Installation and Maintenance Manual
IM 703-4
Group: Controls
Part Number: IM 703
Date: August 2007
Supersedes: IM 703-3
MicroTech II®
Applied Rooftop Unit Controller and
Self-Contained Unit Controller
BACnet® Communication Module – BACnet/IP
NOTICE
Use this manual to physically install the McQuay MicroTech II Communication Module into the rooftop
unit controller and connect the rooftop 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. MicroTech II control integration
literature is available from your local McQuay International sales representative and www.mcquay.com.
© 2007 McQuay International
Contents
Figures .............................................................................................................................................................................. 2
REVISION HISTORY ................................................................................................................................................................ 3
Reference Documents........................................................................................................................................................ 3
Limited Warranty .............................................................................................................................................................. 3
INTRODUCTION................................................................................................................................................................... 4
Recognize Safety Symbols, Words and Labels .................................................................................................................. 4
GENERAL INFORMATION ........................................................................................................................................................ 5
DESCRIPTION ......................................................................................................................................................................... 6
APPLICATION ......................................................................................................................................................................... 7
COMPONENT DATA ................................................................................................................................................................ 7
Light Emitting Diodes (LEDs) .......................................................................................................................................... 8
Headers ............................................................................................................................................................................. 8
INSTALLATION AND NETWORK CONNECTION........................................................................................................ 9
General ............................................................................................................................................................................. 9
Required Equipment.......................................................................................................................................................... 9
Installing a new BACnet/IP Communication Module ....................................................................................................... 9
Connecting the BACnet/IP Communication Module to the Network: Applied Rooftop Units........................................... 9
Connecting the BACnet/IP Communication Module to the Network: Self-Contained Units............................................. 9
Replacing a BACnet/IP Communication Module.............................................................................................................. 9
Connecting the BACnet/IP Communication Module to the Network .............................................................................. 10
INTEGRATION.................................................................................................................................................................... 14
Network Connection........................................................................................................................................................ 14
Addressing and Establishing Communications ............................................................................................................... 14
BACnet/IP Address ......................................................................................................................................................... 14
IP Subnet Mask ............................................................................................................................................................... 14
IP Router Address ........................................................................................................................................................... 14
Dedicated BACnet Networks........................................................................................................................................... 14
Shared BACnet Networks................................................................................................................................................ 14
Access to Properties........................................................................................................................................................ 15
Configuring the Unit Controller ..................................................................................................................................... 15
Factory-Installed BACnet/IP Communication Modules ................................................................................................. 15
Field-Installed BACnet/IP Communication Modules...................................................................................................... 15
Important Notes............................................................................................................................................................... 16
SERVICE INFORMATION ................................................................................................................................................ 17
TROUBLESHOOTING ............................................................................................................................................................. 17
REPLACEMENT PARTS .......................................................................................................................................................... 17
Figures
Figure 1. BACnet/IP Communication Module ------------------------------------------------------------------------------------------- 6
Figure 2. Building Automation System ---------------------------------------------------------------------------------------------------- 7
Figure 3. BACnet/IP Communication Module Major Components-------------------------------------------------------------------- 7
Figure 4. BACnet/IP Communication Module Main Control Board -----------------------------------------------------------------10
Figure 5. Mount BACnet/IP Communication Module ----------------------------------------------------------------------------------11
Figure 6. BACnet/IP Connection Schematic Diagram ---------------------------------------------------------------------------------11
Figure 7. BACnet Network Cable Routing for Applied Rooftop Units ---------------------------------------------------------------12
Figure 8. Network Cable Routing - Self-Contained Unit ------------------------------------------------------------------------------13
2
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Revision History
IM 703
Initial release
IM 703-1
IM 703-2
IM 703-3
November 2004
IM 703-4
August 2007
Updated IP router address on Table 1 & formatting updates.
Reference Documents
Number
Company
Title
Source
IM696
McQuay
International
McQuay
International
McQuay
International
McQuay
International
McQuay
International
McQuay
International
McQuay
International
McQuay
International
MicroTech II Applied Rooftop Unit Controller
Installation Manual
MicroTech II Applied Rooftop Discharge Air Controller
Operation Manual
MicroTech II Applied Rooftop Space Comfort Controller
Operation Manual
MicroTech II Vertical Self-Contained Unit Controller
Installation Manual
MicroTech II Vertical Self-Contained Discharge Air
Controller Operation Manual
MicroTech II Vertical Self-Contained Space Comfort
Controller Operation Manual
MicroTech II Protocol Information Data for McQuay
International Applied Rooftop Units
MicroTech II Protocol Information Data for McQuay
International Self-Contained Units
www.mcquay.com
OM137
OM138
IM710
OM711
OM712
ED15060
ED15061
www.mcquay.com
www.mcquay.com
www.mcquay.com
www.mcquay.com
www.mcquay.com
www.mcquay.com
www.mcquay.com
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 © 2007 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.; LONWORKS
and LONMARK from Echelon, Inc.; Windows from Microsoft Corporation; McQuay and MicroTech II
from McQuay International.
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3
Introduction
Recognize Safety Symbols, Words and Labels
The following symbols and labels are used throughout this manual to indicate immediate or potential hazards. It is the
owner and installer’s responsibility to read and comply with all safety information and instructions accompanying these
symbols. Failure to heed safety information increases the risk of property damage and/or product damage, serious personal
injury or death. Improper installation, operation and maintenance can void the warranty.
!
CAUTION
Hazards or unsafe practice CAN result in property damage, product damage, severe
personal injury and or death.
NOTICE
Hazards or unsafe practices, which CAN result in property, damage, product damage, and
or personal injury.
IM702-4
4
General Information
This manual contains the information you need to install the MicroTech II® Communication Module for BACnet® IP on a
MicroTech II rooftop or self-contained unit controller and integrate it into a BACnet network.
!
WARNING
Electric shock hazard. Can cause personal injury or equipment damage.
This equipment must be properly grounded. Connections and service to the MicroTech II control panel must be
performed only by personnel who are knowledgeable in the operation of the equipment being controlled.
!
CAUTION
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.
NOTICE
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.
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5
Description
A MicroTech II BACnet/IP Communication Module incorporates a MicroTech II unit controller into a BACnet Local Area
Network (LAN). ). It supports BACnet over Ethernet (10Base-T) and is the interface to the Building Automation Network
using BACnet objects.
The BACnet/IP Communication Module is a printed circuit board that plugs into the MicroTech II unit controller. Figure
1shows an outline drawing of the BACnet/IP Communication Module.
Figure 1. BACnet/IP Communication Module
2.60 in
4.00 in
6
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Application
The BACnet/IP Communication Module connects the MicroTech II rooftop or self-contained unit controller to the building
automation system (BAS) on a BACnet Local Area Network. It is the interface adapter for the exchange of BACnet objects
between the network and the unit controller. Figure 2 shows the BACnet/IP Communication Module and unit controller
integrates into a BAS.
Figure 2. Building Automation System
BACnet/IP
Network
MicroTech II
Main Control
Board
MicroTech II
BACnet/IP
Communications
Module
MicroTech II
Keypad
Component Data
Figure 3 shows the location of the major components of the BACnet/IP Communication Module.
Figure 3. BACnet/IP Communication Module Major Components
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7
Light Emitting Diodes (LEDs)
The BACnet/IP Communication Module has three LEDs to indicate communication activity and status of the communication module.
LED
Function
RX
TX
COL
Lights when the communications module is receiving data
Lights when the communications module is transmitting data
Lights when there is a collision on the BACnet network
Headers
The two headers on the component side of the communications module connect the unit controller to the BACnet/IP
Communication Module through two sets of connector pins on the main control board.
8
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Installation and Network Connection
General
A BACnet/IP Communication Module can be factory or field-installed and can be purchased by itself or as a kit The
BACnet/IP Communication Module and this installation manual are available as a kit (see the Replacement Parts section for
details). The following section describes how to install a new BACnet/IP Communication Module or replace an existing
module. It also describes how to connect the BACnet/IP Communication Module to the BACnet network.
Required Equipment
Field installation/replacement and network connection requires the following:
•
A BACnet/IP Communication Module
•
Straight-through ethernet cable connected to a hub
Installing a new BACnet/IP Communication Module
1.
Remove power from the unit controller.
2.
Locate the two empty connectors and four standoffs for the BACnet/IP Communication Module on the unit controller
(see Figure 4.)
3.
Orient the BACnet/IP Communication Module so that the circuit side faces out (i.e., the component side faces down).
Align the BACnet/IP Communication Module so that the connector pins on the unit controller’s main control board can
penetrate the headers on the component side of the communications module (see Figure 5.)
4.
Push the BACnet/IP Communication Module onto the connector pins and standoffs until you hear the faint click of the
locking standoffs securing the module in place.
Connecting the BACnet/IP Communication Module to the Network: Applied Rooftop
Units
1.
Connect the BACnet/IP Communications Module to the network (see Figure 6.)
2.
Route the network cable through an opening in the bottom of the cabinet, up the cable raceway, across the shelf below
the unit controller, and up to the unit controller’s main control board (see Figure 7).
3.
Plug the network cable into the RJ45 jack on the unit controller.
Connecting the BACnet/IP Communication Module to the Network: Self-Contained
Units
1.
Connect the BACnet/IP Communication Module to the network (see Figure 6.)
2.
Route the network cable through an opening in the cabinet to the unit controller’s main control board (see Figure 8.)
Each corner post has knockouts for easy access.
3.
Plug the network cable into the RJ45 jack on the unit controller.
4.
Apply power to the unit controller.
Replacing a BACnet/IP Communication Module
Follow the steps below to replace a BACnet/IP Communication Module on a rooftop or self-contained unit controller:
1.
Remove power from the unit controller.
2.
Locate the four standoffs for the BACnet/IP Communication Module in the unit controller’s main control board (see
Figure 4.)
3.
Use a pliers or screwdriver to depress the barb on one standoff and gently pull the corner of BACnet/IP Communication
Module over the barb. Do not bend the BACnet/IP Communication Module or misalign the connector pins.
4.
Proceed to the other three corners, remove the BACnet/IP Communication Module from each standoff, and pull the
module over the standoffs.
5.
Gently lift the BACnet/IP Communication Module from the unit controller.
6.
Orient the replacement BACnet/IP Communication Module so that the circuit side faces out (i.e., the component side
faces down). Align the BACnet/IP Communication Module so that the connector pins on the unit controller can
penetrate the headers on the component side of the BACnet/IP Communication Module (see Figure 5.)
IM703-4
9
7.
Push the BACnet/IP Communication Module onto the connector pins and standoffs until you hear the faint click of the
locking standoffs securing the module in place.
Connecting the BACnet/IP Communication Module to the Network
1.
Connect the BACnet/IP Communication Module to the network (see Figure 6.)
2.
Verify that the network cable is plugged into the RJ45 jack on the unit controller.
3.
Apply power to the unit controller.
Figure 4. BACnet/IP Communication Module Main Control Board
Location for
LonWorks and
MSTP BACnet
Communications
Modules
LEDs
Locking Standoff
(4 places)
10
RJ45 Jack
BACnet Network
Connector
IM703-4
Figure 5. Mount BACnet/IP Communication Module
Figure 6. BACnet/IP Connection Schematic Diagram
Main
Control
Board
(MCB)
BACnet
Network
RJ45
Modular
Jack
IM703-4
MicroTech II
BACnet/IP
Communications
Module
11
Figure 7. BACnet Network Cable Routing for Applied Rooftop Units
BACnet/IP
Communications
Comunications
Module
Main Control Board
Cable Shelf
Network Cable
RJ45 Jack
BACnet/IP Network
Connection
Cable Raceway
Terminal Block TB2
Opening in
the floor
12
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Figure 8. Network Cable Routing - Self-Contained Unit
Note that the dotted cable path indicates
that you can route the network cable in the
most convient path for your application.
Controller
MicroTech II BACnet/IP
Communications
Coomunications
Module
RJ45 Jack for
Network Cable
Connection
IM703-4
Network Cable
13
Integration
Integrating the BACnet/IP Communication Module into a BAS involves three steps:
•
Connecting the rooftop or self-contained unit controller to the network
•
Addressing and establishing communications with the unit controller
•
Configuring the unit controller
Network Connection
After inserting the BACnet/IP Communication Module to the MicroTech II unit controller, connect the MicroTech II unit
controller into the BACnet network (see Installation and Network Connection section for details).
Addressing and Establishing Communications
There are three parameters that must be configured properly to establish communication between unit controller and the
BACnet IP network:
• BACnet/IP Address
• IP Subnet Mask
• IP Router Address
BACnet/IP Address
The BACnet/IP (B/IP) address of the unit controller in a BACnet/IP network 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 address. The unit controller default UDP port number is 47808 (BAC0 in hexadecimal). The BACnet/IP Address
must be unique in the BACnet network.
IP Subnet Mask
The device object of the unit controller contains an IP Subnet Mask (default is 255.255.0.0) and a unique IP address. The
controller does not support DHCP (Dynamic Host Configuration Protocol) IP addressing.
IP Router Address
An IP Router is used for sending IP messages to and from the BACnet/IP subnets and may or may not be installed on the
network. If a router is installed, see your system integrator for additional information regarding BACnet IP Router
addressing,
Dedicated BACnet Networks
The unit controller can be incorporated into a BACnet network dedicated to BACnet devices only or a BACnet network
shared with BACnet devices and other devices. For a BACnet network dedicated to BACnet devices only, the unit
controller default IP Address and IP Subnet may be used. The default IP Address is 172.16.83.46 and Subnet Mask is
255.255.0.0. The current value of the IP Address property can be read from the device object using McQuay MicroTech II
ServiceTools™ software or another BACnet device.
To set the IP Address of other BACnet/IP devices (workstations, routers, controllers) in the dedicated BACnet network,
select IP Addresses with the first two octets the same as the IP Address of the unit controller and the third and fourth octets
close to the third and fourth octets of the unit controller IP Address. For example, assign the IP Address of the workstation
to 172.16.85.65 for a controller using the default IP Address of 172.16.83.46. Use the same IP Subnet Mask in the
workstation as in the controller (255.255.0.0).
Shared BACnet Networks
Integrating the unit controller into a shared BACnet LAN requires close cooperation with the network administrator of the
shared BACnet network. The steps to follow are:
• Obtain the IP Subnet Mask of the network
• Obtain static IP Addresses for all rooftop or self-conatined unit controllers
• Obtain the IP Router Address (if applicable)
• Write the IP Address, IP Subnet Mask, and IP Router Address to the device object properties in the rooftop or selfcontained unit controller
The default BACnet/IP Network Address in the rooftop or self-conatined unit controller is 1001. The Network Address must
be unique for each BACnet network segment. All BACnet/IP devices on all BACnet segments must have the same
14
IM703-4
BACnet/IP Network Address. This is the Network Address property of the device object of the MicroTech II Unit
Controller. See Configuring the Unit Controller below for details regarding setting and changing network communication
parameters.
Access to Properties
Object properties are accessible from the network by specifying the device object identifier, object identifier, and the
property identifier. To access a property, you must specify the object identifier, including the device object identifier, or the
object name including the device object name, and the property identifier.
Configuring the Unit Controller
All Rooftop and Self-contained unit controllers are loaded with software and configured at the factory for stand-alone
operation. The unit is ready to operate with default set point parameters that can be changed with the unit’s keypad/display
or via a network signal. Refer to the appropriate operation manual for the default values and keypad/display operating
instructions. Refer to the appropriate MicroTech II Protocol Information documents for descriptions of the available network variables (see Reference Documents section).
There are 12 communication parameters involved in setting up the unit controller for proper communication with the
various communication module options (BACnet IP, BACnet MS/TP or LONWORKS®). These parameters are set
differently by the factory depending on which communication module is ordered and shipped with the unit. Table 1 below
lists the four possible sets of default parameter settings. Not all the parameters apply to all the communication module
options. The entries in the table that are shown in bold font apply to a particular communication module option.
Factory-Installed BACnet/IP Communication Modules
If the rooftop or self-contained unit controller is equipped with a factory-installed BACnet/IP Communication Module, the
controller is pre-configured with the values shown in Table 1. These parameters do not require field modification.
Field-Installed BACnet/IP Communication Modules
A BACnet/IP Communication Module can be added to a rooftop or self-contained unit controller in the field for these
reasons:
1.
The unit did not originally ship with a communication module.
2.
The unit originally shipped with a LONWORKS Communication Module but requires replacement with a BACnet
Communication Module. Refer to Table 1 to determine whether or not changes are required to communication setup
parameters.
3.
The BACnet/IP Communication Module that shipped with the unit requires replacement
Note:
McQuay MicroTech II ServiceTools™ software is required to modify these parameters. Call the McQuay
Controls Customer Support group at 866-4MCQUAY for more information.
Table 1. Factory Communication Setup Parameter Settings
Parameter Name
BACnet/IP
BACnet MSTP
LON (DAC or SCC)
No Communication
Module
lPAddress
IP Subnet Mask
UDP Port Number
IP Router Address
IP Network Address
MSTP Network Address
MSTP MAC Address1
MSTP Baud Rate
Communication Option
Device Instance Number2
Max APDU Length3
Device Object Name4
172.16.83.46
255.255.0.0
47808
172.16.128.0
1001
2001
129
19200
None
XXXXXX
1024
MTll RTUC
XXXXXXXXX
172.16.83.46
255.255.0.0
47808
172.16.128.0
1001
2001
2
19200
MSTP
XXXXXX
501
172.16.83.46
255.255.0.0
47808
172.16.128.0
1001
2001
129
19200
MSTP
XXXXXX
501
172.16.83.46
255.255.0.0
47808
172.16.128.0
1001
2001
129
19200
MSTP
XXXXXX
501
MTll RTUC
XXXXXXXXX
or
MTII SCUC
XXXXXXXXX
MTll RTUC
XXXXXXXXX
or
MTII SCUC
XXXXXXXXX
MTll RTUC
XXXXXXXXX
or
MTII SCUC
XXXXXXXXX
or
MTII SCUC
XXXXXXXXX
IM703-4
15
Important Notes
1.
The MSTP MAC Address is not adjustable from MicroTech II ServiceTools software; it is set via the dip-switch block
on the MSTP communication module.
2.
The Device Instance Number is factory set equal to the last six significant digits of the 18 digit number on the barcode
label on the unit's main control board (MCB). For example if the last six digits are 043.066, then the Device Instance
Number is set to 43066. Whether or not this parameter is use by the system integrator, it must be set to a unique value
from all other controllers in the network.
3.
The Max APDU Length parameter should not be set higher than 1024 for BACnet/IP or 501 for BACnet MSTP.
4.
The Xs in Device Object Name are factory set equal to the last nine digits of the 18 digit number on the bar-code label
on the units main control board (MCB). For example if the last nine digits are 000.043.066, then the Device Object
Name is set to MTII RTUC 000043066 for an applied rooftop unit or MTII SCUC 000043066 for a vertical selfcontained unit. Whether or not this parameter is use by the system integrator, it must be set to a unique value from all
other controllers in the network.
16
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Service Information
Troubleshooting
If you can control the unit from its keypad, but you are not able to communicate with unit via the network:
•
Check the network communication parameters in the controller for proper settings. Refer to the Configuring the Unit
Controller section for details.
•
Check the network wiring.
•
Check communications. Refer to the Addressing and Establishing Communications section for details.
•
Use the standard TCP/IP suite of protocols to check your connectivity with other devices. For example, type “ping <IP
address of the BACnet/IP Communication Module>”. If you get a response from that IP address, you are connected to
the BACnet/IP Communications Module.
•
Use the Transmit LED to determine whether data is reaching the output connector; use the Receive LED to determine
whether any responses are being received.
If the BACnet/IP Communication Module still does not respond, contact McQuay Controls Customer Support at 8664MCQUAY (866-462-7829).
Replacement Parts
Contact the McQuay Parts group at 763-553-5451 for replacement parts.
Description
Part Number
MicroTech II BACnet/IP Communication Module kit (kit includes module and IM 703)
090016701
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17
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 Product Warranty.
© 2007 McQuay International • www.mcquay.com • 800-432-1342
18
IM703-4
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