CCS WattNode WND-WR-MB, Installation Manual

Page: 10 / 16

Page 10 of 16 WND-WR-MB-Inst-1.03
Use DIP switches 1-6 to select the Modbus address (1 to 63).
DIP Switch 1 2 3 4 5 6
Up (1) Value 1 2 4 8 16 32
Address Examples
1 1, Up 0, Down 0, Down 0, Down 0, Down 0, Down
1+2+4 = 7 1, Up 1, Up 1, Up 0, Down 0, Down 0, Down
4+16 = 20 0, Down 0, Down 1, Up 0, Down 1, Up 0, Down
1+2+16+32 = 51 1, Up 1, Up 0, Down 0, Down 1, Up 1, Up
Select the RS-485 termination with DIP switch position 7 (see below). The change will take effect
immediately.
Termination DIP Switch 7
none (default) 0, Down
120 ohms 1, Up
Select the baud rate with DIP switch position 8 (see below). The change will take effect immediately.
Baud rates up to 115,200 baud may be factory configured or programmed using the
BaudRate
register.
Baud Rate DIP Switch 8
9,600 (default) 0, Down
19,200 1, Up
The RS-485 settings default to no parity, 8 data bits, and 1 stop bit (N81). Other parity and stop bit
settings may be configured with factory options or with the Modbus
ParityMode register.
4 Operation
4.1 Initial Configuration
Generally, the network integrator will remotely configure the WattNode meter and the variables. For
details on configuring the WattNode meter, see the appropriate
Reference Manual for your model.
The meter does not include a display or buttons, so it is not possible to configure or monitor the
meter directly, other than the basic LED diagnostics described below.
At a minimum, the CtAmps must be programmed with the rated current (amps) of the attached
current transformers for correct measurements. If you are using a potential transformer, then you
will also need to configure the
PtRatio register with the correct ratio. See the website article Using
Potential Transformers for details.
4.2 Power Status LEDs
The three status LEDs on the front of the meter can help indicate correct measurements and opera-
tion. The “
CT1 ”, “ CT2 ”, and “ CT3 ” on the diagrams indicate the three phases.
4.2.1 Normal Startup
The meter displays the following startup sequence whenever power is first applied.
1.0sec 1.0sec 1.0sec
Green Yellow Red
Green Yellow Red
Green Yellow Red
CT3
CT2
CT1