Trane Tracer, ZN510 Controller manual Data Sharing, Master Controller

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

Master Controller

ON

CANCEL

Zone Sensor

Communication Link

0010155 TB1-2

TB1-1

J1

1

2

3

4

5

6

7

OUTPUTS

POWER

BINARY

98

ComfortLink(tm) 10

NID: 12-34-56-78-9A-BC

J2-3

BINARY INPUTS

(Actual Size 4.0"x5.5")

STATUS

TEST

X13650607-01 A

J2-1

SW2

J2-2

ComfortLink 10

J2-6

ECHELON 10A-FTT

OMMC

SERVICE

INPUTSANALOG

J3-4

AI1AI2

J2-4

U6

J2-5

J3-3

J3-2

	COMM MUNICATION							ZONE SENSOR		J3-1
					SW1
TB2-1	TB2-2	TB2-3	TB2-4	TB2-5	TB2-6	TB3-1	TB3-2	TB3-3	TB3-4	TB3-6
COMM		COMM		COMM

Slave Controller Slave Controller

Figure 9: Master/slave setpoint operation for peer-to-peer setup

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.

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:

zSpace temperature.

zSetpoint.

zHeating/cooling mode.

zOccupancy.

zFan status.

zUnit 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.

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