McQuay ACZ-B Installation Manual

Download

Page 1

Installation and Maintenance Manual

IM 906-2

MicroTech II® McQuay Chiller Unit Controller BACnet® Communication Module (MS/TP)

• WSC Water-Cooled Centrifugal, Single-Compressor

• WDC Water-Cooled Centrifugal, Dual-Compressor

• WPV Water-Cooled Centrifugal, Single-Compressor

• HSC Water-Cooled Single-Compressor Centrifugal, Heat Recovery

• TSC Water-Cooled Single-Compressor Centrifugal, Templifier

• WMC, WMM Water-Cooled Centrifugal, Magnetic Bearing

Group: Controls Part Number: IM 906 Date: December 2010 Supersedes: IM 906-1

• AGZ–A, B, C Air-Cooled Global Scroll

• ACZ–A, B Air-Cooled Scroll Condensing Unit

• WGZ, TGZ Water-Cooled Global Scroll

• AGS–A, B, C, D, DP Air-Cooled Global Screw

• WGS Water-Cooled Global Screw

NOTICE

Use this manual to physically install the McQuay MicroTech II Communication Module into the chiller unit controller and connect the chiller 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.

Page 2

Contents

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

Revision History....................................................................................................................................4

Reference Documents............................................................................................................................ 4

Limited Warranty.................................................................................................................................. 4

Introduction............................................................................................................................5

Recognize Safety Symbols, Words and Labels ..................................................................................... 5

General Information...............................................................................................................6

Description............................................................................................................................................ 6

Application............................................................................................................................................ 6

Component Data.................................................................................................................................... 7

Light Emitting Diodes (LEDs) .......................................................................................................... 7

BACnet Network Connector ............................................................................................................. 8

8-Pin Header......................................................................................................................................8

P1, P2 and P3 Jumpers...................................................................................................................... 8

Pushbutton......................................................................................................................................... 8

Installation..............................................................................................................................9

Mounting............................................................................................................................................... 9

Contents of the BACnet Communication Module Kit....................................................................... 9

Installing a new BACnet Communication Module............................................................................ 9

Mounting a BACnet Communication Module................................................................................... 9

Replacing an Existing BACnet Communication Module................................................................ 10

Meaning of the Jumpers .................................................................................................................. 11

Integration ............................................................................................................................12

Configuring the Unit Controller.......................................................................................................... 12

Network Connection............................................................................................................................ 12

BACnet MS/TP Addressing ............................................................................................................ 12

Configuring the BACnet Communication Module.............................................................................. 12

Restarting and Resetting the BACnet Communication Module .......................................................... 12

Restarting the BACnet Communication Module............................................................................. 12

Resetting Factory Defaults when the Chiller is Off:........................................................................ 13

Resetting Factory Defaults when the Chiller is On:......................................................................... 13

Service Information .............................................................................................................14

Test Procedures................................................................................................................................... 14

Parts List ............................................................................................................................................. 14

Installation Kit................................................................................................................................. 14

Appendix A: Chiller BACnet Communication Module Configuration Tool....................15

Introduction......................................................................................................................................... 15

The Configuration Tool as a BACnet Device.................................................................................. 15

Windows and PC Requirements.......................................................................................................... 15

Windows Requirements................................................................................................................... 15

BACnet MAC Layer Support.......................................................................................................... 15

PC Requirements............................................................................................................................. 15

Install and Set up the Configuration Tool ........................................................................................... 16

Overview of Components................................................................................................................ 16

Installation and Setup...................................................................................................................... 16

Launch and use the Configuration Tool to Set Network Parameters................................................... 16

Verify BACnet Communications......................................................................................................... 23

Download BACnet Firmware Files..................................................................................................... 23

BACnet MS/TP MAC Layer Select Options....................................................................................... 25

Troubleshooting Guide.......................................................................................................26

Figures

Figure 1. BACnet Communication Module External Connectors (Top View)...................................... 7

Figure 2. Serial Card Slot in Unit Controller....................................................................................... 11

IM 906-2 2

Page 3

Figure 3. Serial Card Slot Detail ......................................................................................................... 11

Figure 4. BACnet MAC Layer Select Dialog Box .............................................................................. 17

Figure 5. Initiate Communications...................................................................................................... 18

Figure 6. Configuration Tool Communicating Properly..................................................................... 18

Figure 7. Change Device Instance and Re-establish Communications............................................... 20

Figure 8. Change Baud Rate ........................................................................................................... 20

Figure 9. BACdoor OEM Client Library............................................................................................ 22

Figure 10. BACdoor OEM Client Library Configuration ................................................................... 22

Figure 11. Reading Present Values using the Test Tab....................................................................... 23

Figure 12. System Tab ........................................................................................................... 24

Figure 13. BACnet MS/TP MAC Layer Status Window.................................................................... 25

Figure 14.MS/TP MAC Layer Status Expanded Window................................................................... 25

IM 906-2 3

Page 4

Revision History

IM 906 February 2008 Initial release IM 906-1 July 2009 Removed reference to requiring download of CSV file for metric units (it is not required). See

IM 906-2 September 2010 Removed references to AGZ. Corrected Table 13 – Max Masters & Max Info Frames were transposed.

Appendix B for details on using the BACnet Configuration Tool to change from English to Metric units of measure.

Modified BCM Configuration Tool section.

Reference Documents

Number Company Title Source

ANSI/ASHRAE 1352001

IMM AGS, IMM AGSD, IMM AGSDP

IMM ACZ/AGZ McQuay International MicroTech II Air-Cooled Condensing Unit Installation and Maintenance

IMM ACZ1 McQuay International MicroTech II Air-Cooled Condensing Unit Installation and Maintenance

IMM AGZ1 McQuay International MicroTech II Air-Cooled Scroll Chiller Installation and Maintenance

IMM WGZ, IMM WGZC

IMM WMC McQuay International MicroTech II Magnetic Bearing Centrifugal Chiller Installation and

IMM WSCWDC McQuay International MicroTech II Chiller Unit Controller Installation and Maintenance

IMM WGS McQuay International MicroTech II Water Cooled Screw Compressor Chiller Installation and

OM AGS, OM AGSD, OM AGSDP

OM CentrifMicro II McQuay International MicroTech II Unit Controller for Centrifugal Chillers and Templifiers

ED 15062 McQuay International MicroTech II Chiller Unit Controller Protocol Information, BACnet

OM WGS McQuay International MicroTech II Water-Cooled Screw Chiller Operating Manual www.mcquay.com OM WMC McQuay International MicroTech II Magnetic Bearing Compressor Chiller www.mcquay.com IOMM TSC McQuay International MicroTech II Templifier Single Compressor Centrifugal Installation,

American Society of Heating, Refrigerating and AirConditioning Engineers

McQuay International MicroTech II Air-Cooled Screw Chiller Installation and Maintenance

McQuay International MicroTech II Water-Cooled Scroll Chiller Installation Manuals www.mcquay.com

McQuay International MicroTech II Air-Cooled Screw Chiller Operating Manuals www.mcquay.com

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

Manuals

Manual

Maintenance Manual

Manual

Maintenance Manual

Operating Manual

MS/TP and L

Operation, and Maintenance Manual

ONWORKS

Networks

www.ashrae.org

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 © 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.; Windows from Microsoft Corporation; McQuay and MicroTech II from McQuay International.

IM 906-2 4

Page 5

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.

DANGER

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

WARNING

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

CAUTION

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

IM 906-2 5

Page 6

General Information

This manual contains the information you need to install the BACnet® Communication Module on a McQuay Chiller Unit Controller, incorporate it into the BACnet network, and maintain it.

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

This equipment must be properly grounded. Only personnel that are knowledgeable in the operation of the equipment being controlled must perform connections and service to the Chiller Unit Controller.

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

CAUTION

NOTICE

Description

Application

The MicroTech II® BACnet Communication Module incorporates a McQuay MicroTech II Chiller Unit Controller into a BACnet local area network (LAN). It supports the BACnet MS/TP (EIA 485) data link layer (physical layer.)

The BACnet Communication Module is a printed circuit board that mounts in the Chiller Unit Controller panel. Figure 2 on page 11 shows a drawing of the BACnet Communication Module itself.

The BACnet Communication Module connects the Chiller 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.

IM 906-2 6

Page 7

Component Data

Pushbutton

Figure 1 shows the external connectors of the BACnet Communication Module.

Figure 1. BACnet Communication Module External Connectors (Top View)

Status LEDs

Network Connector

GND

Light Emitting Diodes (LEDs)

The BACnet Communication Module has a Status LED and an RS485 LED to indicate communication activity and status of the BACnet Communication Module. These indicators are visible even when the module is installed in the Chiller Unit Controller.

Status LED

The status LED indicates the communication state between the BACnet Communication Module and the Chiller Unit Controller.

During power-up, the status LED will show the following sequence:

• Off

• 2 seconds after startup: quick flashing red-green

• 5 seconds after startup: steady green

• 50 seconds after startup: regularly flashing (see Communication State with the BACnet

Communication Module section below for color descriptions)

Communication State with the BACnet Communication Module

After startup has completed, the Status LED will regularly blink to show the communication status between the BACnet Communication Module and the Chiller Unit Controller. The table below describes the different color and states.

Jumpers (P1, P2 & P3)

RS485 LEDs

8-Pin Header

Table 1. Status LED Definitions

Status LED Color Meaning

Quick Flashing Green Communication has been established between the BACnet

Communication Module and the Chiller Unit Controller.

Slow Flashing Red Communication has not been established between the BACnet

Communication Module and the Chiller Unit Controller.

Green/Red Flashing BACnet Communication Module detects an error or a temporary

answer fault from the Chiller Unit Controller.

IM 906-2 7

Page 8

RS485 LEDs

The RS485 LEDs shows the communication status between the BACnet Communication Module and the BACnet MS/TP network. The table below describes the status of the RS485 LEDs.

Table 2. Status of RS485 LEDs Definitions

RS 485 LED Color Meaning

Green with occasional red flashes

Green and red ON together

Communication is established. The BACnet MS/TP definition is as follows:

• Green ON: BACnet Communication Module keeps the token

• Green OFF: BACnet Communication Module does not keep the

• Red ON: Poll-For-Master; search for a master to pass the token to

Communication is not established. The BACnet MS/TP definition is that the communication status is in a state of continuous Poll-For-Master. Possible explanations for this are as follows:

• Connection error

• No network is found due to:

BACnet Network Connector

token

• Electrical connection error

• Communication settings are not compatible with the other

network devices that are connected to the network

An RS485 connector connects the BACnet Communication Module to the MS/TP Network.

8-Pin Header

The 8-pin header connects the Chiller Unit Controller to the BACnet Communication Module.

P1, P2 and P3 Jumpers

Jumpers P1, P2 and P3 are located inside the front opening of the cover.

• Jumper P1 adds a 510-ohm polarization resistance between the negative data line (-) and GND

• Jumper P2 adds a 120-ohm terminal resistance between the two data lines (+) and (-)

• Jumper 3 adds a 510-ohm polarization resistance between the positive data line (+) and the

+5Vdc internal voltage

Refer to the Mounting a BACnet Communication Module section on page 9 for information on how to set these jumpers.

Pushbutton

The pushbutton is used to either reboot the BACnet Communication Module or temporarily restore the factory defaults. Refer to the section titled Restarting and Resetting the BACnet Communication Module on page 12 for more information on using the pushbutton.

IM 906-2 8

Page 9

Installation

The BACnet Communication Module is available as a factory-installed or a field-installed option. The BACnet Communication Module kit may be ordered via McQuay SelectTools or McQuay Parts. See the Installation Kit section on page 14 for additional information.

Mounting

Contents of the BACnet Communication Module Kit

Installing a new BACnet Communication Module

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.

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

• The BACnet Communication Module circuit board

• Plastic cover for the module

• Three jumpers

• Plug-in connector

• Ferrite-lined plastic enclosure (for noise reduction, if desired)

Install a BACnet Communication Module on the Chiller Unit Controller to incorporate it into an existing BACnet network.

Mounting a BACnet Communication Module

To mount a BACnet Communication Module

DANGER

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

This equipment must be properly grounded. Only personnel that are knowledgeable in the operation of the equipment being controlled must perform connections and service to the Chiller Unit Controller.

1. Remove power from the Chiller Unit Controller.

2. Locate the Serial Card slot on the Chiller Unit Controller (see Figure 3 on page 11 ).

3. Remove the cover from the Serial Card slot if it has not already been removed. Use a small

screwdriver to carefully pry the cover off from one end.

4. Grasp the BACnet Communication Module, with the network connector on the underside. The 8-

pin header must mate to the 8-pin plug in the Chiller Unit Controller. The plug has a guide on each end to direct it into the mating guide on the BACnet Communication Module header. Figure 3 on page 11 details the Serial Card slot with the 8-pin plug that mates to the header on the BACnet Communication Module.

IM 906-2 9

Page 10

Note: This operation relies more on fitting the BACnet Communication Module into the connector

than seeing the connectors mate.

5. Insert the BACnet Communication Module, pointing up, into the slot, rolling it into a level

position as you move it into the slot.

6. Keeping the BACnet Communication Module level, move it in the slot until you feel the

connectors line up.

7. When you feel the connectors align, press the BACnet Communication Module into the plug.

Verify that the module is firmly connected.

8. Install the P1, P2 and P3 jumpers if necessary. This step is only required if it is the first or last

unit on the network. Do not insert the jumpers on intermediate units.

9. Insert the plug-in connector to the BACnet Communication Module.

10. Mount the plastic cover provided with the BACnet Communication Module kit.

11. (Optional) Install the ferrite-lined plastic enclosure on the network cable for noise reduction.

Replacing an Existing BACnet Communication Module

To replace a BACnet Communication Module

DANGER

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

This equipment must be properly grounded. Only personnel that are knowledgeable in the operation of the equipment being controlled must perform connections and service to the Chiller Unit Controller.

1. Remove power from the Chiller Unit Controller.

2. Locate the Serial Card slot on the Chiller Unit Controller (see Figure 3 on page 11).

3. Pull the network cable connector from the BACnet Communication Module.

4. Remove the cover from the Serial Card slot. Use a small screwdriver to carefully pry it off from

one end.

5. Grasp the BACnet Communication Module and gently pull it from the Chiller Unit Controller.

6. Grasp the BACnet Communication Module, with the network connector on the underside. The 8-

pin header must mate to the 8-pin plug in the Chiller Unit Controller. The plug has a guide on each end to direct the BACnet Communication Module into the mating guide on the 8-pin plug. Figure 3 on page 11 shows a detail of the Serial Card slot with the 8-pin plug that mates to the header on the BACnet Communication Module.

Note: This operation relies more on fitting rather than seeing the connectors mate.

7. Insert the BACnet Communication Module, pointing up, into the slot, rolling it into a level

position as you move it into the slot.

8. Keeping the BACnet Communication Module level, move it in the slot until you feel the

connectors line up.

9. When you feel the connectors align, press the BACnet Communication Module into the

connector. Verify that the BACnet Communication Module is firmly connected.

12. Install the P1, P2 and P3 jumpers if necessary. This step is only required if it is the first or last

unit on the network. Do not insert the jumpers on intermediate units.

13. Insert the plug-in connector to the BACnet Communication Module.

14. Replace the cover on the Serial Card slot. Slip the cover over the network connector plug.

15. Insert the network cable connector into the BACnet Communication Module.

16. (Optional) Install the ferrite-lined plastic enclosure on the network cable for noise reduction.

IM 906-2 10

Page 11

Serial Card Slot

J19

8-Pin Connector

Figure 2. Serial Card Slot in Unit Controller

Air Conditioning

Figure 3. Serial Card Slot Detail

Meaning of the Jumpers

Jumpers P1, P2 and P3 are located inside the front opening of the cover.

• Jumper P1 adds a 510-ohm polarization resistance between the negative data line (-) and GND.

• Jumper P2 adds a 120-ohm terminal resistance between the two data lines (+) and (-).

• Jumper P3 adds a 510-ohm polarization resistance between the positive data line (+) and the

+5Vdc internal voltage.

Only install the three jumpers to the unit at the start of the network and the unit at the end of the network. Do not insert the jumpers on the intermediate units. To help reduce noise on the MS/TP line, add the ferrite-lined plastic enclosure, supplied with the BACnet Communication Module kit, to the network cable.

for Serial Card

VG0

ID1

ID2

ID3

ID4

ID5

ID6

ID7

IM 906-2 11

Page 12

Integration

Configuring the Unit Controller

The Chiller Unit Controller and optional BACnet Communication Module are designed, programmed, and configured at the factory. The unit is ready to operate with the default parameter values in the unit controller after you change the default parameters. Refer to the appropriate Chiller Unit Controller Operation Manual for default values and keypad operating instructions. Refer to ED 15062 for descriptions of the available BACnet variables.

Network Connection

BACnet MS/TP Addressing

The BACnet MS/TP Media Access Control (MAC) address is a variable 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.

There are certain parameters that must be set properly to verify communication between the Chiller Unit Controller and the MS/TP network. Table 3 provides details about these addressing parameters. See your system integrator for additional information regarding proper BACnet MS/TP addressing.

Configuring the BACnet Communication Module

The BACnet Communication Module must be configured using the Chiller BACnet Communication Module Configuration Tool (Configuration Tool). The Configuration Tool is also required for downloading new firmware. The Configuration Tool is available as a free download on the www.mcquay.com/Products/Controls/MicroTech II Controls/Application Software page. Refer to Appendix B: Chiller BACnet Communication Module Tool on page 15 for complete details.

DANGER

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

This equipment has exposed electrical connections inside BACnet Communication Module. Contact with charged electrical connection will cause personal injury or death. Only personnel that are knowledgeable in the operation of this equipment must perform connections and service to the BACnet Communication Module.

Restarting and Resetting the BACnet Communication Module

The BACnet Communication Module contains a pushbutton that can be used to restart the BACnet Communication Module or to recall the factory configuration. See Table 4 for the list of parameters that are reset using the pushbutton.

Restarting the BACnet Communication Module

1. Verify that the BACnet Communication Module is installed correctly with the Status LEDs

flashing continuously.

2. Hold the pushbutton for more than 5 seconds and no more than 10 seconds.

3. Around 10 seconds after releasing the button, the Status LEDs will stop flashing and 15 seconds

later the BACnet Communication Module will restart (Status LEDs quickly flashing red-greenred-green…).

IM 906-2 12

Page 13

Resetting Factory Defaults when the Chiller is Off:

1. Unplug network connections from the BACnet Communication Module.

2. Hold down the pushbutton on the BACnet Communication Module.

3. Apply power to the Chiller Unit Controller.

4. Keep the pushbutton pressed for at least 20 seconds.

5. Release the pushbutton once the Status LEDs start to blink red.

6. After three slow red blinks, the LEDs will become green, and then to indicate the command has

been successful, it will rapidly blink dark red three times.

Resetting Factory Defaults when the Chiller is On:

1. Unplug network connections from the BACnet Communication Module.

2. Press the pushbutton for more than five seconds and no more than ten seconds.

3. Release the pushbutton.

4. After another 5 seconds, press and hold the pushbutton again.

5. The status LEDs will stop flashing and then it will flash red quickly.

6. Release the pushbutton when the status LEDs start flashing red slowly.

7. After three slow red blinks, the LEDs will become green, and then, to indicate the command has

been successful, it will rapidly blink dark red three times.

Note: After successfully using the pushbutton, the BACnet Communication Module only retains

the factory-specified default parameters until the next reboot is performed. The BACnet Communication Module will implement the latest user-specified parameters after a reboot has been performed without the pushbutton being pressed.

Table 3 defines the five parameters that are reset to factory defaults when the pushbutton on the BACnet Communication Module has been pressed.

Table 3. Network Parameters That Are Reset Using The Pushbutton

Parameter Name Factory Default (Range)/Description

Device Instance 3000 (0-4194303)/A number that uniquely identifies a device on the

BACnet network.

MS/TP Station Address

0 (0-127)/A number that differentiates the units in the BACnet

MS/TP network.

Max Masters 127 (0-127)/The maximum number of information packages

exchanged, above which the Master unit will give up control (Token) of the network to another Master unit.

Max Info Frames 20 (0-255)/ The Max Master value should match the largest MS/TP

Station Address value to provide maximum system efficiency.

Baud Rate 38400 (9600, 19200, 38400, 76800)/Data transfer speed.

IM 906-2 13

Page 14

Service Information

Test Procedures

If you are not able to communicate with unit via the network:

• Check the network wiring

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

on the network

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

MicroTech II Chiller BACnet Communication Module-MS/TP kit 350147407

IM 906-2 14

Page 15

Appendix A: Chiller BACnet Communication Module Configuration Tool

Introduction

The Chiller BACnet Communication Module Configuration Tool (Configuration Tool) is a Microsoft® Windows® based tool used in conjunction with the MicroTech II BACnet Communication Module for Chiller Unit Controllers. The purpose of the Configuration Tool is to test and configure BACnet addressing parameters for the BACnet Communication Module. The Configuration Tool displays the types and quantity of BACnet Communication Module objects and also what properties are supported. Additionally, it can be used to download new firmware or a new CSV (comma separated variable file), if necessary.

This document assumes you are familiar with BACnet and BACnet terminology and the use of Microsoft Windows. Only qualified personnel familiar with BACnet and BACnet terminology, and the use of Microsoft Windows should configure the BACnet communication module.

The Configuration Tool as a BACnet Device

The Configuration Tool uses standard BACnet commands when communicating via a BACnet network. For example, it issues a ReadProperty or WriteProperty request to the device object (in this case, the Chiller Unit Controller). By default, the Configuration Tool is assigned the device instance

3333. This can be changed using the BACdoor OEM Client configuration dialog described in the BACdoor OEM Client Status window section of this document.

Windows and PC Requirements

Windows Requirements

The Configuration Tool is compatible with Windows 2000, Windows 2003, Windows XP, and Windows Vista operating systems.

BACnet MAC Layer Support

The Configuration Tool supports the following BACnet Media Access Control (MAC) layers:

• BACnet ISO 8802-3 “Ethernet”

• BACnet/IP

• BACnet Master Slave/Token Passing (MS/TP) over RS-485

PC Requirements

An EIA-485 interface is required for use with the Configuration Tool when connecting to a BACnet MS/TP communication module. An RS-485 interface can be achieved by one of the following means:

• Connect an external RS-232 to RS-485 converter to an existing PC serial port.

• Insert an internal RS-485 PC adapter into your PC.

Note: The RS-485 interface is not included with the BACnet Communication Module kit.

It is available through B & B Electronics (www.bb-elec.com).

IM 906-2 15

Page 16

Install and Set up the Configuration Tool

Overview of Components

There are four main components to the Configuration Tool user interface and software:

1. The initial BCM Configuration MAC Layer Select dialog pop-up box.

2. The main application titled “McQuay BACnet Communication Module Configuration Tool” with

four tabs as described in Table 4 below.

Table 4. Overview of BACnet Configuration Tool Tabs

Tab Name Description BACnet Device

BACnet Objects

Test

System

3. The BACdoor OEM Client Status icon and window.

4. The MS/TP MAC Layer Status icon and window – for diagnostic use only.

This majority of the Appendix describes how the Configuration Tool can be used to set BACnet parameters and customize settings for your network. The remainder of the Appendix describes how to use additional features of the Configuration Tool to verify network communications, download BACnet firmware files, and use MAC layer options.

Use this tab to read and write the BACnet properties of the Chiller Unit Controller’s Device Object. The properties include: BACnet LAN type (IP or Ethernet), Device Instance, UDP Port, APDU Timeout, APDU Retries, and Daylight Savings Time. The firmware and application software versions are also displayed, along with a BACnet Communication Module reboot option.

Use this tab to read and configure the BACnet properties of the objects in the BCM device. Clicking the Read button reads all the properties for the BCM object that is selected in the pull-down object list. Any of the values for the writeable properties can be changed on the form and then committed to the BCM by clicking Write. The Write button is only displayed if the object has writeable properties.

Use this table to test the reading of the BACnet properties of all the objects contained in the pull-down object list for the BCM. You must have clicked the Read Object List button before you click Read.

Use this tab to download new firmware or CSV files, reboot the BACnet Communication Module, and read the current firmware version.

Installation and Setup

1. Download the Configuration Tool from www.mcquay.com/Products/Controls/MicroTech II

Controls/Application Software/BCM Configuration Tool Version 1.10 for MicroTech II Chiller Unit Controllers Only.

2. Install the Configuration Tool to your PC (see Windows and PC Requirements above). For

support purposes, it is recommended that you install to the default directory.

3. Verify the BACnet Communication Module is installed in the Serial Slot of the MicroTech II

Chiller Unit Controller. Refer to the Installation section on page 9 of this manual for details.

4. Verify that the RS-485 converter is properly connected properly to the PC, and that the wiring

between the BACnet Communication Module and the RS-485 converter have the correct + and terminals connected.

5. Using the keypad, verify the “Protocol=” on the Network Config menu of the Chiller Unit

Controller is set to BACnet MS/TP. Refer to the appropriate BACnet Communication Module Operation Manual (OM) listed in the Reference Documents section for more information about using the keypad.

6. Double-click on BCMCFG.exe from the folder in which it was installed (see Step 2 above). The

default installation path is C:\Program Files\McQuay\Chiller BCM Configuration Tool.

Launch and use the Configuration Tool to Set Network Parameters

1. Navigate to the BCM Configuration Tool (Start/Programs/McQuay/Chiller BCM Configuration

Tool) or double-click on the desktop icon, if present.

IM 906-2 16

Page 17

2. When the Configuration Tool opens, the BACnet MAC Layer Select dialog box appears as

shown in Figure 4.

a. Select both BACnet MS/TP and No Router options and click OK.

Figure 4. BACnet MAC Layer Select Dialog Box

Note: If you have trouble opening the MS/TP portion of the Configuration Tool, make sure the

COM port you are using on your PC is available and in working order. Then verify that the Configuration Tool is using the same com port. The default COM Port for the Configuration Tool is 1. See the Troubleshooting Guide for more information.

3. Initiate communication between the Configuration Tool and the BACnet Communication Module

by following these steps:

a. Verify that the he McQuay BCM Configuration XP v1.10 BACnet Device appears and

the BACnet Device tab is selected (see Figure 5). The Device tab is the primary location for setting network parameters. A detailed description of each field is provided in Table 6 at the end of this section.

4. Enter the BACnet Communication Module’s current Device Instance in the upper right of the

screen (see Figure 5, box #1). The default value is 3000.

5. Select Read Object List (see Figure 5, box #2). If the Configuration Tools is communicating

with the module, the Configuration Tool counts from 0 to 62 (see box #3 in Figure 5).

IM 906-2 17

Page 18

Figure 5. Initiate Communications

6. After the Configuration Tool has successfully counted from 0 to 62, press the Read button in the

upper left portion of the screen.

a. Verify that the Read/Write Status field counts up to 100%. Once this is complete, the

MS/TP Station Address and Max Master fields become populated with values (as shown in Figure 6).

Figure 6. Configuration Tool Communicating Properly

7. Change MS/TP Station Address (i.e. the BACnet MAC address for the BACnet Communication

Module), Max Master and Max Info Frames as desired. See Table 4 below for default values.

IM 906-2 18

Page 19

Table 5: Configuration Tool Default Values

Property Default Value

Communication Port COM1 Baud Rate 38400 MS/TP Station Address 1 Max Master 127 Max Info Frames 10

Note: The Max Master value should match the largest MS/TP Station Address value to provide

maximum system efficiency. If the largest MS/TP Station Address on the network is not known, use a Max Master value of 127. The Max Master value should always be set equal to or less than 127.

8. Press the Write button in the upper left portion of the screen. The Read/Write Status will count

to 100%.

9. After reaching 100%, press the Reboot button in the lower right portion of screen. Please note

that performing this step reboots the BACnet Communication Module, NOT the Configuration Tool.

10. Verify that the LED behavior on the BACnet Communication Module changes, indicating that a

reboot has occurred.

11. Allow the BACnet Communication Module at least two minutes to reboot, and then close and re -

open the Configuration Tool.

12. Re-establish communication by following these steps (see Figure 7):

a. Enter the Device Instance number in the BCM Device Instance field in the upper left portion

of the screen.

b. Press the Read Object List button and wait until it reaches a value of 62. c. Press the Read button and verify that it reaches a value of 100%.

13. Change Device Instance by following these steps (see Figure 7):

a. Select Enable Device Instance radio button. Performing this action de-activates most of the

fields and allows the Device Instance to be modified.

b. Enter the new Device Instance for the BACnet Communication Module. c. Press the Write button and verify that it reaches a value of 100%. d. Close and re-open the Configuration Tool.

14. Re-establish communications by following these steps (see Figure 7):

a. Enter the new Device Instance for the BACnet Communication Module. b. Press the Read Object List button and wait until it reaches a value of 62. c. Press the Read button and verify that it reaches a value of 100%.

IM 906-2 19

Page 20

Figure 7. Change Device Instance and Re-establish Communications

15. Change the Baud Rate of the BACnet Communication Module, if desired. The default Baud

Rate is 38400. Follow steps a-d below to change the Baud Rate. If the default Baud Rate of 38400 is correct, skip to step 16.

a. Select the desired Baud Rate (from the center of the screen, see Figure 8). b. Press the Write button in the upper left portion of the screen. The Read/Write Status

will count to 100%.

c. After reaching 100%, press the Reboot button in the lower right portion of screen.

Please note that performing this step reboots the BACnet Communication Module, NOT the Configuration Tool.

d. Verify that the LED behavior on the BACnet Communication Module changes,

indicating that a reboot has occurred.

Figure 8. Change Baud Rate

Note: Many computers do not support a baud rate of 76800. The BACnet Communication

Module may become inoperable if the baud rate is changed to this speed and is not supported. Refer to the Resetting Factory Defaults when the Chiller is Off (or On) section in this IM for instructions on how to reset the BACnet Communication Module to default values.

IM 906-2 20

Page 21

Table 6: BACnet Device Tab - Details

Property/Button Description BCM Device Instance Read Object List Button Read Button

Write Button

Default Button

Time Sync Button

Reboot Button

MS/TP Baud Rate MS/TP Station Address

Max Master

Max Info Frames

Enable/Disable Device Instance Write

Device Instance

Object Name Description Location APDU Timeout

APDU Retries Password for Restart

Daylight Savings Time UTC Offset Interval to send WhoIs

Firmware Revision Application Software

Version Alarm Enabled

Alarm Destination Alarm Process ID

Alarm Priorities Problem

Alarm Priorities Fault Alarm Priorities

Warning Metric Units

The Device Instance of the BACnet Communication Module (appears on the top of all tabs). Select the object to read from the drop-down arrow (appears on the top of all tabs). Reads all the properties of the Chiller Unit Controller Device Object. Before clicking the Read button,

verify that the Device Instance at the top of the screen is correct. Writes any value on the BACnet Device tab to the Chiller Unit Controller. Before clicking Write,

verify that the Device Instance at the top of the screen is correct. Resets all values on the BACnet Device tab to their default (i.e. factory) values. The factory settings

are not written to the Chiller Unit Controller until the Write button is clicked. Synchronizes the BACnet Communication Module clock with the current time. Pushing this button

will set the clock in the BCM, but since this is an unacknowledged BACnet command, there will be no feedback when this button is pushed. Use your BACnet front end to verify the date and time.

Restarts the BACnet Communication Module if the Password field matches the Password property of the Chiller Unit Controller’s Device Object.

This variable defines the MS/TP baud rate for the BACnet Communication Module. This is the MS/TP address of the BACnet Communication Module. Each device on the BACnet

network must have a unique MS/TP address. MS/TP Only. This variable specifies the highest possible address for master nodes and must be less

than or equal to 127. MS/TP Only. This variable specifies the maximum number of information frames the BACnet

Communication Module may send before it must pass the token. Allows modification of the Device Instance. Selecting Disable Device Instance Write prevents

modification of the Device Instance. 0-4194303/Device Instance of the BACnet Communication Module. This must be unique throughout

the entire BACnet network. Default=3000. Changes to the Device Instance are made immediately after pressing Write. Upon exiting the Configuration Tool, the last BCM Device Instance is saved. This field will be populated with that Device Instance when the Configuration Tool is re-opened.

This is the Object_Name of the device and must be unique throughout the network. Describes the application running in the BACnet device. This changeable property indicates the physical location of the Chiller Unit. The amount of time, in milliseconds, between retransmissions of an APDU (Application Layer

Protocol Data Unit) requiring acknowledgment for which no acknowledgement has been received. Default=3000milliseconds

The maximum number of times that an APDU shall be retransmitted. Default=3. Allows the BACnet Communication Module to be reinitialized from the network. Default=1234.

Leaving this field blank indicates that no password is required. If this field is modified, a password is then required before a BACnet client can reinitialize the BACnet Communication Module.

Must be set to No for a BACnet client to synchronize the time on the network. Default=No. Difference in minutes of the UTC and local time ( –720 to + 720.) Default=0Min Frequency, in minutes, at which the BACnet Communication Module sends WhoIs Requests.

Default=1Min BACnet Communication Module firmware version.

This is the BACnet Application_Software_Version property of the Device Object. It reflects the current version of the BACnet component of the BCM.

Selecting Yes enables the BACnet Communication Module to send a ConfirmedEventNotification message to a single BACnet device whenever an alarm occurs in the MicroTech II Chiller. This message has an Event Type = Complex Event and has proprietary properties in its Event Values section. Not all BACnet devices can accept this message.

Device Object Instance of the BACnet device that receives the alarm notification Process ID used at the receiving BACnet device to determine the response action to the alarm

notification. May be changed to suit the BAS preference. Priority for Problem Alarms (0-255)

Priority for Fault Alarms (0-255) Priority for Warning Alarms (0-255)

This property is used only with centrifugal chillers. Changing this property does not affect the Present Value property read from the chiller. Selecting Yes converts the Units and Relinquish

Default properties to Metric units. Selecting No converts these properties to English units. The units must also be changed via the unit controller keypad.

IM 906-2 21

Page 22

16. Follow the steps a-e below to change the Configuration Tool’s BACnet addressing parameters,

only if one or both of the following is true:

• The Baud Rate was modified from 38400

• The MSTP Station (MAC) Address was set to 1

The BACdoor OEM Client Status is used to configure the settings of the BCM Configuration Tool (not the Chiller Communication Module). Typically the BACdoor OEM Client Status window can remain minimized in the Task Bar. It is available only for diagnostic purposes and configuration of the BCM Configuration Tool itself (see Figure 10). BACdoor OEM Client Status displays the status of BACnet packets as they are being exchanged between the BCM Configuration Tool, the BACnet Communication Module, and any other BACnet Devices on the network. It also displays a list of all BACnet Devices that initiate BACnet I_Am service packets.

The BACdoor OEM Client Status is separated from the BCM Configuration Tool for two reasons: 1. The BCM Configuration Tool rarely requires changes and 2. To help differentiate the BCM Configuration Tool parameters from the BACnet Communication Module properties.

Note: In order for the Configuration Tool and the BACnet Communication Module to operate

correctly, the program and module must be at the same Baud Rate, have different Device Instance numbers, and also have different MSTP Nodes.

a. Navigate to the BACdoor OEM Client Library icon on the lower right of the

computer screen (this appears when the Configuration Tool is open). See Figure 9.

b. Double click on the BACdoor OEM Client Library icon to open the screen called

BACdoor OEM Client Status and select Configure. Performing this step opens the BACdoor OEM Client Library Configuration screen (see Figure 10), which indicates the BACnet address settings for the Configuration Tool on the computer.

c. From the BACdoor OEM Client Library Configuration screen, change the

Configuration Tool’s BACnet addressing parameters as necessary.

d. When the changes are completed, select OK. e. Close and re-open the Configuration Tool to save the changes.

Figure 9. BACdoor OEM Client Library

Figure 10. BACdoor OEM Client Library Configuration

IM 906-2 22

Page 23

Verify BACnet Communications

The Configuration Tool can also be used to verify that the BACnet Communication Module is successfully communicating data to the network. The following section describes how to use the Test tab for this purpose (see Figure 11).

1. Open the Configuration Tool and navigate to the Test tab.

2. Select the center radio button “ObjectID/ObjectName/Units.”

3. Press the Read button in the upper left-hand portion of the screen. The Read Status will count to 100% while the Object ID, Object Name, and Present Value fields below become populated.

4. After reaching 100%, check the Present Value of the variables to verify that they are reading actual current values (see Figure 11).

Note: Another way to verify BACnet Communication is to record the present values, then

perform a second Read a few minutes later and confirm if some of the temperature measurement values have changed slightly over time.

Figure 11. Reading Present Values using the Test Tab

Download BACnet Firmware Files

New or updated firmware and/or CSV files can be downloaded using the Configuration Tool’s System tab (see Figure 12). Table 9 describes the properties and buttons available on this tab. The steps below describe the downloading process:

1. Go to www.mcquay.com to download file or call the McQuay Controls Customer Support

group at 866-462-7829 to request a copy of the firmware or CSV file.

2. Save the file on the laptop or PC hard drive.

3. Open the BCM Configuration Tool and navigate to the System tab.

4. Select the desired file(s) from the Device’s Flash File options next to the Download button.

5. Click on the Download button.

6. Reboot the BACnet communication module.

7. View the firmware version (see Figure 12).

IM 906-2 23

Page 24

Figure 12. System Tab

Table 7: System Tab Details

Property/Button Description Firmware Version Read Version Button Status bytes % Password Reboot Button

Download Button

Device’s Flash File Radio Buttons:

flash_apps.bin

flash_sys.bin

bcm.csv Local PC File Browse Button

BACnet Communication Module firmware version. Reads the firmware version of the BACnet Communication Module. Indicates the download progress in bytes and as a percentage (%) of the total bytes to be downloaded. Password property of the Device Object. Restarts the BACnet Communication Module if the Password matches the Password property of the

Device Object. Reboot does not restart the Chiller Unit Controller. Writes the PC file from the Local PC File field to the flash_apps.bin or flash_sys.bin firmware file or

the bcm.csv or bcmmap.csv CIT file on the BACnet Communication Module. Indicates which file is to be downloaded to the BACnet Communication Module.

Firmware file for the BACnet Communication Module. This file may change if firmware modifications are made to the BACnet Communication Module. This file does not need to be updated unless instructed by the McQuay Controls group.

Firmware file for the BACnet Communication Module. This file does not need to be updated unless instructed by the McQuay Controls group.

CIT file of the BCM. Contains the location of the file to be downloaded. Allows you to select the file to download. Another option is to type the complete file name into the

Local PC File field.

IM 906-2 24

Page 25

BACnet MS/TP MAC Layer Select Options

The Configuration Tool can be set up so that it bypasses the MAC Layer Select window and automatically opens using with the pre-defined BACnet MAC layer type. This can be accomplished by following these steps:

• Create a file named BACSET.INI in the Windows or WINNT folder using a text editor such

as Notepad. Note: if a file named BACSET.ini already exists, skip this step.

• Place the following line as the first line of the file: [General]

• Place the following line on the second line of the file: MACtype=MSTP

• Save and close the file.

It is recommended that you use the BACnet MS/TP MAC Layer Status portion of the BCM

Configuration Tool for diagnostic purposes only because it can impact BACnet MS/TP operation.

An additional feature of the Configuration Tool, called BACnet MS/TP MAC Layer Status, can be used to display network information packets. The BACnet MS/TP MAC Layer Status window is minimized into the Windows Tool Bar at the bottom of your display screen and is indicated by the

icon. Follow the steps below to use the BACnet MS/TP MAC Layer Select Status feature:

1. Click the icon to make the BACnet MS/TP MAC Layer Status window visible (see Figure 13).

Figure 13. BACnet MS/TP MAC Layer Status Window

2. Select Trace All Messages from the View drop-down menu to expand the information available from the BACnet MS/TP MAC Layer Select (see Figure 14). Minimize the BACnet MS/TP Layer Select during an image upload. The BACnet MS/TP MAC Layer Status expanded window now displays the status of MS/TP packets as they are being exchanged between the BCM Configuration Tool, the BACnet Communication Module, and any other BACnet MS/TP Devices on the network.

Figure 14.MS/TP MAC Layer Status Expanded Window

IM 906-2 25

Page 26

Troubleshooting Guide

Table 10 below summarizes several potential problems and corresponding solutions. Contact the McQuay Controls Customer Support group at 866-4McQuay for additional assistance.

Table 10: Common Problems and Solutions

Error/Condition Problem Solution

You are unable to read/write to the Chiller Unit Controller via the BACnet Communication Module.

Cannot change the Device Instance

When selecting MS/TP for the MAC Layer Selection, you get a series of three errors including: “Error: [5] Access is denied.”, “MS/TP Init Failed (-306)” and “BACLIBinit failed”.

When using the Configuration Tool, you get a “?Write Error [111]?: Timeout at MS/TP Station Address” error when trying to modify the MS/TP Station Address.

This can be due to several reasons such as wiring or setup.

The Device Instance Write property is disabled.

The serial port is already in use by another program or the Configuration Tool is trying to use a serial port that is not present or working.

This could mean that you are trying to write an MS/TP Station Address that already exists.

• Verify the BACnet Communication Module is

installed correctly and the LEDs are functioning correctly.

• Verify the wiring.

• Verify the Chiller Unit Controller is set up to

communicate BACnet using the keypad. Refer to the proper Chiller Unit Controller OM for details on using the keypad.

• Verify connection to the correct MAC Layer Type

(MS/TP).

• Verify that you are attempting to read the correct

Device Instance number.

• Verify the Device Instance for the BACnet

Communication Module is unique on the BACnet network and does not match the Device Instance of the Configuration Tool. Refer to the Error! Reference source not found. section of this document.

• Verify the baud rate of the BCM Configuration

Tool is the same baud rate of the BACnet Communication Module. Also verify the MS/TP device instance is unique.

Select Enable from the BACnet Device tab to enable the Device Instance Write property. You can now change the Device Instance.

Close any programs that are using the serial port and restart the Configuration Tool. If the problem persists, verify that the BCM Configuration Tool is using the correct serial port by following these steps:

• Open the Configuration Tool by selecting BACnet

IP as the MAC Layer Type.

• In the lower right corner of your task bar, click on

the BACdoor OEM Client icon.

• Click Configure.

• Change COM Port to the COM Port you are using

on your PC.

• Restart the BCM Configuration Tool by choosing

MS/TP as the MAC Layer Type.

Change the MS/TP Node Address of the Configuration Tool using the BACdoor OEM Client. This address needs to be unique on the network and is likely set at the address you are trying to write to the BCM.

IM 906-2 26

Page 27

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.

IM 906-2 27