Rockwell Automation 20-COMM-H User Manual

20-COMM-H RS-485 HVAC Adapter

Firmware Version 2.xxx

Modbus RTU

Metasys N2

Siemens Building Technologies P1 FLN

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 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.

PowerFlex, SMC Flex, DriveExplorer, DriveExecutive, DPI, DriveTools SP, and SCANport are either trademarks or registered trademarks of Rockwell Automation, Inc.

Metasys is a trademark of Johnson Controls, Inc. Modbus is a trademark of Schneider Automation.

P1 FLN is a trademark of Siemens Building Technologies.

Windows and Microsoft are registered trademarks of Microsoft Corporation.

20-COMM-H RS-485 HVAC Adapter User Manual

Summary of Changes

The information below summarizes the changes made to this manual since its last release (March 2004):

Description of Changes	Page
Reformatted document from half size (5.5 x 8.5 in.) to full size (8.5 x 11 in.)	Throughout
	manual
Added SMC Flex to the list of compatible products, and Metasys N2 is compatible with	1-2
PowerFlex 700VC drive.
Added new Adapter Modbus Register Map section.	4-2
Included information about using Modbus RTU mode to access 16-bit and 32-bit	4-10 and
parameters.	4-12
Added new Adapter Parameter Direct Access section.	4-13
Added new Metasys N2 Device Identity subsection.	5-1
Added new “Reference Setup Examples” subsection.	5-4
Added tip about configuring Analog Data Integers (ADIs).	5-9
Added Flashing Red/Green MOD status indicator information.	8-3
Added new Parameter 32 - [RTU Param Mode] to select the 16-bit default mode or	B-4
optional 32-bit mode in which the adapter operates.

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		Table of Contents
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 1-2
	Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 1-3
	Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 1-3
	Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 1-5
	Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 1-6
Chapter 2	Installing the Adapter
	Preparing for an Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 2-1
	Commissioning the Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 2-1
	Connecting the Adapter to the Drive. . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 2-3
	Connecting the Adapter to the Network . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 2-6
	Applying Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 2-7
Chapter 3	Configuring the Adapter
	Configuration Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-1
	Using the PowerFlex 7-Class HIM . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-2
	Setting the Node Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-3
	Setting the Network Data Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-3
	Setting the Network Parity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-4
	Setting Stop Bits (Modbus RTU only) . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-4
	Setting the I/O Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-5
	Setting a Network Time-out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-6
	Setting a Fault Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-7
	Resetting the Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-8
	Viewing the Adapter Status Using Parameters . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 3-9
	Flash Updating the Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . 3-10
Chapter 4	Using Modbus RTU
	Understanding Modbus RTU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 4-1
	Adapter Modbus Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 4-2
	Using the Modbus RTU Point Map for I/O. . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 4-4
	Accessing Drive Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 4-9
	Using Broadcast Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . 4-12
	Adapter Parameter Direct Access . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . 4-13
Chapter 5	Using Metasys N2
	Understanding Metasys N2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 5-1
	Using the Metasys N2 Point Map for I/O . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . . . . 5-3
	Using Metasys Configurable Objects to Access Parameters. . . . . . .	. . . . . . . . . . . . . . . . 5-8

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Chapter 6	Using Siemens Building Technologies P1 FLN
	Understanding Siemens Building Technologies P1 FLN . . . . . . . . . . . . . . . . . . . . . . . . .		6-1
	Using the P1	FLN Point Map for I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6-5
	Using the P1	FLN Point Map to Access Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6-9

Chapter 7	Using Datalinks with All Protocols
	Using Datalinks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7-1
	Using Datalinks with Modbus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7-3
	Using Datalinks with Metasys N2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7-4
	Using Datalinks with Siemens P1 FLN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7-5

Chapter 8	Troubleshooting
	Understanding the Status Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8-1
	PORT Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8-2
	MOD Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8-2
	NET A Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8-3
	NET B Status Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8-3
	Viewing Adapter Diagnostic Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8-4
	Viewing and Clearing Events. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8-6

Appendix A	Specifications
	Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	A-1
	Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	A-1
	Mechanical. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	A-1
	Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	A-1
	Regulatory Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	A-2

Appendix B	Adapter Parameters
	Parameter List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	B-1
Appendix C	Logic Command/Status Words
	PowerFlex 7-Class Drives (except PowerFlex 700S) . . . . . . . . . . . . . . . . . . . . . . . . . . . .	C-1
	PowerFlex 700S Drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	C-3

Glossary

Index

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Preface

About This Manual

Topic	Page
Related Documentation	P-1
Rockwell Automation Support	P-2
Conventions Used in This Manual	P-2

Related Documentation

For:	Refer to:	Publication
DriveExplorer™	http://www.ab.com/drives/driveexplorer, and	—
	DriveExplorer online help (installed with the software)
DriveTools™ SP (includes	http://www.ab.com/drives/drivetools, and	—
DriveExecutive™)	DriveExecutive online help (installed with the software)
HIM	HIM Quick Reference	20HIM-QR001
PowerFlex® 70/70EC Drive	PowerFlex 70 User Manual	20A-UM001
	PowerFlex 70/700 Reference Manual	PFLEX-RM001
	PowerFlex 70EC/700VC Reference Manual	PFLEX-RM004
PowerFlex® 700/700VC Drive	PowerFlex 700 User Manual	20B-UM001
PowerFlex® 700 Series B Drive	PowerFlex 700 Series B User Manual	20B-UM002
	PowerFlex 70/700 Reference Manual	PFLEX-RM001
	PowerFlex 70EC/700VC Reference Manual	PFLEX-RM004
PowerFlex® 700H Drive	PowerFlex 700H Installation Instructions	PFLEX-IN006
	PowerFlex 700H Programming Manual	20C-PM001
PowerFlex® 700S Drive	PowerFlex 700S with Phase I Control User Manual	20D-UM001
(Frames 1 through 6)	PowerFlex 700S with Phase II Control User Manual	20D-UM006
	PowerFlex 700S Reference Manual	PFLEX-RM002
PowerFlex® 700S Drive	PowerFlex 700S Installation Instructions	PFLEX-IN006
(Frames 9 and higher)	PowerFlex 700S with Phase I Control User Manual	20D-UM001
	PowerFlex 700S with Phase II Control User Manual	20D-UM006
	PowerFlex 700S Reference Manual	PFLEX-RM002
PowerFlex® 700L Drive	PowerFlex 700L User Manual	20L-UM001
Modbus RTU Protocol Specification	www.modicon.com/techpubs/TechPubNew	PI_MBUS_300.pdf

You can view or download publications at www.literature.rockwellautomation.com. To order paper copies of technical documentation, contact your local Rockwell Automation distributor or sales representative.

To find your local Rockwell Automation distributor or sales representative, visit www.rockwellautomation.com/locations.

For information such as firmware updates or answers to drive-related questions, go to the Drives Service & Support web site at www.ab.com/ support/abdrives and click on the “Downloads” or “Knowledgebase” link.

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P-2 About This Manual

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 through the United States alone. In addition, Rockwell Automation, Inc. representatives are in every major country in the world.

Conventions Used in This

Manual

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 8, 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.

The following conventions are used throughout this manual:

•Parameter names are shown in the format Parameter xx - [*]. The xx represents the parameter number. The * represents the parameter name— for example Parameter 01 - [DPI Port].

•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.

•This manual provides information about the adapter and using it with PowerFlex 7-Class (Architecture-Class) drives. The adapter can be used with other products that support a DPI™ adapter, such as SMC™ Flex. Refer to the documentation for your product for specific information about how it works with the adapter.

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Chapter 1

Getting Started

The adapter is a communication option intended for installation into a PowerFlex 7-Class drive. It can also be used with other Allen-Bradley products that support a DPI™ (Drive Peripheral Interface) adapter.

Topic	Page
Components	1-1
Features	1-2
Compatible Products	1-2
Required Equipment	1-3
Safety Precautions	1-3
Quick Start	1-5
Status Indicators	1-6

Components Figure 1.1 Components of the Adapter

Item	Part	Description
	Status Indicators	Four LEDs that indicate the status of the DPI, the adapter, and
		network connection. Refer to Chapter 8, Troubleshooting.
	DPI Connector	A 20-pin, single-row shrouded male header. An Internal Interface
		cable is connected to this connector and a connector on the
		drive.
	Terminal Block	A 6-screw terminal block connects the adapter to the network.
	Node Address Switches	Two switches set the node address.
	Network Selector Switch	Switch selects the network protocol to which the adapter
		operates.

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1-2 Getting Started

Features

The adapter features include:

• Typical mounting in a PowerFlex 7-Class drive using captive screws to

secure and ground the adapter to the drive.

• Compatibility with various configuration tools to configure the adapter

and connected drive. The tools include the PowerFlex HIM on the drive,

and drive-configuration software such as DriveExplorer (version 2.01 or

higher) or DriveExecutive (version 3.01 or higher).

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

adapter, and network. They are visible when the drive cover is open or

closed.

• Parameter-configurable I/O (Logic Command/Reference and up to four

pairs of Datalinks) to meet application requirements.

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

drive respond to communication disruptions on the network.

• Switches to allow setting a node address before applying power to the

drive. Alternatively, you can disable the switches and use a parameter to

configure the node address.

• A switch lets you select from the following three network protocols:

–

Modbus™ RTU

–

Metasys™ N2

– Siemens Building Technologies P1 FLN™

• Available read/write access to parameters, allowing parameter values to

be configured and monitored over the network.

• Support for DPI routing, enabling access to any networked PowerFlex

7-Class drive (with 20-COMM-H adapter) using DriveExplorer (version

2.01 or higher) to monitor and configure that drive and its connected

peripherals.

Compatible Products

DPI is a second generation peripheral communication interface. The adapter

is compatible with Allen-Bradley PowerFlex 7-Class drives and other

products that support DPI. At the time of publication, compatible products

include:

Network

Compatible PowerFlex Drives

SMC

Protocol

70

700EC

700VC

700H

700S

7000

Flex

Modbus RTU

Metasys N2

Siemens P1 FLN

The PowerFlex 70/700 are used for examples in this manual. Refer to a DPI

Host product’s user manual for additional information.

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Getting Started	1-3

Required Equipment	Equipment Shipped with the Adapter
	When you unpack the adapter, verify that the package includes:
	One adapter
	A 2.54 cm (1 in.) and a 15.24 cm (6 in.) Internal Interface cable (only
	one cable is needed to connect the adapter to the drive)

User-Supplied Equipment

To install and configure the adapter, you must supply:

A small flathead screwdriver

Network-specific cable to connect the adapter to the network. Refer to the network-specific documentation for the cable recommendations and requirements.

Configuration tool, such as:

	– PowerFlex 7-Class HIM (20-HIM-*)
	– DriveExplorer (version 2.01 or higher)
	– DriveExecutive stand-alone software (version 3.01 or higher) or
	bundled with the DriveTools SP suite (version 1.01 or higher)
	– Third-party network configuration software
	A PC connection to the network
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 all 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. Read and understand this entire manual before proceeding. 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.

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1-4 Getting Started

!

!

!

!

!

ATTENTION: Risk of injury or equipment damage exists.

Parameter 15 - [Comm Flt 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 11 - [Network Timeout] 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. It can be set so that the duration is shorter, longer, or disabled. 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).

ATTENTION: Risk of injury or equipment damage exists. DPI or SCANport host products must not be directly connected via 1202 cables. Unpredictable behavior due to timing and other internal procedures can result if two or more hosts are connected in this manner.

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.

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Getting Started	1-5

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.		Chapter 2,
		Select the network protocol using the adapter Network Selector		Installing the Adapter
		switch. Set a unique node address using the adapter Node
		Address switches or set both switches to “0” and configure the
		node address later using an adapter parameter.
	4	Install the adapter.		Chapter 2,
		Verify that the PowerFlex drive and network are not powered.		Installing the Adapter
		Then, connect the adapter to the network using a network-specific
		cable and to the drive using the Internal Interface cable. Use the
		captive screws to secure and ground the adapter to the drive.
	5	Apply power to the adapter.		Chapter 2,
		A. The adapter receives power from the drive. Verify that the		Installing the Adapter
			adapter and network are installed correctly and then turn on the
			network and apply power to the drive. The status indicators
			should be green. If they flash red, there is a problem. Refer to
			Chapter 8, Troubleshooting.
		B. Configure/verify key drive parameters.
	6	Configure the adapter for your application.		Chapter 3,
		Set adapter parameters for the following functions as required by		Configuring the Adapter
		your application:
		• Node address, data rate, and parity
		•	I/O configuration
		•	Fault actions
	7	Set up the master device to communicate with the adapter.		Instruction manual for
		Use a network tool to configure the master device on the network.		your network tool

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1-6 Getting Started

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)

Item	Name
	PORT
	MOD
	NET A
	NET B

After installing the adapter and applying power to the drive, refer to Start-Up Status Indications on page 2-7 for possible start-up status indications and their descriptions.

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Chapter 2

Installing the Adapter

This chapter provides instructions for installing the adapter in a PowerFlex 7-Class drive.

Topic	Page
Preparing for an Installation	2-1
Commissioning the Adapter	2-1
Connecting the Adapter to the Drive	2-3
Connecting the Adapter to the Network	2-6
Applying Power	2-7

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 node address and select a
	network protocol.
	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 activate the changes.
	!		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).

Important: To guard against device malfunction, it is recommended wear a grounding wrist strap when installing the adapter.

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2-2 Installing the Adapter

1.Set the adapter’s node address by rotating the node address switches to the desired value for each digit.

Important: Each node on the network must have a unique address.

Figure 2.1 Setting the Node Address

2	3		2	3
1		4	1	4
0		5	0	5
9		6	9	6
8	7		8	7

Setting		Description
01	– 99	Node address used by the adapter.
00	(Default)	If network protocols are capable of handling a node address of 0 or node
		addresses higher than 99, these addresses can be configured by setting the
		switches to 00 and then setting Parameter 03 - [Net Addr Cfg] to the
		desired network node address.

2.Set the network protocol switch.

Figure 2.2 Setting the Network Protocol

RTU

N2

P1

Setting	Description
RTU (Default)	Modbus RTU
N2	Metasys N2
P1	Siemens Building Technologies P1 FLN

The switch settings can be verified using a PowerFlex HIM, DriveExplorer software, or DriveExecutive software, and viewing Diagnostic Device Item numbers 40-42 (page 8-5).

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Installing the Adapter	2-3

Connecting the Adapter to the Drive

ATTENTION: Risk of injury or death exists. The PowerFlex

!drive may contain high voltages that can cause injury or death.

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

1.Remove power from the drive and network.

2.Use static control precautions.

3.Remove the drive cover or open the drive door.

4.Connect the Internal Interface cable to the DPI port on the drive and then to the DPI connector on the adapter (see Figure 2.3).

5.Secure and ground the adapter to the drive (see Figure 2.4) by doing the following:

–On a PowerFlex 70 drive, fold the Internal Interface cable behind the adapter and mount the adapter on the drive using the four captive screws.

–On a PowerFlex 700, PowerFlex 700H or PowerFlex 700S drive, mount the adapter on the drive using the four captive screws.

Important: Tighten all screws to properly ground the adapter. Recommended torque is 0.9 N•m (8.0 lb•in).

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2-4 Installing the Adapter

Figure 2.3 DPI Ports and Internal Interface Cables

20-COMM-H Adapter

PowerFlex 70 - All Frames

PowerFlex 700 Frames 0 and 1	PowerFlex 700 Frames 2 and Larger
PowerFlex 700S Frames 0 and 1	PowerFlex 700S Frames 2 through 6

HIM panel opens to allow access to DPI interface. To open panel, remove screws on left side of HIM panel and swing open.

X2

X1

PowerFlex 700H Frames 9 and Larger

PowerFlex 700S Frames 9 and Larger

Item

Description

15.24 cm (6 in.) Internal Interface cable

DPI Connector

Ethernet cable

2.54 cm (1 in.) Internal Interface cable

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Installing the Adapter	2-5

Figure 2.4 Mounting and Grounding the Adapter

0.9 N•m

(8.0 lb•in)

4 Places

PowerFlex 70 - All Frame Sizes

(Adapter mounts in drive.)

0.9 N•m

(8.0 lb•in)

4 Places

Drive

Adapter

Internal Interface Cable folded behind the adapter and in front of the drive.

Ground Tab Detail

Verify metal ground tab is bent 90° and is under the adapter before tightening screw. After tightening the screw, verify continuity exists between the head of the screw and drive ground.

PowerFlex 700 Frames 0 and 1	PowerFlex 700 Frames 2 and Larger
PowerFlex 700S Frames 0 and 1	PowerFlex 700S Frames 2 through 6
(Adapter mounts on door.)	(Adapter mounts in drive.)
	Ground Tab Detail

X2

X1

0.9 N•m

(8.0 lb•in)

4 Places

PowerFlex 700H Frames 9 and Larger PowerFlex 700S Frames 9 and Larger (Adapter mounts behind HIM panel.)

Verify metal ground tab is bent 90° and is under the adapter before tightening screw. After tightening the screw, verify continuity exists between the head of the screw and drive ground.

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2-6 Installing the Adapter

Connecting the Adapter to the Network

ATTENTION: Risk of injury or death exists. The PowerFlex

!drive may contain high voltages that can cause injury or death.

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

1.Remove power from the network and drive.

2.Use static control precautions.

3.Connect an RS-485 cable to the network, and route it through the bottom of the PowerFlex drive (Figure 2.4).

4.Connect a six-pin linear plug to the RS-485 cable. (See Figure 2.5 for the terminal definitions.)

Figure 2.5 Typical Network Connections

	Node 1			Node 2			Node "n"
TERMA	B	COM SHIELDGND	TERMA	B	COM SHIELDGND	TERMA	B	COM SHIELDGND

Terminal

Signal

Function

TERM

Termination (1)

Signal RC Termination

A

Signal A

TxRxD-

B

Signal B

TxRxD+

COM

Common

Signal Common

SHIELD

Shield

Shield RC Termination

GND

Ground (2)

Shield GND Termination

(1)Jumper terminals TERM and A on the adapter at end of the RS-485 network. This enables a built-in RC termination network on the adapter.

(2)The shield must be grounded at a single point on the network (jumper terminals SHIELD and GND).

A 3-wire network using Belden 3106A cable or equivalent is recommended for Modbus RTU applications and shown in Figure 2.3 above. A 2-wire network using Belden 3105A cable or equivalent (COM terminal is not connected) can also be used for most applications. However, a 3-wire network is more robust in noisy environments.

For Metasys N2 or Siemens P1 FLN applications, refer to published guidelines from Johnson Controls or Siemens Building Technologies respectively.

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Installing the Adapter	2-7

Applying Power

ATTENTION: Risk of equipment damage, injury, or death

!exists. Unpredictable operation may occur if you fail to verify

that parameter settings are compatible with your application. Verify that settings are compatible with your application before applying power to the drive.

Install the drive cover or close the drive door, and apply power to the drive. The adapter receives its power from the connected drive. When you apply power to the adapter for the first time, its topmost “PORT” status indicator should be steady green after an initialization. If it is red, there is a problem. Refer to Chapter 8, Troubleshooting.

Start-Up Status Indications

Status indicators for the drive and communications adapter can be viewed on the front of the drive (Figure 2.6) after power has been applied. Possible start-up status indications are shown in Table 2.A.

Figure 2.6 Drive and Adapter Status Indicators (location on drive may vary)

PORT

MOD

NET A

NET B

STS

Table 2.A Drive and Adapter Start-Up Status Indications

Item	Name	Color	State		Description
				Drive	STS Indicator

STS (Status)

Green	Flashing	Drive ready but not running, and no faults are present.
	Steady	Drive running, no faults are present.
Yellow	Flashing,	An inhibit condition exists – the drive cannot be started.
	Drive Stopped	Check drive Parameter 214 - [Start Inhibits].
	Flashing, Drive	An intermittent type 1 alarm condition is occurring.
	Running	Check drive Parameter 211 - [Drive Alarm 1].
	Steady,	A continuous type 1 alarm condition exists. Check drive
	Drive Running	Parameter 211 - [Drive Alarm 1].
Red	Flashing	A fault has occurred.
	Steady	A non-resettable fault has occurred.

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2-8 Installing the Adapter

Item	Name	Color	State		Description
				Adapter	Status Indicators
	PORT	Green	Flashing		Normal Operation. The adapter is establishing an I/O
					connection to the drive. It will turn solid green or red.
			Steady		Normal Operation. The adapter is properly connected
					and communicating with the drive
	MOD	Green	Flashing		Normal Operation. The adapter is operating but is not
					transferring I/O data.
			Steady		Normal Operation. The adapter is operating and
					transferring I/O data.
	NET A	Green	Flashing		Normal Operation. The adapter is properly connected
					but does not have an I/O connection.
			Steady		Normal Operation. The adapter is properly connected
					and communicating on the network.
	NET B	Green	Off		Normal Operation. The adapter is properly connected
					but is idle.
			Flashing		Normal Operation. The adapter is properly connected
					and transmitting data packets on the network.

Configuring/Verifying Key Drive Parameters

The PowerFlex 7-Class drive can be separately configured for the control and Reference functions in various combinations. For example, you could set the drive to have its control come from a peripheral or terminal block with the Reference coming from the network. Or you could set the drive to have its control come from the network with the Reference coming from another peripheral or terminal block. Or you could set the drive to have both its control and Reference come from the network.

The following steps in this section assume that the drive will receive the

Logic Command and Reference from the network.

1.Use drive Parameter 090 - [Speed Ref A Sel] to set the drive speed Reference to “22” (DPI Port 5).

2.If digital inputs are not used, change drive Parameters 361 - [Dig In1 Sel] through 366 - [Dig In6 Sel] to “0” (Not Used).

3.Verify that drive Parameter 213 - [Speed Ref Source] is reporting that the source of the Reference to the drive is “22” (DPI Port 5). This ensures that any Reference commanded from the network can be monitored by using drive Parameter 002 - [Commanded Speed]. If a problem occurs, this verification step provides the diagnostic capability to determine whether the drive/adapter or the network is the cause.

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Chapter 3

Configuring the Adapter

This chapter provides instructions and information for setting the parameters in the adapter.

Topic	Page
Configuration Tools	3-1
Using the PowerFlex 7-Class HIM	3-2
Setting the Node Address	3-3
Setting the Network Data Rate	3-3
Setting the Network Parity	3-4
Setting Stop Bits (Modbus RTU only)	3-4
Setting the I/O Configuration	3-5
Setting a Network Time-out	3-6
Setting a Fault Action	3-7
Resetting the Adapter	3-8
Viewing the Adapter Status Using Parameters	3-9
Flash Updating the Adapter	3-10

For a list of parameters, refer to Appendix B, Adapter Parameters. For definitions of terms in this chapter, refer to the Glossary.

Configuration Tools	The adapter stores parameters and other information in its own non-volatile
	memory. You must, therefore, access the adapter to view and edit its
	parameters. The following tools can be used to access the adapter
	parameters:
	Tool	Refer to…
	PowerFlex HIM	page 3-2
	DriveExplorer Software	http://www.ab.com/drives/driveexplorer, or
	(version 2.01 or higher)	DriveExplorer online help (installed with the software)
	DriveExecutive Software	http://www.ab.com/drives/drivetools, or
	(version 3.01 or higher)	DriveExecutive online help (installed with the software)

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3-2 Configuring the Adapter

Using the PowerFlex 7-Class

HIM

If your drive has either an LED or LCD HIM (Human Interface Module), it can be used to access parameters in the adapter as shown below. It is recommended that you read through the steps for your HIM before performing the sequence. For additional information, refer to your PowerFlex Drive User Manual or the HIM Quick Reference card.

Using an LED HIM

Step		Key(s)	Example Screens
1.	Press ALT and then Sel (Device) to display		Device
	the Device Screen.	ALT	Sel
2.	Press the Up Arrow or Down Arrow to scroll		or
	to the adapter. Letters represent files in the
	drive, and numbers represent ports. The
	adapter is usually connected to port 5.

3.Press the Enter key to enter your selection. A parameter database is constructed, and then the first parameter is displayed.

4.Edit the parameters using the same techniques that you use to edit drive parameters.

Using an LCD HIM

Step		Key(s)				Example Screens
1.	In the main menu, press the Up Arrow or
	Down Arrow to scroll to Device Select.	or					F->	Stopped		Auto
2.	Press Enter to enter your selection.							0.00	Hz
							Main Menu:
3.	Press the Up Arrow or Down Arrow to scroll
		or					Diagnostics
	to the adapter (20-COMM-H).						Parameter
4.	Press Enter to select the adapter. A						Device Select
	parameter database is constructed, and
	then the main menu for the adapter is						Port 5 Device
	displayed.						20-COMM-H
5.	Edit the parameters using the same						Main Menu:
	techniques that you use to edit drive						Diagnostics
	parameters.						Parameter
							Device Select

NOTE: LCD HIM screens are shown throughout this chapter for example configuration procedures.

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Configuring the Adapter	3-3

Setting the Node Address	If the Node Address switches on the adapter are set to “00,” the value of
	Parameter 03 - [Net Addr Cfg] determines the node address.
	1. Set the value of Parameter 03 - [Net Addr Cfg] to a unique node

address.

Figure 3.1 Example Net Addr Cfg 1 Screen

Port 5 Device			Default = 1
20-COMM-H
Parameter #: 03
Net Addr Cfg
1		0 <> 247

2. Reset the adapter (see Resetting the Adapter on page 3-8). The actual node address is then displayed by Parameter 04 - [Net Addr Act].

Setting the Network Data Rate The data rate at which the adapter operates varies based on the type of network and your network configuration. Refer to the following table.

Network	Possible Data Rates
Modbus RTU	4800, 9600, 19200, 38400
Metasys N2	9600
Siemens Building Technologies P1 FLN	4800, 9600

1.Set the value of Parameter 05 - [Net Rate Cfg] to the data rate at which your network is operating.

Figure 3.2 Example Net Rate Cfg Screen

Port 5 Device			Value	Baud
20-COMM-H			0	4800
			1	9600 (default)
Parameter #: 05
			2	19200
Net Rate Cfg
			3	38400
1
9600

2.Reset the adapter (see Resetting the Adapter on page 3-8). The actual data rate is then displayed by Parameter 06 - [Net Rate Act].

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3-4 Configuring the Adapter

Setting the Network Parity

Setting Stop Bits (Modbus RTU only)

The parity that the adapter uses to verify data integrity varies based on the type of network and your network configuration. Refer to the following table.

Network	Possible Types of Parity
Modbus RTU	None, Even, or Odd
Metasys N2	None
Siemens Building Technologies P1 FLN	None

1.Set the value of Parameter 07 - [Net Parity Cfg] to the type of parity that is used on the network.

Figure 3.3 Example Network Parity Screen

Port 5 Device			Value	Type of Parity
20-COMM-H			0	None (default)
			1	Odd
Parameter #: 07
			2	Even
Net Parity Cfg
0
None

2.Reset the adapter (see Resetting the Adapter on page 3-8). The actual network parity is then displayed by Parameter 08 - [Net Parity Act].

Parameter 30 - [Stop Bits Cfg] enables you to set 1 or 2 stop bits for the Modbus RTU network protocol. When the adapter rotary switch is set to “N2” or “P1,” the Stop Bits Cfg value is ignored and does not transfer to read-only Parameter 09 - [Stop Bits Act] on power-up or reset (N2 and P1 are fixed at 1 stop bit).

1.Set the value of Parameter 30 - [Stop Bits Cfg].

Figure 3.4 Example Stop Bits Screen

Port 5 Device			Value	Type of Stop Bit
20-COMM-H			0	1-bit (default)
			1	2-bits
Parameter #: 30
Stop Bits Cfg
0
1-bit

2.Reset the adapter (see Resetting the Adapter on page 3-8). The actual stop bits is then displayed by Parameter 09 - [Stop Bits Act].

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Configuring the Adapter	3-5

Setting the I/O

Configuration

The I/O configuration determines the data that is sent to and from the drive. Logic Command/Status, Reference/Feedback, and Datalinks may be enabled or disabled. A “1” enables the I/O. A “0” disables the I/O.

1.Set the bits in Parameter 16 - [DPI I/O Cfg].

Figure 3.5 Example DPI I/O Cfg Screen

Port 5 Device

20-COMM-H

Parameter #: 16 DPI I/O Cfg

x x x x x x x x x x x 0 0 0 0 Cmd/Ref b00

Bit	Description
0	Logic Command/Reference (Default)
1	Datalink A
2	Datalink B
3	Datalink C (not used with Metasys N2
4	Datalink D (not used with Metasys N2
5 - 15	Not Used

Bit 0 is the right-most bit. In Figure 3.5, it is highlighted and equals “1.”

2.If Logic Command/Reference is enabled, configure the parameters in the drive to accept the Logic Command and Reference from the adapter. For example, set Parameter 90 - [Speed Ref A Sel] in a PowerFlex 70 or 700 drive to “22” (DPI Port 5) so that the drive uses the Reference from the adapter. Also, verify that the mask parameters (for example, Parameter 276 - [Logic Mask]) in the drive are configured to receive the desired logic from the adapter. Refer to the documentation for your drive for details.

3.If you enabled one or more Datalinks, configure parameters in the drive to determine the source and destination of data in the Datalink(s). For example, configure the Datalinks in PowerFlex 70 and 700 drives by setting Parameters 300 - [Data In A1] to 317 - [Data Out D2]. Also, ensure that this adapter is the only adapter using the enabled Datalink(s).

4.Reset the adapter (see Resetting the Adapter on page 3-8).

The adapter is ready to send and receive I/O. The following chapters provide information about basic data transfer for each type of protocol.

Network	Refer to…
Modbus RTU	Chapter 4, Using Modbus RTU
Metasys N2	Chapter 5, Using Metasys N2
Siemens Building Technologies P1 FLN	Chapter 6, Using Siemens Building Technologies P1 FLN

For details about using Datalinks for all types of networks, refer to Chapter 7, Using Datalinks with All Protocols.

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3-6 Configuring the Adapter

Setting a Network Time-out The network timeout sets an interval within which the adapter must communicate with its master. If this time is exceeded, the adapter determines a loss of network communications has occurred and responds with the action specified in Parameter 15 - [Comm Flt Action].

By default, the timeout is set to ten (10) seconds. You can increase or decrease this value. Alternatively, you can set the value to zero (0) so that the adapter does not detect communication losses.

ATTENTION: Risk of injury or equipment damage exists.

!Parameter 11 - [Network Timeout] lets you determine how

long it will take your adapter to detect network communication losses. By default, this parameter sets the timeout to ten (10) seconds. You can set it so that the duration is shorter, longer, or disabled. 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).

Set the network timeout in Parameter 11 - [Network Timeout].

Figure 3.6 Example Network Timeout Screen

Port 5 Device			Default = 10 seconds
20-COMM-H
Parameter #: 11
Network Timeout		Sec
10
0 <> 180

Changes to this parameter take effect immediately. A reset is not required.

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Configuring the Adapter	3-7

Setting a Fault Action	By default, when I/O communications are disrupted (for example, a cable is
	disconnected), the drive responds by faulting if it is using I/O from the
	network. You can configure a different response to disrupted I/O
	communication using Parameter 15 - [Comm Flt Action].
	ATTENTION: Risk of injury or equipment damage exists.

!Parameter 15 - [Comm Flt Action] lets you determine the action

of the adapter and connected drive if I/O 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).

Changing the Fault Action

Set the value of Parameter 15 - [Comm Flt Action] to the desired response:

Value	Action	Description
0	Fault	The drive is faulted and stopped. (Default)
1	Stop	The drive is stopped, but not faulted.
2	Zero Data	The drive is sent 0 for output data. (The command word and Reference are
		set to zero.) This does not command a stop.
3	Hold Last	The drive continues in its present state.
4	Send Flt Cfg	The drive is sent the data that you set in the fault configuration parameters
		(Parameters 18 - [Flt Cfg Logic] through 27 - [Flt Cfg D2 In]).

Figure 3.7 Example Fault Action Screen

Port 5 Device

20-COMM-H

Parameter #: 15

Comm Flt Action

0

Fault

Changes to this parameter takes effect immediately. A reset is not required.

Setting the Fault Configuration Parameters

If you set Parameter 15 - [Comm Flt Action] to “Send Flt Cfg,” the values in the following parameters are sent to the drive after an I/O communications fault occurs. You must set these parameters to values required by your application.

Parameter	Name	Description
25	Flt Cfg Logic	A 16-bit value sent to the drive for Logic Command.
26	Flt Cfg Ref	A 32-bit value (0 – 4294967295) sent to the drive as a Reference or
		Datalink.
27 – 34	Flt Cfg x1 In
	or	Important: If the drive uses a 16-bit Reference or 16-bit Datalinks, the most
	Flt Cfg x2 In	significant word of the value must be set to zero (0) or a fault will occur.

Changes to these parameters take effect immediately. A reset is not required.

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3-8 Configuring the Adapter

Resetting the Adapter	Changes to switch settings and some adapter parameters require that you
	reset the adapter before the new settings take effect. You can reset the
	adapter by cycling power to the drive or by using Parameter 14 - [Reset
	Module].
	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 a connected adapter.

Set Parameter 14 - [Reset Module] to “1” (Reset Module).

Figure 3.8 Example Reset Module Screen

Port 5 Device			Value	Description
20-COMM-H			0	Ready (Default)
			1	Reset Module
Parameter #: 14
Reset Module			2	Set Defaults
1
Reset Module

When you enter “1” (Reset Module), the adapter will be immediately reset. When you enter “2” (Set Defaults), the adapter will set all adapter parameters to their factory-default values. After performing a Set Defaults, enter “1” (Reset Module) so that the new values take effect. The value of this parameter will be restored to “0” (Ready) after the adapter is reset.

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