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Data Sharing
Master Controller
ZN510 can send or receive data
(such as setpoint, heat/cool mode,
fan request and space temperature)
to and from other controllers on the
communication link, with or without
a building automation system. This
includes applications where
multiple unit controllers share a
common space temperature sensor,
both for standalone and building
automation applications.
The master controller (the unit
controller with the hardwired zone
sensor) in peer-to-peer
communication can send its zone
temperature to one or more slave
controllers which allows the slave
controllers to track each other’s
zone temperature. For these
applications, Rover is used in set up
of the controller.
See Figure 9 for Master/Slave
setpoint operation for peer-to-peer
set up.
Setpoint Operation
Controllers sharing information
peer-to-peer can share a variety of
data, including the heating/cooling
setpoint (communicated from a
master to a slave).
The standalone master controller
derives its setpoint from either the
local hardwired setpoint input or
from its default setpoints. Peer-to-
peer applications often require the
use of one hardwired setpoint to be
shared across two or more
controllers. This can be achieved by
wiring the adjustable setpoint
(typically included as a part of the
Trane zone sensor module) to the
controller defined as the master.
Trane’s service tool, Rover may be
used to set up the master and one or
more slaves to share that setpoint.
For this application, each
communicating controller uses the
same setpoint.
ON
CANCEL
ZONE
SET
COM MMU NICAT ION
24V
SERVICE
ZONE SENSOR
P
O
W
E
R
BINARY
INP UTS
FAN
(Actual Size 4.0"x5.5")
ANALOG INPUTS
AI 2AI 1
J2-1
J2-2
J2-3
J2-4
J2-5
J2-6
1234567
J1
BINARY
OUTPU TS
TB2-1
TB2-2
TB2-3
TB2-4
TB2-5
TB2-6
TB3-1
TB3-2
TB3-3
TB3-4
TB3-6
J3-1
J3-2
J3-3
J3-4
TEST
SW2
SW1
TB1-1
TB1-2
GND
GND
GND
STATUS
COMM
U6
ComfortLink(tm) 10
X13650607-01 A
NID:
12-34 -56-78- 9A-BC
COMM COMM COMM
98 0010155
ECHELON
FTT-10A
ComfortLink 10
Slave Controller Slave Controller
Note:
Each controller derives it’s effective
setpoint and default setpoints
(including deadbands between set-
points) from the setpoint input
(hardwired or communicated). To
make sure the peer-to-peer setpoint
application results in identical set-
points for each communicating con-
troller, each controller must have
exactly the same default setpoints.
Simplified Peer-to-Peer (Master/
Slave) Setup
To simplify setting up master/slave
applications, the controller provides
information that groups all
necessary shared data into one
communication variable. This
master/slave variable includes the
following information:
z Space temperature.
z Setpoint.
z Heating/cooling mode.
z Occupancy.
z Fan status.
z Unit control algorithm capacity.
This information is communicated
from the master to the slave to
ensure similar unit operation.
Use Rover, Trane’s service tool, to
set up peer-to-peer applications.
Refer to the Rover
product literature
for more information on setting up
applications.
Master Controller
Zone Sensor
Communication Link
Figure 9: Master/slave setpoint operation for peer-to-peer setup