaves like our old WNB series models (models numbers WNB-xx-xxx-FT10), then you should order a WNC-xx-xxx-FT10 Option B. The Option B WattNode meters are very similar to the original WNB series WattNode Plus models, but with a few changes:

• New program ID: 8:00022:1500:0A04:05. Because there are some hardware changes, LonMaker^® requires a new program ID.
• Energy and time of day are stored to non-volatile memory every 5 seconds. The old version stored these every 20 seconds.
• The energy log has been removed (see the WattNode Logger for LonWorks if you need logging). The nviLogRequest and nvoLogData variables still exist, but do nothing.
• The network variable list is identical to the original WNB series WattNode Plus meter.
• Firmware version 3.0x (3.03 as of March 31st, 2009)

Downloads

• WattNode for LonWorks - Option B - Manual (pdf)
• WattNode for LonWorks - Option B - External Interface File (xif)
• WattNode for LonWorks - Option B - Firmware Version 3.03 - Firmware upgrade
• MS-15-WNC-LonWorks-Option-B.pdf - This manual supplement discusses using WNC series LonWorks meters with Option B to replace older WNB series WattNode meters.

See Also

• WattNode Plus for LonWorks - Options
• WattNode Plus FT10 Option B XIF File
• WattNode LonWorks - Option BI
• WattNode Plus Option B - Firmware Version 3.03
• Field Update for Option B or BI
• Reset Energy on Option B and BI Meters
• WattNode LonWorks Option B Variable List