McQuay BACnet Installation Manual

Installation and Maintenance Manual

IM 1000

Group: Controls
Part Number: IM 1000
Date: April 2010
Supercedes: New

Maverick I™ Commercial Packaged Rooftop Systems

®

BACnet

BACnet MS/TP, BACnet IP, and BACnet Ethernet Networks

Communication Module

NOTICE

Use this manual to physically install the BACnet communication module into the McQuay Maverick I unit
controller and connect the unit controller to your network. Use the appropriate McQuay Engineering Data (ED),
known as the Protocol Information document, to integrate the unit into your network. The Protocol Information
document contains addressing details, BACnet® protocol information, and a list of the data points available to
the network. See the Reference Documents section of this manual for Protocol Information document numbers.
Control integration literature is available from your local McQuay International sales representative and

www.mcquay

© 2010 McQuay International

.com.

Contents

Figures .................................................................................................................................................. 2

Revision History ...................................................................................................................................3

Reference Documents........................................................................................................................... 3

Limited Warranty.................................................................................................................................. 3

General Information..............................................................................................................4

Hazard Identification Messages............................................................................................................4

Description............................................................................................................................................ 5

Application............................................................................................................................................ 5

Component Data ................................................................................................................................... 6

Reset Button ...................................................................................................................................... 6

Light Emitting Diodes (LEDs).......................................................................................................... 6

BACnet Connections ........................................................................................................................ 7

BACnet IP/Ethernet Network Connection........................................................................................ 7

BACnet MS/TP Network Connection............................................................................................... 7

Unit Controller Interface................................................................................................................... 7

Installation............................................................................................................................. 8

Contents of the BACnet Communication Module Kit.......................................................................... 8

Installing a new BACnet Communication Module............................................................................... 8

To install a new BACnet Communication Module........................................................................... 8

Replacing an Existing BACnet Communication Module..................................................................... 9

To Replace a BACnet Communication Module ............................................................................... 9

Integration............................................................................................................................ 11

Configuring the BACnet Communication Module............................................................................. 11

Required Tools................................................................................................................................ 11

Connecting to the BCM Configuration Tool .................................................................................. 11

Configuration using the BCM Configuration Tool......................................................................... 13

BACnet Addressing............................................................................................................................ 15

Testing Network Communication....................................................................................................... 16

Resetting the BACnet Communication Module.................................................................................. 17

Service Information.............................................................................................................18

Test Procedures................................................................................................................................... 18

Parts List............................................................................................................................................. 18

Installation Kit ................................................................................................................................ 18

Figures

Figure 1. Maverick I Unit Controller.................................................................................................... 5

Figure 2. BACnet Communication Module Major Components (Top View) ...................................... 6

Figure 3. BACnet Communication Module Network Connections.................................................... 10

Figure 4. BCM Configuration Tool Login Screen.............................................................................. 12

Figure 5. BCM Configuration Tool Main Menu................................................................................. 12

Figure 6. BCM Configuration Tool Administrator Settings Screen .................................................. 13

Figure 7. BCM Configuration Tool Communications Interface Settings Screen ............................... 14

Figure 8. BCM Configuration Tool Settings Change Confirmation Screen....................................... 14

Figure 9. Successful Ping and Response............................................................................................. 17

2 IM 1000

Revision History

IM 1000 April 2010 Initial release

Reference Documents

Number Company Title Source

ANSI/ASHRAE
135-2001

OM 1047 McQuay International

American Society of
Heating, Refrigerating and
Air-Conditioning Engineers

BACnet® A Data Communication Protocol for Building
Automation and Control Networks

Maverick I Unit Controller Installation and Operation Manual

www.ashrae.org

www.mcquay.com

ED 15116 McQuay International Maverick I Unit Controller Protocol Information, BACnet and

BAC

NET Networks

ED 15126 McQuay International Maverick I Unit Controller Protocol Information, BACnet

Protocol Implementation Conformance Statement (PICS)

Limited Warranty

Consult your local McQuay Representative for warranty details. Refer to Form 933-43285Y. To find
your local McQuay Representative, go to www.mcquay.com

Notice

Copyright © 2010 McQuay International, Minneapolis MN. All rights reserved throughout the world.
McQuay International reserves the right to change any information contained herein without prior
notice. The user is responsible for determining whether this software is appropriate for his or her
application.

® ™ The following are tradenames or registered trademarks of their respective companies: BACnet
from the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.; BAC

ONMARK from Echelon, Inc.; Windows from Microsoft Corporation; McQuay and Maverick from

and L
McQuay International. L

ONMARK International under a license granted by Echelon Corporation.

L

ONMARK and the LONMARK logo are managed, granted, and used by

.

www.mcquay.com

www.mcquay.com

NET

IM 1000 3

General Information

This manual contains the information you need to install the BACnet® Communication Module on a
Maverick I

™

Unit Rooftop Unit Controller, incorporate it into th e BACnet network, and maintain it.

Hazard Identification Messages

Dangers indicate a hazardous situation which will result in death or serious injury if not
avoided.

Warnings indicate potentially hazardous situations, which can result in property damage,
severe personal injury, or death if not avoided.

Cautions indicate potentially hazardous situations, which can result in personal injury or
equipment damage if not avoided.

Electric shock hazard. Can cause personal injury or equipment damage.

This equipment must be properly grounded. Connections and service to the MicroTech III Air
Handling Unit Controller must be performed only by personnel knowledgeable in the operation of
the equipment being controlled.

Static sensitive components. Can cause equipment damage.

Discharge any static electrical charge by touching the bare metal inside the control panel before
performing any service work. Never unplug cables, circuit board terminal blocks, or power plugs
while power is applied to the panel.

This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with this instruction manual, may cause interference to radio communications.
It has been tested and found to comply with the limits for a Class A digital device, pursuant to part
15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will
be required to correct the interference at his or her own expense. McQuay International
disclaims any liability resulting from any interference or for the correction thereof.

!

DANGER

!

WARNING

!

CAUTION

! WARNING

!

CAUTION

NOTICE

4 IM 1000

Description

The BACnet Communication Module incorporates a Maverick I Unit Rooftop Unit into a BACnet
local area network (LAN). It supports the BACnet MS/TP (EIA 485) data link layer (physical layer),
BACnet over Ethernet (10Base-T), or BACnet/IP data link layers (physical layer).

The BACnet Communication Module is a printed circuit board that mounts directly on five pins on
the top side of the Maverick I Rooftop Unit Controller (see Figure 1).

Figure 1. Maverick I Unit Controller

Five-pin header Four supporting stand-offs

Application

The BACnet Communication Module connects the Maverick I Unit Rooftop Unit Controller to a
building automation system (BAS) on a BACnet local area network. It is the interface for the
exchange of BACnet objects between the network and the unit controller. Refer to the McQuay
Maverick I Unit Controller Operation Manual 1047 for unit controller details.

IM 1000 5

Component Data

Figure 2 shows the location of the major components of the BACnet Communication Module.

Figure 2. BACnet Communication Module Major Components (Top View)

Power LED

TX to Unit Controller

RX from Unit
Controller

MS/TP TX
MS/TP RX

RS-485 BACnet MS/TP Network Connection

Shield Ref - +

Unit Controller

Interface

Reset Button

The reset button is used to reset BACnet addressing and configuration parameters. It is important to
note that pressing and holding the Reset button for five seconds causes all BACnet data to revert to
factory default values. For more information, see the Resetting the BACnet Communication Module
section of this document.

Light Emitting Diodes (LEDs)

Six LEDs indicate communication activity and status of the BACnet Communications Module.
These indicators are visible when the communication module is connected to the Maverick I Unit
Rooftop Unit Controller and the unit is powered on (see Table 1 for descriptions of LED activity and
Figure 2 for LED locations).

Reset Button

D7-Ethernet
Activity

RJ-45 BACnet IP/Ethernet Network

Connection

6 IM 1000

Table 1. LED Description of Activity

LED Title LED

Color

TX to Unit Controller Green LED flashes when data is being transmitted from the BACnet Communication Module

RX from Unit Controller Yellow LED flashes when data is being sent to the BACnet Communication from the unit

MS/TP TX Green LED flashes when data is being transmitted via the MS/TP network
MS/TP RX Yellow LED flashes when data is received via the MS/TP network
Power Green This LED remains on when power is applied to the BACnet Communication Module
D7 Green Ethernet activity LED

Meaning

to the unit controller

controller

BACnet Connections

The BACnet Communication Module supports BACnet MS/TP (Master Slave Token Passing),
BACnet IP, or BACnet Ethernet network communication. All BACnet protocols are available on a
single BACnet Communication Module.

BACnet IP/Ethernet Network Connection

An RJ-45 connector connects the BACnet Communication Module to the IP/Ethernet Network (see
Figure 2).

BACnet MS/TP Network Connection

An RS-485 connector connects the BACnet Communication Module to the MS/TP network and has
four pins: + ,

-, Ref, and Shield (see Figure 2).

Unit Controller Interface

A 5-pin header provides the physical connection port from the BACnet Communication Module to
the Maverick I Unit Controller. The unit controller interface on the BACnet Communication Module
plugs into the matching 5-pin header on the Unit Controller. Figure 2 shows the top (or front) side
view of the communication module. Note that the actual connection port from the communication
module to the unit controller is on the bottom (or back) side of the image shown.

IM 1000 7

Installation

The following section describes how to field install a new BACnet
replace an existing BACnet
that it can be incorporated into the BACnet

Communication Module on the Maverick I Rooftop Unit Controller so

network. The BACnet Communication Module s

available for field installation only (see Parts List for ordering information).

!

CAUTION

Electrostatic discharge hazard.
Can cause equipment damage.

This equipment contains sensitive electronic components that may be damaged by
electrostatic discharge from your hands. Before you handle a communications module, you
need to touch a grounded object, such as the metal enclosure, in order to discharge the
electrostatic potential in your body.

Contents of the BACnet Communication Module Kit

The following is the list of items included in the field-installed kit:

 The BACnet Communication Module
 Four plastic stand-offs
 4-pin RS-485 network connector (MS/TP)
 IM 1000

Communication Module or

Installing a new BACnet Communication Module

The BACnet Communication Module is mounted directly to the unit controller via the four stand­offs and 5-pin header. Follow the steps below to install a new BACnet Communication Module
Maverick I Rooftop Unit Controller.

!

WARNING

Electric shock hazard. Can cause personal injury or equipment damage.

This equipment must be properly grounded. Only personnel knowledgeable in the operation
of the equipment being controlled must perform connections and service to the Maverick I
Rooftop Unit Controller.

To install a new BACnet Communication Module

1. Remove power from the unit controller.

2. Connect the BACnet Communication Module to the unit controller. The unit controller interface

on the BACnet Communication Module plugs directly into the 5-pin header on the unit controller
(see Figures 1 and 2).

3. Further secure the BACnet Communication Module to the four plastic support stand offs (see

Figure 1).

4. Connect the BACnet Communication Module to the BACnet MS/TP or BACnet IP/Ethernet

network.
a. For BACnet MS/TP, insert the proper network cable into the BACnet Communication

Module’s 4-pin RS-485 (MS/TP) network connector (see figures 2 and 3).

8 IM 1000

b. For BACnet IP or Ethernet, insert the proper network cable into the BACnet Communication

Module’s RJ-45 network connector (see figures 2 and 3).

5. Apply power to the unit controller.

Replacing an Existing BACnet Communication Module

Follow these steps to remove an existing BACnet Communication Module from the unit controller
and replace it with a new BACnet Communication Module.

!

WARNING

Electric shock hazard. Can cause personal injury or equipment damage.

This equipment must be properly grounded. Only personnel knowledgeable in the operation
of the equipment being controlled must perform connections and service to the Maverick I
Rooftop Unit Controller.

To Replace a BACnet Communication Module

1. Remove power from the unit controller.

2. Pull the network cable connector from the BACnet Communication Module (see Figure 3).

3. Release the stand-off latches and carefully remove the BACnet Communication Module from

the unit controller (see Figures 1 and 2).

4. Connect the BACnet Communication Module to the unit controller. The unit controller interface

on the BACnet Communication Module plugs directly into the 5-pin header on the unit
controller (see Figures 1 and 2).

5. Further secure the BACnet Communication Module to the four plastic support stand offs (see

Figure 1).

6. Connect the BACnet Communication Module to the BACnet MS/TP or BACnet IP/Ethernet

network.
a. For BACnet MS/TP, insert the proper network cable into the BACnet Communication

Module’s 4-pin RS-485 network connector (see figure 3).

b. For BACnet IP or Ethernet, insert the proper network cable into the BACnet Communication

Module’s RJ-45 network connector (see figure 3).

7. Apply power to the unit controller.

IM 1000 9

r

Figure 3. BACnet Communication Module Network Connections

RS-485 BACnet MS/TP Network

Connecto

RJ-45 BACnet IP/Ethernet Network

Connector

10 IM 1000

Integration

Once the BACnet Communication Module has been properly installed on the unit controller, it is
then necessary to adjust the communication interface settings to match your Building Automation
System (BAS) requirements. Once that is complete, you can then integrate the unit controller into
the BAS via a BACnet MS/TP or BACnet IP/Ethernet network.

The BACnet configuration process is described in the following section. Additional information
about network parameters can be found in Table 2 as well as the BACnet Addressing section.

Configuring the BACnet Communication Module

The BACnet Communication Module may be configured and addressed using the BACnet
Communication Module’s browser-based user interface (further referred to as the BCM
Configuration Tool). The BCM Configuration Tool is used for setting and adjusting network
parameters for BACnet MS/TP, BACnet IP, or BACnet Ethernet networks. Refer to McQuay
Protocol Document ED 15125 for detailed descriptions of all available BACnet points.

The following sections describe how to open the BCM Configuration Tool, customize user settings,
modify, test, and reset BACnet network parameters.

Required Tools

You need the following tools to configure the BACnet Communication Module for network
operation:

 PC with Ethernet card and TCP/IP protocol
 Internet Explorer® version 6.0 or later
 Ethernet Cable (either an Ethernet crossover cable or a standard Ethernet cable may be used)

Connecting to the BCM Configuration Tool

The BACnet Communication Module is configured using the BCM Configuration Tool’s web-based
user interface. Follow these steps to connect to the BCM Configuration Tool and adjust user name
and password.

1. Verify that your PC is on the same subnet mask and similar (but not identical) IP address as the

BACnet Communication Module.

2. Confirm that a network cable is connected to the BACnet Communication Module.

3. Open Internet Explorer and type in the IP address of the BCM Configuration Tool.
Note: The BACnet Communication Module ships with a default IP subnet mask (255.255.0.0)

and IP address (172.16.5.8). It may be necessary to change the IP address and subnet
mask of your PC to access the BCM Configuration Tool’s user interface.

4. Once the BCM Configuration Tool’s initial Login screen appears, you can then change the user

name and password, if desired (see Figure 4).
a. Type the default user name, which is “Administrator.”
b. Type the default password, which is “Admin.”
c. Click on the Submit button.
d. After a user name and password have been entered, the Main Menu screen appears (see

Figure 5). The Main Menu provides the option to select either Administrator Settings or

IM 1000 11

Communication Settings. The Administrator Settings screen allows alteration of the user
name and password (see Figure 6.) The Communication Interface Settings screen allows
configuration of network parameters (see Figure 7 and following section titled
Configuration using the BCM Configuration Tool).

e. To change the user name and/or password, press the Administrator Settings button.
f. Modify user name and password as desired.

Note: Both the user n ame and password are case sensitive and must be 4-15 characters in length.

They may be changed at any time in the Administrator Settings section of the user
interface.

g. Once changes have been made to the Administrator Settings screen, a message appears to

confirm that the changes have been accepted (see Figure 8).

Figure 4. BCM Configuration Tool Login Screen

Figure 5. BCM Configuration Tool Main Menu

12 IM 1000

Figure 6. BCM Configuration Tool Administrator Settings Screen

Configuration using the BCM Configuration Tool

Once the user name and password have been set, the BCM Configuration Tool can be used to view
and adjust network parameters for the BACnet Communication Module. The following section
describes how to change parameters necessary for BACnet addressing and initial network
connection. These parameters are discussed in greater detail in Table 2.

1. After login, select the Communication Interface Settings option from the Main Menu screen (see

Figures 5 and 7).

2. Under the Device section, change the following values to meet the installation requirements:
a. Device Name
b. Device Instance
c. Select the Communication Type (BACnet IP, BACnet Ethernet, or BACnet MS/P).

3. Modify other parameters under the BACnet IP or BACnet MS/TP section as required for your
network.

4. Click on the Submit button.

5. Once changes have been made to the BACnet Communications Interface Settings screen, a
message appears to confirm that the changes have been accepted (see Figure 8).

IM 1000 13

Figure 7. BCM Configuration Tool Communications Interface Settings Screen

Figure 8. BCM Configuration Tool Settings Change Confirmation Screen

14 IM 1000

Table 2. Network Configuration Parameters

Parameter Value (Range)/Definition Initial Value/Note

Device Name 12 – 20 character Device Object

Name. Change this value as needed to
match installation parameters

Device Instance 0-4194302/Device Instance of the

BACnet Communication Module

Device Location 0 – 31 characters. An optional

BACnet property intended to indicate
the physical location of the unit
controller

Communication Type 1 – BACnet/IP

2 – BACnet/Ethernet
3 – BACnet MS/TP

DHCP Enabled Off-On/Dynamic Host Configuration

Protocol (DHCP) is a network protocol
that enables a server to automatically
assign an IP Address

IP Address

IP Subnet Mask Subnet Mask of the BACnet

IP Router Address Internet Protocol Router Address 0.0.0.0
UDP Port Number 0 – 65535, (User Datagram Protocol)

MSTP MAC Address 0-127/ The MS/TP address of the

MSTP Baud Rate

MSTP Max Master

MSTP Info Frames

1

The default device instance for BACnet MSTP is 3002 + the MAC address.

IP Address of the BACnet
Communication Module

Communication Module

Identifies the application process in the
destination unit

BACnet Communication Module

9600-19200-38400-76800/ Data
transfer speed
0-127/ This variable specifies the
highest possible address for master
node and shall be less than or equal to
127
0-5/ This variable specifies the
maximum number of information
frames the BACnet Communication
Module may send before it must pass
the token

RTU_CXXXXXXXX Where
XXXXXXXX is the Device
Instance Number

47065 for IP and Ethernet
3002 for BACnet MS/TP
Must be unique throughout the

entire network
Initial values is NULL or blank

1 – BACnet/IP

Default = disabled

172.16.5.8

255.255.0.0

47808

0/ Each device on the BACnet
network must have a unique
MS/TP address

19200 bps

127

1

1

BACnet Addressing

The following section describes the common BACnet configuration parameters used to establish
network communication between the unit controller and the BAS.

BACnet MS/TP

Typical BACnet MS/TP parameters required for configuration are: MAC address, Device Instance,
and Baud Rate.

The BACnet MS/TP Media Access Control (MAC) address is a one-octet address that must be set
during the BACnet Communication Module configuration. The MAC address must be unique to the
MS/TP network and have a valid range of 0-127. It is shipped set to a default value of 0.

IM 1000 15

BACnet IP

Typical BACnet IP parameters required for configuration are: IP Address, Subnet Mask, and Device
Instance. The BACnet Communication Module is assigned a factory default IP address and Subnet
Mask. These are only temporary but are required so that the user knows what address to access the
BACnet Communication Module in order to change network parameters. See your system
administrator for the correct IP Address and Subnet Mask required for your network.

The BACnet/IP (B/IP) address of the Maverick I unit controller consists of the four-octet IP address
followed by the two-octet UDP (User Datagram Protocol) port number. The BACnet/IP Address is a
six-octet value analogous to a MAC (Media Access Control) address. The IP Address portion of the
BACnet/IP address must be unique in the BACnet network segment. The default UDP port number
in the unit controller is 47808 (BAC0 in hexadecimal).

Dynamic Host Configuration Protocol

The BACnet Communication Module supports Dynamic Host Configuration Protocol (DHCP) IP
Addressing for BACnet IP networks.

By default, this feature is disabled. To configure the BACnet Communication Module to use the
DHCP feature, select “DHCP Enabled” check box in the BACnet IP section of the Communications
Interface Settings page (see Figure 7). In a DHCP-based network, the BACnet Communication
Module automatically receives the required parameters from the DHCP server. Consult with your
network administrator for the information on your network setting.

BACnet Ethernet

BACnet Ethernet requires configuration of the Device Instance.
The Ethernet MAC address of the BACnet Communication Module is a six-octet address assigned

when it was manufactured. It is fixed and cannot be changed. Use this address to access the BACnet
Communication Module on a BACnet over Ethernet network.

Testing Network Communication

You can determine whether your PC is properly configured to access the BACnet Communication
Module. To test whether your computer is properly addressed to communicate with the BACnet
Communication Module, follow these steps:

1. Make sure the PC has Subnet Mask 255.255.0.0 and similar (but not identical) IP Address as the

BACnet Communication Module.

2. Open a DOS window (go to Start button\Programs\Accessories\Command Prompt.)

3. Type “ping 172.16.5.8” at the DOS prompt.

4. Press Enter.

5. Observe response. See Figure 9 for a successful response.

16 IM 1000

Figure 9. Successful Ping and Response

Resetting the BACnet Communication Module

All settings that can be changed with the BCM Configuration Tool may be reset to factory defaults
with the Reset Button (see Figure 2 for location of the Reset Button on the BACnet Communication
Module). If the IP Address or the MAC Address has been lost or forgotten, the BACnet
Communication Module can be reset to the default IP Address and Subnet Mask.

All settings from Administrator Settings and/or Communications Interface Settings screens are reset
to factory defaults.

To activate the reset function, push and hold the Reset Button for five seconds while the BACnet
Communication Module is attached to unit controller and while power is applied to both.

Note: The Power, TX to Unit Controller, and RX from Unit Controller LEDs all blink during

regular operation. After the Reset Button is pushed, the Power LED will be solid green fo r
a few seconds and the TX to Unit Controller and RX from Unit Controller LEDs will be
blank for a few seconds.

IM 1000 17

Service Information

Test Procedures

If you can control the unit from the unit controller but you are not able to communicate with unit via
the network, follows these steps:

• Check the network wiring

• Check the network parameters and verify that they are correct and that there are no duplicate
devices on the network

• Check communications

If the BACnet Communication Module still does not respond, contact the McQuay Controls
Customer Support Group at 866-4MCQUAY (866-462-7829).

Parts List

Installation Kit

Description Part Number

Maverick I BACnet Communication Module kit (kit includes
communication module, 4 stand-offs, 4-pin network connector, and
Installation Manual 1000

090016715

18 IM 1000

This document contains the most current product information as of this printing. For the most current product
information, please go to www.mcquay.com. All McQuay equipment is sold pursuant to McQuay’s Standard
Terms and Conditions of Sale and Limited Warranty.

www.mcquay.com • [phone]