Rockwell Automation 22-COMM-C User Manual

PowerFlex® 22-COMM-B BACnet MS/TP Adapter

Firmware Version 1.xxx User Manual

Important User Information

Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell Automation sales office or online at http:// www.rockwellautomation.com/literature) describes some important differences between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc. is prohibited.

Throughout this manual, when necessary we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may

lead to personal injury or death, property damage, or economic loss.

Important: Identifies information that is critical for successful application and

Allen-Bradley, PowerFlex, DriveExplorer, DriveExecutive, DriveTools SP, and ControlFLASH are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respective companies.

understanding of the product.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequences.

Shock Hazard labels may be located on or inside the equipment (e.g., drive or motor) to alert people that dangerous voltage may be present.

Burn Hazard labels may be located on or inside the equipment (e.g., drive or motor) to alert people that surfaces may be at dangerous temperatures.

Summary of Changes

The information below summarizes the changes made to this manual since its last release (October 2006):

Description of Changes Page(s)

Updated information in the “Related Documentation” section. P-1 In the “Compatible Products” section, added the PowerFlex 4M drive.

NOTE: The 22-COMM-B adapter must have firmware version 1.003 (or later) to be compatible with the PowerFlex 4M drive.

Updated information in the “Using the Optional, External PowerFlex 4-Class HIM” section.

Added the new section “Flash Updating the Adapter.” 3-10 Revised Table 4.A to include the PowerFlex 4M drive. 4-3

1-3

3-2

soc-ii Summary of Changes

Preface About This Manual

Related Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P-1

Rockwell Automation Support. . . . . . . . . . . . . . . . . . . . . . . . P-2

Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . P-2

Chapter 1 Getting Started

Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Compatible Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Status Indicators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Chapter 2 Installing the Adapter

Preparing for an Installation. . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Commissioning the Adapter. . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Connecting the Adapter to the Drive . . . . . . . . . . . . . . . . . . . 2-6

Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

Connecting the Drive/Adapter to the Network . . . . . . . . . . 2-11

Chapter 3 Configuring the Adapter

Configuration Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Using the Optional, External PowerFlex 4-Class HIM . . . . . 3-2

Setting the Device Instance Number . . . . . . . . . . . . . . . . . . . 3-4

Setting a Comm Loss Action . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Setting the Comm Loss Time. . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Setting the Baud Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Resetting the Adapter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Viewing the Adapter Status Using Parameters . . . . . . . . . . 3-10

Flash Updating the Adapter . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Chapter 4 Using BACnet Objects

Understanding BACnet Objects. . . . . . . . . . . . . . . . . . . . . . . 4-1

Basic Drive Operation on the Network . . . . . . . . . . . . . . . . . 4-2

Supported BACnet Objects . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3

ii Table of Contents

Chapter 5 Troubleshooting

Understanding the Status Indicators . . . . . . . . . . . . . . . . . . . 5-1

PORT Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

MOD Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2

NET A Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

NET B Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3

Viewing Adapter Diagnostic Items . . . . . . . . . . . . . . . . . . . . 5-4

Viewing and Clearing Events. . . . . . . . . . . . . . . . . . . . . . . . . 5-5

Appendix A Specifications

Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Regulatory Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Appendix B Adapter Parameters

About Parameter Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Parameter List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Appendix C Protocol Implementation Conformance Statement

(PICS)

Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

BACnet Standardized Device Profile (Annex L). . . . . . . . . . C-1

List all BACnet Interoperability Building Blocks Supported

(Annex K) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Segmentation Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Standard Object Types Supported . . . . . . . . . . . . . . . . . . . . . C-2

Data Link Layer Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Device Address Binding . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Networking Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3

Appendix D Routing Capability for Networked Drives

Glossary

Index

Preface

About This Manual

Topic Page

Related Documentation Rockwell Automation Support P-2 Conventions Used in this Manual P-2

Rockwell Automation Support

Rockwell Automation, Inc. offers support services worldwide, with over 75 sales/support offices, over 500 authorized distributors, and over 250 authorized systems integrators located throughout the United States alone. In addition, Rockwell Automation, Inc. representatives are in every major country in the world.

Local Product Support

Contact your local Rockwell Automation, Inc. representative for:

• Sales and order support

• Product technical training

• Warranty support

• Support service agreements

Technical Product Assistance

For technical assistance, please review the information in Chapter 5,

Troubleshooting first. If you still have problems, then access the

Allen-Bradley Technical Support web site at www.ab.com/support/

abdrives or contact Rockwell Automation, Inc.

Conventions Used in this Manual

This manual provides information about the adapter and using it with PowerFlex 4-Class drives. The adapter can be used with other products that support a DSI™ adapter, such as the DSI External Comms Kit (22-XCOMM-DC-BASE). Refer to the documentation for your product for specific information about how it works with the adapter.

The following conventions are used throughout this manual:

• Parameter names are shown in the format Parameter xx - [*]. The xx

represents the parameter number, and the * represents the parameter name—for example, Parameter 01 - [Mode].

• Menu commands are shown in bold type face and follow the format

Menu > Command. For example, if you read “Select File > Open,” you should click the File menu and then click the Open command.

• The firmware release is displayed as FRN X.xxx. The “FRN”

signifies Firmware Release Number. The “X” is the major release number. The “xxx” is the minor update number.

Chapter 1

Getting Started

The adapter is intended for installation into a PowerFlex 40 or PowerFlex 400 drive and is used for network communication. The adapter can also be installed in a DSI External Comms Kit (22-XCOMM-DC-BASE). This kit enables PowerFlex 4 and PowerFlex 4M drives, which cannot accommodate an internally-mounted adapter, to connect to a BACnet MS/TP network. NOTE: The 22-COMM-B adapter must have firmware version 1.003 (or later) to be compatible with the PowerFlex 4M drive.

Topic Page Topic Page

Components Features 1-2 Quick Start 1-6 Compatible Products 1-3 Status Indicators 1-7 Required Equipment 1-3

1-1 Safety Precautions 1-4

Components

Figure 1.1 Components of the Adapter

➊

➋

LEDs are located on bottom side of adapter board

➌

Item Component Description

Status Indicators Four LEDs that indicate the status of the network connection,

➊

DSI Connector A 20-pin, single-row shrouded male header. An Internal Interface

➋

Terminal Block A 3-pin terminal block with mating 3-pin linear plug connects the

➌

TERM, -BIAS, and

➍

+BIAS Switches

MAC Address

➎

Switches

➍

➎

DSI, and the adapter. Refer to Chapter 5

cable connects to this connector and a connector on the drive.

adapter to the network. Switches for turning on/off the adapter’s internal termination

resistor and bias resistors. See Setting the TERM, -BIAS, and

+BIAS Switches on page 2-4 for details.

Switches for setting the MAC address. See Setting the MAC

Address on page 2-2 for details.

, Troubleshooting.

1-2 Getting Started

Features

The adapter features include:

• Typical mounting in a PowerFlex 40 or PowerFlex 400 drive. The

adapter can also be installed in a DSI External Comms Kit (22-XCOMM-DC-BASE).

• Switches that enable you to:

– Set a MAC address before applying power to the drive.

– Turn on/off the adapter’s built-in termination resistor and bias

resistors for optimizing operation on the network.

• A captive screw secures and grounds the adapter to the drive or,

when mounted in a DSI External Comms Kit, to the kit’s metal enclosure.

• Compatibility with various configuration tools to configure the

adapter and connected drive. The tools include an external PowerFlex 4-Class HIM (22-HIM-A3 or 22-HIM-C2S), and drive-configuration software such as DriveExplorer (version 3.01 or later) or DriveExecutive (version 3.01 or later).

• Status indicators that report the status of drive communications, the

adapter, and network.

• Read and write access to parameters to configure and monitor

parameter values over the network.

• User-defined fault actions to determine how the adapter and

connected drive respond to I/O communication disruptions (Comm Loss Action) on the network.

Getting Started 1-3

Compatible Products

The adapter is compatible with Allen-Bradley PowerFlex 4-Class (Component-Class) drives and other products that support an internal DSI adapter. At the time of publication, compatible products include:

• PowerFlex 4 drives (when used with DSI External Comms Kit)

• PowerFlex 4M drives

• PowerFlex 40 drives

• PowerFlex 400 drives

(1)

The 22-COMM-B adapter must have firmware version 1.003 (or later) to be compatible with PowerFlex 4M drives.

Required Equipment

Equipment Shipped with the Adapter

When you unpack the adapter, verify that the package includes:

❑ One adapter ❑ One 15.24 cm (6 in.) Internal Interface cable ❑ One 3-pin linear plug (plugged into the adapter socket) ❑ One PowerFlex 4-Class DSI (Drive Serial Interface) Network

Communications Adapter Installation Instructions (publication 22COMM-IN002)

(1)

(when used with DSI External Comms Kit)

User-Supplied Equipment

To install and configure the adapter, you must supply:

❑ A small flathead screwdriver ❑ A shielded, twisted wire pair to connect the adapter to the network ❑ A configuration tool, such as:

– PowerFlex 4-Class HIM (22-HIM-A3 or 22-HIM-C2S) – required

to access adapter parameters when not using DriveExplorer or

DriveExecutive software – DriveExplorer software (version 3.01 or later) – DriveExecutive stand-alone software (version 3.01 or later) or

bundled with the DriveTools SP suite (version 1.01 or later) – Third-party network configuration software

1-4 Getting Started

Safety Precautions

Please read the following safety precautions carefully.

ATTENTION: Risk of injury or death exists. The PowerFlex drive may contain high voltages that can cause injury or death. Remove

power from the PowerFlex drive, and then verify power has been discharged before installing or removing an adapter.

ATTENTION: Risk of injury or equipment damage exists. Only personnel familiar with drive and power products and the associated

machinery should plan or implement the installation, start-up, configuration, and subsequent maintenance of the product using an adapter. Failure to comply may result in injury and/or equipment damage.

ATTENTION: Risk of equipment damage exists. The adapter contains ESD (Electrostatic Discharge) sensitive parts that can be

damaged if you do not follow ESD control procedures. Static control precautions are required when handling the adapter. If you are unfamiliar with static control procedures, refer to Guarding Against Electrostatic Damage (publication 8000-4.5.2).

ATTENTION: Risk of injury or equipment damage exists. If the adapter is transmitting control I/O to the drive, the drive may fault when

you reset the adapter. Determine how your drive will respond before resetting an adapter.

ATTENTION: Risk of injury or equipment damage exists. Parameter 02 - [Comm Loss Action] lets you determine the action of

the adapter and connected drive if communications are disrupted. By default, this parameter faults the drive. You can set this parameter so that the drive continues to run. Precautions should be taken to ensure that the setting of this parameter does not create a risk of injury or equipment damage. When commissioning the drive, verify that your system responds correctly to various situations (for example, a disconnected cable).

ATTENTION: Risk of injury or equipment damage exists. Parameter 03 - [Comm Loss Time] lets you determine how long it will take the

adapter to detect network communication losses. By default, this parameter sets the timeout to ten seconds. You can set it so that the duration is shorter, longer, or disabled. When set to disabled, this also disables adapter Parameter 02 - [Comm Loss Action]. Therefore, a communications fault action will be ignored. Take precautions to ensure that the setting does not create a risk of injury or equipment damage. When commissioning the drive, verify that your system responds correctly to various situations (for example, a disconnected cable).

Getting Started 1-5

ATTENTION: Risk of injury or equipment damage exists. When a system is configured for the first time, there may be unintended or

incorrect machine motion. Disconnect the motor from the machine or process during initial system testing.

ATTENTION: Risk of injury or equipment damage exists. The examples in this publication are intended solely for purposes of

example. There are many variables and requirements with any application. Rockwell Automation, Inc. does not assume responsibility or liability (to include intellectual property liability) for actual use of the examples shown in this publication.

1-6 Getting Started

Quick Start

This section is provided to help experienced users quickly start using the adapter. If you are unsure how to complete a step, refer to the referenced chapter.

Step Action Refer to …

1 Review the safety precautions for the adapter. Throughout this manual 2 Verify that the PowerFlex drive is properly installed. Drive User Manual

3 Commission the adapter.

Set a unique MAC address and, depending on where the PowerFlex drive nodes are located on the network, appropriately set the TERM, -BIAS, and +BIAS switches.

4 Install the adapter.

Verify that the PowerFlex drive is not powered. Then, connect the adapter to the drive using the Internal Interface cable. Use the captive screw to secure and ground the adapter to the drive.

When installing the adapter in a DSI External Comms Kit, refer to the 22-XCOMM-DC-BASE Installation Instructions (publication 22COMM-IN001) supplied with the kit.

5 Apply power to the adapter and verify key settings.

A. The adapter receives power from the drive. Verify

that the adapter is installed correctly and then apply power to the drive. The PORT status indicator should be solid green. If it is red, there is a problem. Refer to

Chapter 5

B. Verify/configure key adapter parameters. C. Configure/verify key drive parameters.

6 Connect the adapter to the network.

Verify that the PowerFlex drive is not powered. Then, connect the adapter to the network using a shielded, twisted wire pair.

7 Configure the adapter for your application.

Set adapter parameters for the following functions as required by your application:

• Fault actions

• Baud rate

8 Configure the controller to communicate with the

adapter.

Use the controller’s programming software to program the controller.

, Troubleshooting.

Chapter 2

Installing the Adapter

PowerFlex 4-Class DSI Network Communication Adapter Installation Instructions (publication

22COMM-IN002) and

Chapter 2

Installing the Adapter

Chapter 2 Installing the Adapter

Chapter 2, Installing the Adapter

Chapter 3, Configuring the Adapter

Instructions for your controller’s programming software

Getting Started 1-7

Status Indicators

The adapter uses four status indicators to report its operating status. They can be viewed on the adapter or through the drive cover (Figure 1.2

Figure 1.2 Status Indicators (location on drive may vary)

➊ ➋ ➌

➍

Bottom side

of adapter board

➊ ➋

➌ ➍

Item Name

PORT

➊

MOD

➋

NET A

➌

NET B

➍

After installing the adapter and applying power to the drive, refer to

Start-Up Status Indications

indications and their descriptions.

on page 2-9 for possible start-up status

1-8 Getting Started

Notes:

Chapter 2

Installing the Adapter

This chapter provides instructions for installing the adapter in a PowerFlex 40 or PowerFlex 400 drive. This adapter can also be installed in a DSI External Comms Kit. In this case, refer to the 22-XCOMM-DC-BASE Installation Instructions (publication 22COMM-IN001) supplied with the kit.

Topic Page

Preparing for an Installation Commissioning the Adapter 2-1 Connecting the Adapter to the Drive 2-6 Applying Power 2-9 Connecting the Drive/Adapter to the Network 2-11

2-1

Preparing for an Installation

Before installing the adapter, verify that you have all required equipment. Refer to Required Equipment

on page 1-3.

Commissioning the Adapter

To commission the adapter, you must set a unique MAC address and, depending on where the PowerFlex drive node is located on the network (starting and ending network nodes versus all other node locations), appropriately set the TERM, -BIAS, and +BIAS switches.

Important: New settings are recognized only when power is applied to

the adapter or it is reset. If you change a switch setting, cycle power or reset the adapter to apply the change.

ATTENTION: Risk of equipment damage exists. The adapter contains ESD (Electrostatic Discharge) sensitive parts that can be

2-2 Installing the Adapter

Setting the MAC Address

Set the MAC address using the MAC Address switches (Figure 2.1). Refer to Table 2.A for specific MAC address switch settings.

Important: Each node on the network must have a unique MAC

address. Set the MAC address before power is applied because the adapter uses the MAC address it detects when it first receives power. To change a MAC address, you must set the new value. Then remove and reapply power to (or reset) the adapter.

Figure 2.1 Setting the Adapter MAC Address Switches

MAC Address Switches

(SW1…SW7)

Switches Description Default

SW1 Least Significant Bit (LSB) of MAC Address 0 SW2 Bit 1 of MAC Address 0 SW3 Bit 2 of MAC Address 0 SW4 Bit 3 of MAC Address 0 SW5 Bit 4 of MAC Address 0 SW6 Bit 5 of MAC Address 0 SW7 Most Significant Bit (MSB) of MAC Address 0 SW8 Mode (reserved for future use) — —

TIP: The MAC address switch settings can be verified by viewing Parameter 08 - [MAC Address] or Diagnostic Item number 12

(page 5-4 DriveExplorer software, or DriveExecutive software.

Table 2.A MAC Address Switch Settings (UP = 1 = OPEN)

Address

MAC

SW1 SW2 SW3 SW4 SW5 SW6 SW7

0 0000000 1 1000000 2 0100000 3 1100000

) using an optional, external PowerFlex 4-Class HIM,

Switch Setting

MAC

Address

4 0010000 5 1010000 6 0110000 7 1110000

Mode Switch (SW8) Reserved for future use

UP = 1 = OPEN

Node 0

Switch Setting

SW1 SW2 SW3 SW4 SW5 SW6 SW7

Installing the Adapter 2-3

Table 2.A MAC Address Switch Settings (UP = 1 = OPEN) (Continued)

MAC

Address

SW1 SW2 SW3 SW4 SW5 SW6 SW7

8 0 0 0 1 0 0 0 56 0 0 0 1 1 1 0

9 1 0 0 1 0 0 0 57 1 0 0 1 1 1 0 10 0 1 0 1 0 0 0 58 0 1 0 1 1 1 0 11 1 1 0 1 0 0 0 59 1 1 0 1 1 1 0 12 0011000 13 1011000 14 0111000 15 1111000 16 0 0 0 0 1 0 0 64 0 0 0 0 0 0 1 17 1 0 0 0 1 0 0 65 1 0 0 0 0 0 1 18 0 1 0 0 1 0 0 66 0 1 0 0 0 0 1 19 1 1 0 0 1 0 0 67 1 1 0 0 0 0 1 20 0010100 21 1010100 22 0110100 23 1110100 24 0 0 0 1 1 0 0 72 0 0 0 1 0 0 1 25 1 0 0 1 1 0 0 73 1 0 0 1 0 0 1 26 0 1 0 1 1 0 0 74 0 1 0 1 0 0 1 27 1 1 0 1 1 0 0 75 1 1 0 1 0 0 1 28 0011100 29 1011100 30 0111100 31 1111100 32 0 0 0 0 0 1 0 80 0 0 0 0 1 0 1 33 1 0 0 0 0 1 0 81 1 0 0 0 1 0 1 34 0 1 0 0 0 1 0 82 0 1 0 0 1 0 1 35 1 1 0 0 0 1 0 83 1 1 0 0 1 0 1 36 0010010 37 1010010 38 0110010 39 1110010 40 0 0 0 1 0 1 0 88 0 0 0 1 1 0 1 41 1 0 0 1 0 1 0 89 1 0 0 1 1 0 1 42 0 1 0 1 0 1 0 90 0 1 0 1 1 0 1 43 1 1 0 1 0 1 0 91 1 1 0 1 1 0 1 44 0011010 45 1011010 46 0111010 47 1111010 48 0 0 0 0 1 1 0 96 0 0 0 0 0 1 1 49 1 0 0 0 1 1 0 97 1 0 0 0 0 1 1 50 0 1 0 0 1 1 0 98 0 1 0 0 0 1 1 51 1 1 0 0 1 1 0 99 1 1 0 0 0 1 1 52 0010110 53 1010110 54 0110110 55 1110110

Switch Setting

MAC

Address

SW1 SW2 SW3 SW4 SW5 SW6 SW7

60 0011110 61 1011110 62 0111110 63 1111110

68 0010001 69 1010001 70 0110001 71 1110001

76 0011001 77 1011001 78 0111001 79 1111001

84 0010101 85 1010101 86 0110101 87 1110101

92 0011101 93 1011101 94 0111101 95 1111101

100 0010011 101 1010011 102 0110011 103 1110011

Switch Setting

2-4 Installing the Adapter

Table 2.A MAC Address Switch Settings (UP = 1 = OPEN) (Continued)

MAC

Address

SW1 SW2 SW3 SW4 SW5 SW6 SW7

104 0 0 0 1 0 1 1 116 0 0 1 0 1 1 1 105 1 0 0 1 0 1 1 117 1 0 1 0 1 1 1 106 0 1 0 1 0 1 1 118 0 1 1 0 1 1 1 107 1 1 0 1 0 1 1 119 1 1 1 0 1 1 1 108 0011011 109 1011011 110 0111011 111 1111011 112 0 0 0 0 1 1 1 124 0 0 1 1 1 1 1 113 1 0 0 0 1 1 1 125 1 0 1 1 1 1 1 114 0 1 0 0 1 1 1 126 0 1 1 1 1 1 1 115 1 1 0 0 1 1 1 127 1 1 1 1 1 1 1

Switch Setting

Setting the TERM, -BIAS, and +BIAS Switches

The adapter’s TERM, -BIAS, and +BIAS switches (Figure 2.2) are used to turn on/off its built-in termination resistor and bias resistors.

MAC

Address

SW1 SW2 SW3 SW4 SW5 SW6 SW7

120 0001111 121 1001111 122 0101111 123 1101111

Switch Setting

Figure 2.2 Setting the TERM, -BIAS, and +BIAS Switches

-BIAS Switch (SW2) +BIAS Switch (SW3)

TERM Switch (SW1)

RSRV Switch (SW4) Reserved for future use

Switches Description Default

SW1 Turns on/off the termination resistor Up (Off) SW2 Turns on/off the -bias resistor Up (Off) SW3 Turns on/off the +bias resistor Up (Off) SW4 Reserved (not used) —

Since nodes on a BACnet MS/TP network are typically a mix of Allen-Bradley PowerFlex drives and other brands of building automation products, the network node locations for the PowerFlex drives will determine how their adapter’s TERM, -BIAS, and +BIAS switches should be set.

UP = OFF

Installing the Adapter 2-5

Network with PowerFlex Drives at Starting and/or Ending Nodes

For a network with PowerFlex drives at the starting and/or ending nodes (Figure 2.3 switches to the “Down” (On) position. All other PowerFlex drive network nodes must have these switches set to the “Up” (Off) position.

Figure 2.3 Example Network with PowerFlex Drives at Starting and/or Ending Nodes

), set their 22-COMM-B adapter’s TERM, -BIAS, and +BIAS

Node 1

(Starting Node)

BACnet MS/TP Network

22-COMM-B Adapter Settings for

TERM, -BIAS, and +BIAS Switches

"Down" (On) Positions

Node 2 Node 3 Node 4

"Up" (Off) Positions

Node

(Ending Node)

■ ■ ■

"Down" (On) Positions

Network with PowerFlex Drives at Other Nodes

For a network with PowerFlex drives at other node locations—not starting and/or ending nodes (Figure 2.4), set their 22-COMM-B adapter’s TERM, -BIAS, and +BIAS switches to the “Up” (Off) position. In this network scenario, other brands of building automation products at the starting and/or ending nodes require appropriate termination and bias resistors. Refer to their documentation for details.

Figure 2.4 Example Network with PowerFlex Drives at Other Nodes

Node 1

(Starting Node)

Other Brand

Building Automation

Product

PowerFlex 4-Class Drives

Node 2 Node 3 Node 4

(Ending Node)

Other Brand

Building Automation

■ ■ ■

Node

Product

BACnet MS/TP Network

Requires

Termination and

Bias Resistors

22-COMM-B Settings for TERM, -BIAS, and

+BIAS Switches

Requires

Termination and

Bias Resistors

"Up" (Off) Positions

2-6 Installing the Adapter

Connecting the Adapter to the Drive

PowerFlex 40 Frames B and C, and PowerFlex 400 Frame C

1. Remove power from the drive, and remove the drive cover.

2. Use static control precautions.

3. Mount the adapter on the required special drive cover (ordered

separately; see Figure 2.5 for part numbers).

• Frame B: Do not use the adapter screw; snap the adapter in place.

• Frame C: Use the adapter screw to secure the adapter to the cover.

Important: To properly ground the adapter in Frame B drives,

install the special drive cover onto the drive using both cover fasteners. To ground the adapter in Frame C drives, tighten the adapter’s lower left screw (see

Figure 2.5

recommended torque (0.9 N•m / 8.0 lb•in).

Figure 2.5 Mounting and Grounding the Adapter – PowerFlex 40 Frames B and C,

and PowerFlex 400 Frame C

). In either case, tighten the screw(s) to the

Adapter Mounted on Back of

Required Special Drive Cover

(Frame C cover shown)

PowerFlex 40 Drive (Frame C

shown with cover removed)

0.9 N

(8.0 lb

PowerFlex 40 Frame B -- Part Number 22B-CCB PowerFlex 40 Frame C -- Part Number 22B-CCC

PowerFlex 400 Frame C -- Part Number 22C-CCC

•

in)

Ground for Frame C Drives

For Frame B drives, the lower left

NOTE:

adapter screw does not ground the adapter. To ground the adapter, install the special drive cover onto the drive using both cover fasteners.

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