WattNode Plus for LonWorks - Firmware Version 3.37
- Release Date: 2011-11-23
- Neuron System Image: 17 (unchanged)
- Program ID: 8:00022:1500:0A:04:07 (unchanged)
- LonWorks Resource Files:
- Standard LonMark - Ver 13.0
- CControlSys - Ver 1.04 (unchanged). Ver 1.05 is also compatible
- XIF file: WattNode Plus FT10 XIF File (unchanged)
- Firmware Version: 3.37
Bug Fixes
- BUG: Fixed a creep limit bug resulting in a creep limit of 0.67% instead of 0.067%. This bug has existing since firmware version 3.33. The symptom of the bug is that the reported power will jump to zero for any power level below 0.67% of nominal full-scale power (rated CT amps times nominal AC line voltage). The reported power is not supposed to jump to zero until the power is below 0.067% of nominal full-scale power. See the article Creep Limit for an explanation of the creep limit.
Updates
- UPDATE: Added more detailed diagnostics for non-volatile memory errors. These errors appear in the LonWorks error log. See the manual section WattNode Errors for details.
- 24: Error: Peak demand data in FRAM corrupted; bad CRC on one or both banks
- 25: Error: Peak demand data in FRAM corrupted; writing when power failed
- 26: Error: Peak demand data in FRAM corrupted; both banks pending
- 27: Error: Calibration FRAM update pending
- 28: Error: Energy data in FRAM corrupted; bad CRC on one or both banks
- 29: Error: Energy data in FRAM corrupted; writing when power failed
- 30: Error: Energy data in FRAM corrupted; both banks pending
- 31: Error: Log info FRAM corrupted; bad CRC on one or both banks
- 32: Error: Log info FRAM corrupted; writing when power failed
- 33: Error: Log info FRAM corrupted; both banks pending
- 59-61: Error: Internal firmware error. Contact support
Notes
- Program ID is unchanged.
- External interface file (XIF) is unchanged. The name is changed to WNC-FT-Plus-337.XIF. The old XIF version will work.
Should You Upgrade?
We recommend that you only upgrade if you are affected by this bug. Although the upgrade process is generally reliable, there are occasions when a unit becomes unresponsive and it is necessary to return it for reprogramming at the factory.
Upgrade Procedures
- Download the NXE file (firmware flash image) and use LonMaker® or another LNS® network management tool to perform a "Load". This will take about 30 seconds to upgrade the firmware over the network.
- Return the WattNode meter to Continental Control Systems and we will upgrade the firmware at no charge. You will need to contact us for an RMA number first.
