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2017 Sensata Technologies
Operation
4.13 Stacking
Operation
This section provides information on how to identify stacked controllers, and how they communicate
between each other and with the network remote.
4.13.1 Viewing the Controllers Network Address - Stacked Confi guration
When multiple PT controllers are connected/networked together in a stacked con
fi
guration, the
controller con
fi
gured with the lowest network address from C01 to C07 is the master controller.
All other controllers networked together become slave controllers and therefore follow the master,
which is in charge of communicating with the inverter.
The controller’s network address is determined using DIP switches 7, 8, and 9; and can be seen
on the front panel display. To view the network address of the controller, the controller’s front
panel display must be in the manual scroll mode (must not be auto-scrolling). With the display in
manual scroll, quickly press and release the SELECT pushbutton to scroll through each operational
display until the C0# (C01 to C07) network address display appears (see Figure 4-14).
Note:
DIP switches 7, 8, and 9 are normally set from the factory will all switches in the DOWN
position. If DIP switch 10 is set UP to enable the controller stacking feature, and DIP switches
7, 8, and 9 are still in the DOWN position, the controller address shows as C00. This controller
address (C00) is not a valid stacking address and will not allow network communication to other
controllers. You must ensure each controller has a valid stacking address from C01 to C07.
Note:
DIP switch 10 must be set UP to enable the controller stacking feature.
Info:
The network address does not show while auto-scrolling. If the display is auto-
scrolling, the display can be stopped from auto-scrolling by pressing the SELECT
pushbutton for one second. Once the display is no longer auto-scrolling, you will need
to quickly press and release the SELECT pushbutton to manually scroll through each
operational display. To resume auto-scrolling, press the SELECT pushbutton for 1 second.
Figure 4-14, Viewing Network Address - Stacked Controller
PV ARRAY
VOLTS
PV ARRAY
KW
BATTERY
BANK VOLTS
BATTERY
BANK AMPS
POWER
STATUS CODE
CONTROLLER
ADDRESS
(when stacked)