12
For other LED patterns, see the
or contact support for assis-
tance.
4.3 Communication LED
Near the upper left corner, there is a diagnostic
Com
(communication) LED that can indicate the
following:
●
Green Off
A short green flash indicates a valid packet addressed to this device.
●
Yellow Off
Short yellow flashes or rapid flashing indicate valid packets addressed to differ-
ent devices. The BACnet WattNode will only show this indication if it has received no packets
addressed to this device for several seconds.
●
Red
A one second red flash indicates an invalid packet: bad baud rate, bad
CRC, noise, bad parity, etc.
●
Y
R
Y
R
Y
R
Rapid red/yellow flashing indicates a possible address conflict (two
devices with the same DIP switch address).
●
Yellow
Solid yellow indicates that this meter believes it is the sole master
device on the network. It will scan continuously for other devices until another device is found.
4.4 Monitoring
WattNode BACnet models communicate measurements over a BACnet MS/TP network. The mea-
surements include: energy, power, voltage, current, line frequency, power factor, reactive power,
and demand.
In order to monitor and configure networked WattNode models, you will need an appropriate moni-
toring solution, either standalone or PC software.
See the
for a complete list of network accessible variables.
4.5 Maintenance and Repair
The WattNode meter requires no maintenance. It is not user serviceable and there are no replace-
able parts except the pluggable screw terminals. There are no diagnostic tests that can be per-
formed by the user, other than checking for errors via the BACnet interface or the status LEDs.
In the event of any failure, the meter must be returned for service (contact CCS for an RMA). For
a new installation, follow the troubleshooting instructions in the
before returning the meter for service, to ensure that the problem is not connection related.
The WattNode meter should not normally need to be cleaned, but if cleaning is desired, power
must be disconnected first and a dry or damp cloth or brush should be used.
5 Specifications
The following is a list of basic specifications. For extended specifications, see the
5.1 Accuracy
The following accuracy specifications do not include errors caused by the current transformer ac-
curacy or phase angle errors. “Rated current” is the current that generates a CT output voltage of
0.33333 Vac.
Normal Operation:
●
Line voltage
: -20% to +15% of nominal
●
Power factor
: 1.0
●
Frequency
: 48 - 62 Hz
●
Ambient Temperature
: 23°C ± 5°C
●
CT Current
: 5% - 100% of rated current
Accuracy:
±0.5% of reading
