Danfoss MCA 122 Modbus TCP Manual de usuario

MAKING MODERN LIVING POSSIBLE

Operating Instructions

MCA 122 Modbus TCP

Safety

Revision Rights

This publication contains information proprietary to

Danfoss. By accepting and using this manual the user

agrees that the information contained herein is used solely

for operating equipment from Danfoss or equipment from

other vendors if such equipment is intended for communi-

cation with Danfoss equipment over an Ethernet serial

communication link. This publication is protected under

the Copyright laws of Denmark and most other countries.

Danfoss does not guarantee that a software program

produced according to the guidelines provided in this

manual functions properly in every physical, hardware, or

software environment.

Although Danfoss has tested and reviewed the documen-

tation within this manual, Danfoss makes no warranty or

representation, either express or implied, with respect to

this documentation, including its quality, performance, or

fitness for a particular purpose.

In no event shall Danfoss be liable for direct, indirect,

special, incidental, or consequential damages arising out of

the use, or the inability to use information contained in

this manual, even if advised of the possibility of such

damages. In particular, Danfoss is not responsible for any

costs including but not limited to the damages incurred as

a result of lost profits or revenue, loss or damage of

equipment, loss of computer programs, loss of data, the

costs to substitute these, or any claims by third parties.

Danfoss reserves the right to revise this publication at any

time and change its contents without prior notice or any

obligation to notify previous users of such revisions or

changes.

Safety Note

WARNING

HIGH VOLTAGE

The voltage of the frequency converter is dangerous

whenever connected to mains. Incorrect installation of the

motor, frequency converter, or fieldbus may damage the

equipment, cause serious personal injury, or death.

Consequently, the instructions in this manual, as well as

national and local rules and safety regulations, must be

complied with.

Safety Regulations

1. The frequency converter must be disconnected

from mains before carrying out repair work.

Check that the mains supply has been discon-

nected and that the necessary time has passed

before removing motor and mains plugs.

2. The off-command on the serial bus does not

disconnect the equipment from mains and should

not be used as a safety switch.

3. Correct protective earthing or grounding of the

equipment must be established. The user must

be protected against supply voltage, and the

motor must be protected against overload in

accordance with applicable national and local

regulations.

4. The earth leakage currents are higher than 3.5

mA.

5. Do not remove the plugs for the motor and

mains supply while the frequency converter is

connected to mains. Check that the mains supply

has been disconnected and that the necessary

time has passed before removing motor and

mains plugs.

Safety MCA 122 Modbus TCP

MG90P202 - VLT®is a protected Danfoss trademark

Warning against Uninteded Start

1. The motor can be brought to a stop with bus

commands while the frequency converter is

connected to mains. These stop functions do NOT

provide protection against unintended starts.

2. While parameters are being changed, there is a

risk that motor starts.

3. Electronic faults in the frequency converter and

cease of

•temporary overload

•faults in supply mains, or

•fault in the motor connection

can cause an unintended start.

WARNING

ELECTRICAL HAZARD

Touching the electrical parts may be fatal - even after the

equipment has been disconnected from mains.

Safety MCA 122 Modbus TCP

MG90P202 - VLT®is a protected Danfoss trademark

Contents

1 Introduction 3

1.1 Introduction 3

1.1.1 About this Manual 3

1.1.2 Assumptions 3

1.1.3 Background Knowledge 3

1.1.4 Available Literature 3

1.1.5 Modbus Conformance 3

1.1.6 Abbreviations 4

2 How to Install 5

2.1 The Modbus TCP Option 5

2.1.1 How to Install Option in Frequency Converter 5

2.1.2 LED Behaviour 6

2.1.3 Topology 7

2.1.4 Network 8

2.1.5 Recommended Design Rules 8

2.1.6 EMC Precautions 10

3 How to Configure 11

3.1 IP Settings 11

3.2 Ethernet Link Parameters 11

3.3 Configuring the Scanner 12

3.4 IP Traffic 15

4 How to Control 17

4.1 How to Control the Frequency Converter 17

4.1.1 Function Codes Supported by Modbus TCP 17

4.2 Modbus TCP Message Framing Structure 17

4.2.1 Function Code 17

4.2.2 Data Field 17

4.2.3 Parameter Handling 17

4.2.4 Storage of Data 17

4.2.5 IND 18

4.2.6 Text Blocks 18

4.2.7 Conversion Factor 18

4.2.8 Parameter Values 18

4.2.9 Modbus Exception Codes 18

4.3 PROFIdrive Control Profile 19

4.3.1 Control Word according to PROFIdrive Profile (CTW) 19

4.3.2 Status Word according to PROFIdrive Profile (STW) 20

Contents MCA 122 Modbus TCP

MG90P202 - VLT®is a protected Danfoss trademark 1

4.3.3 PROFIdrive State - Transition Diagram 21

4.4 Danfoss FC Control Profile 23

4.4.1 Status Word according to Frequency Converter Profile (STW) 24

4.5 Reference Handling 25

4.5.1 Bus Speed Reference Value 25

5 Parameters 27

5.1 Parameter Group 8-** 27

5.2 Parameter Group 12-** 30

5.2.1 12-0* IP Settings 30

5.2.2 12-1* Ethernet Link Parameters 31

5.2.3 12-2* Process Data 32

5.2.4 Modbus TCP 32

5.2.5 12-8* Other Ethernet Services 33

5.2.6 12-9* Advanced Ethernet Settings 33

5.3 Parameter List 34

5.4 Data Types 36

5.4.1 Data Types Supported by FC 102/FC 202/FC 302 36

6 Troubleshooting 37

6.1 Step-by-step Troubleshooting 37

6.2 Alarm Word and Warning Word 37

Index 41

Contents MCA 122 Modbus TCP

2 MG90P202 - VLT®is a protected Danfoss trademark

1 Introduction

1.1 Introduction

1.1.1 About this Manual

First time users can find the most essential information for

quick installation and set-up in these chapters:

1 Introduction

2 How to Install

3 How to Configure

For more detailed information including the full range of

set-up options and diagnosis tools, refer to the chapters:

3 How to Configure

4 How to Control

5 Parameters

6 Troubleshooting

Terminology

Ethernet is a common term used to describe the physical

layer of the network and does not relate to the application

protocol.

1.1.2 Assumptions

These operating instructions are under the conditions that

the MCA 122 Modbus TCP option is used with a Danfoss

FC 100/FC 202/FC 300 frequency converter, and that the

installed option supports the interfaces described in this

document and that all the requirements stipulated in the

option, as well as the frequency converter, are strictly

observed along with all limitations herein.

1.1.3 Background Knowledge

The Danfoss Modbus Option Card is designed to

communicate with any system complying with the Modbus

Messaging on TCP/IP Implementation Guide V1.0b and

Modbus Application Protocol Specification V1.1b standard.

Familiarity with this technology is assumed. Issues

regarding hardware or software produced by other

manufacturers, including commissioning tools, are beyond

the scope of this manual, and are not the responsibility of

Danfoss.

For information regarding commissioning tools, or

communication to a non-Danfoss node, consult the

appropriate manuals.

1.1.4 Available Literature

Available Literature for FC 102/FC 202/FC 300

-The Operating Instructions for VLT

HVAC Drive FC

102, VLT

AQUA Drive FC 202 and VLT

AutomationDrive FC 302 provide the necessary

information for getting the frequency converter

up and running.

-The Design Guides for VLT

HVAC Drive FC 102,

VLT

AQUA Drive FC 202 and VLT

AutomationDrive FC 302 entail all technical

information about the frequency converter design

and applications including encoder, resolver, and

relay options.

-The VLT

AutomationDriveFC 302 Profibus

Operating Instructions, provide the information

required for controlling, monitoring, and

programming the frequency converter via a

Profibus Fieldbus.

-The VLT

AutomationDriveFC 302 Operating

Instructions, provide the information required for

controlling, monitoring, and programming the

frequency converter via a DeviceNet Fieldbus.

-The MCT 10 Set-up Software Operating Instructions,

provide information for installation and use of the

software on a PC.

-The VLT

AutomationDriveFC 302 IP21/Type 1

Instruction, provides information for installing the

IP21/Type 1 option.

-The VLT

AutomationDriveFC 302 24 V DC Backup

Instruction, provides information for installing the

24 V DC Backup option.

Danfoss technical literature is also available online at

www.danfoss.com/BusinessAreas/DrivesSolutions/

Documentations/Technical+Documentation.htm.

1.1.5 Modbus Conformance

The Modbus option is tested to conform to the Modbus

standards and is certified towards conformance test level

version 3.

Introduction MCA 122 Modbus TCP

MG90P202 - VLT®is a protected Danfoss trademark 3

1.1.6 Abbreviations

Abbreviation Definition

API Actual Packet Interval

CC Control Card

CIP Common Industrial Protocol

CTW Control Word

DHCP Dynamic Host Configuration Protocol

EMC Electromagnetic Compatibility

I/O Input/Output

IP Internet Protocol

LCP Local Control Panel

LED Light Emitting Diode

LSB Least Significant Bit

MAR Major Recoverable fail

MAU Major Unrecoverable fail

MAV Main Actual Value (actual output)

MSB Most Significant Bit

MRV Main Reference Value

N/A Not applicable

ODVA Open DeviceNet Vendor Association

PC Personal Computer

PLC Programmable Logic Controller

PNU Parameter Number

REF Reference (=MRV)

RTC Real Time Clock

s Second

STP Spanning tree Protocol

STW Status Word

Table 1.1 Abbreviations

Introduction MCA 122 Modbus TCP

4 MG90P202 - VLT®is a protected Danfoss trademark

2 How to Install

2.1 The Modbus TCP Option

Ethernet Port 1 Ethernet Port 2

MS LED

NS LEDs

MCA122

MODBUS TCP

SW. ver. TM. ver.

NS1

NS2

Ethernet Port 1 Ethernet Port2

Option A

130B1196

MAC 00-1B-08-00-00-00

Address

8 7 6 543 2 1

OFF

130BD190.10

Illustration 2.1 Overview of the Option

2.1.1 How to Install Option in Frequency

Converter

Items required for installing a fieldbus option in the

frequency converter

•The fieldbus option

•Fieldbus option adapter frame for the FC 102/FC

202/FC 300. This frame is deeper than the

standard frame, to allow space for the fieldbus

option beneath

•Strain relief (only for A1 and A2 enclosures)

Illustration 2.2 Option Installed in Frequency Converter

Illustration 2.3 Strain Relief for Enclosure Types A1 and A2

How to Install MCA 122 Modbus TCP

MG90P202 - VLT®is a protected Danfoss trademark 5

Instructions

1. Remove LCP panel from the frequency converter.

2. Remove the frame located beneath and discard it.

3. Push the option into place. The Ethernet

connectors must be facing upwards.

4. Remove both knock-outs on the fieldbus option

adapter frame.

5. Push the fieldbus option adapter frame for the

frequency converter into place.

6. Replace the LCP and attach cable.

NOTICE

Do not strip the Ethernet cable and ground it via the strain

relief-plate! The grounding of screened Ethernet cable is

done through the RJ-45 connector on the option.

NOTICE

After installing the MCA 122 option, be aware of the

following parameter settings:

8-01 Control Site: [2] control word only or [0] Digital and ctrl.

word

8-02 Control Word Source: [3] Option A

2.1.2 LED Behaviour

The option has three bi-coloured LEDs

LED label Description

MS Module Status

NS1 Network Status Ethernet Port 1

NS2 Network Status Ethernet Port 2

Table 2.1 Description of LEDs

State LED Description

No power Off The device is un-powered

Device operational Green: Solid green The device is operational

Standby Green: Flashing green The device needs commissioning

Minor fault Red: Flashing red The device has detected a recoverable fault

Major fault Red: Solid red The device has detected an un-recoverable

fault

Self test Red: Flashing red/

green The Modbus TCP option is in self-test mode

Green:

No IP address Yellow Steady yellow No IP address configured or obtained

Wink Yellow Flashing yellow Flash for 20 s

Table 2.2 MS: Module Status

State LED Description

No IP-address (no

power) Off No link present (or is un-powered)

Connected Green: Solid green Link present; but nor winked and no ACD

Duplicate IP Red: Solid red The IP-address assigned to the device is

already in use

Self test Red: Flashing red/

green The Modbus TCP is in self-test mode

Green

Device has been winked Yellow Flashing yellow Flash for 20 s

Link present at 10 Mbps Yellow Steady yellow Link present; but nor winked and no ACD

Table 2.3 NS1+NS2: Network Status (One per Port)

How to Install MCA 122 Modbus TCP

6 MG90P202 - VLT®is a protected Danfoss trademark

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