ROOTECH Accura 2500/2550[DC] Communication User Guide

Brand: ROOTECH

Model: Accura 2500/2550[DC]

Type: Communication User Guide

(UL Certification Process Underway)

Table of Contents

Notice

Warranty

Revision History

Chapter 1 Introduction of Communication Map

1.1 Module Name

1.2 Summary Map

1.3 Data Format

1.4 Data Attribute of Register Access

Chapter 2 System Information

2.1 System Information of Accura 2500

2.2 System Information of Accura 2550

2.2.1 Accura 2550 System Information by Module ID

2.2.1.1 Details on Accura 2550 System Information by Module ID

2.2.2 Accura 2550 System Information by Module Connection Sequence

2.2.2.1 Details on Accura 2550 System Information by Module Connection Order

2.3 System Information of Accura TSEN

Chapter 3 Device Setup

3.1 Remote Setup Unlock

3.2 Time Setup

3.2.1 Summer Time Setup

3.2.2 Locale Setup

3.2.3 NTP Setup

3.2.4 System Time Setup

3.3 General Setup

3.3.1 Accura 2500M Description Setup

3.3.2 Accura 2550 Description Setup

3.3.3 Main Accura 2550CMD Assignment Setup

3.4 Communication Setup

3.4.1 Ethernet Setup

3.4.2 Modbus Timeout Setup

3.4.3 RSTP Setup

3.4.4 Storm Control Setup

3.4.5 RS-485 Setup

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3.4.6 Register Map Setup

3.5 User Interface Setup

3.5.1 Accura 2500D LED Setup

3.5.2 Accura 2500D LCD / Buzzer Setup

3.5.3 Accura 2550 Common Setup

3.6 Measurement Setup

3.6.1 Voltage Type Setup

3.6.2 Aggregation Setup

3.6.3 Capacitor Setup

3.6.4 Module Measurement Setup

3.6.4.1 Accura 2500M Module Setup

3.6.4.2 Accura 2550 Module Setup

3.6.4.2.1 Accura 2550CMD-1P Module Setup

3.6.4.2.2 Accura 2550DCM Module Setup

3.6.4.2.3 Accura 2550TEMP Module Setup

3.6.4.2.4 Accura 2550GW Module Setup

3.7 Event Setup

3.7.1 Accura 2500M Module Event Setup

3.7.1.1 Dip Event Setup

3.7.1.2 Swell Event Setup

3.7.1.3 Fuse Fail Event Setup

3.7.1.4 Line Open Event Setup

3.7.1.5 Custom Event Setup

3.7.2 Accura 2550 Module Event Setup

3.7.2.1 Accura 2550CMD Current Event Setup

3.7.2.2 Accura 2550DCM Voltage Event Setup

3.7.2.3 Accura 2550DCM Current Event Setup

3.8 Test Mode Timeout Setup

Chapter 4 Device Control

4.1 Remote Control Unlock

4.2 Data Reset Control

4.3 Energy Level Control

4.4 Zero Level Adjustment Control

4.5 DO Control

4.5.1 Accura 2550DCM DO Control

4.5.2 Accura 2550TEMP DO Control

Chapter 5 Measurement Data

5.1 Overview

5.2 Types of Measurement Aggregation

5.2.1 Fixed Aggregation

5.2.2 Custom Aggregation

5.2.3 Collection of Aggregation Data

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5.3 Aggregation Selection

5.4 Index Selection

5.5 Fetch

5.6 Measurement Header

5.7 Measurement Data of Accura 2500/2550

5.7.1 Measurement Data of Accura 2500M

5.7.2 Measurement Data of Accura 2550

5.7.2.1 Measurement Data of Accura 2550CMD-1P

5.7.2.2 Measurement Data of Accura 2550DCM

5.7.2.3 Measurement Data of Accura 2550TEMP

5.7.2.4 Measurement Data of Accura 2550GW

5.8 Measurement of the Max/Min Data of Accura 2500/2550

5.8.1 Max/Min Measurement Data of Accura 2500M

5.8.2 Max/Min Measurement Data of Accura 2550

5.8.2.1 Max/Min Measurement Data of Accura 2550CMD-1P

5.8.2.2 Max/Min Measurement Data of Accura 2550DCM

5.8.2.3 Max/Min Measurement Data of Accura 2550TEMP

5.9 Waveform Data

5.9.1 Access to Waveform Data

5.9.2 Waveform Data of Accura 2500M

5.9.3 Waveform Data of Accura 2550CMD-1P

5.9.4 Waveform Data of Accura 2550DCM

Chapter 6 Event Data

6.1 Overview

6.2 Index Selection

6.3 Fetch

6.4 Event Header

6.5 Event Data of Accura 2500/2550

6.5.1 Measurement Event

6.5.1.1 Start of Voltage Connection Events

6.5.1.2 End of Voltage Connection Events

6.5.1.3 Off Feature for Voltage Connection Events

6.5.1.4 Current and Voltage Events

6.5.1.4.1 Accura 2550CMD Start of Current Events

6.5.1.4.2 Accura 2550CMD End of Current Events

6.5.1.4.3 Accura 2550DCM Start of Voltage/Current Events

6.5.1.4.4 Accura 2550 DCM End of Voltage/Current Events

6.5.1.5 Start of Custom Events

6.5.1.6 End of Custom Events

6.5.1.7 Off Feature for Custom Events

6.5.2 Power Quality Event

6.5.2.1 Start of Dip / Swell Event

6.5.2.2 End of Dip / Swell Event

6.5.2.3 Off Feature for Dip / Swell Events

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

6.6 Event Trend Data of Accura 2500/2550

6.7 Occurrence Status of Custom Events

Appendix A Modbus Protocol of Accura 2500

Appendix B Sample of Modbus RTU Packet

Appendix C Sample of Modbus TCP Packet

Appendix D CRC-16(Modbus) Algorithm

Appendix E Modbus Map Application

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

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Notice

Symbols

Caution

Indicates the presence of dangerous voltage which can cause severe injury or death if

proper precautions are not followed.

Caution

Alerts the user of the presence of hazards which can result in injury, damage to

property or to the device if proper precautions are not followed.

Note

Indicates major instructions for the installation, operation, and maintenance of the

product.

Installation Considerations

The installation, operation, and maintenance of the product should be performed only by qualified, competent

personnel that have received appropriate training for high voltage and current devices.

If hazardous voltages are mishandled while installing and operating the product in the field, it can cause

serious injury or death.

■ During normal operation of the product, hazardous voltages are present on the terminals that connect PTs/CTs,

digital inputs, power, and external I/O circuits. The PT/CT secondary can produce lethal voltage or current caused

by the energy of the primary.

■ Standard safety precautions should be followed during the installation and maintenance of the product, including

removing PT fuses and shorting CT secondaries.

■ Install the product in enclosures or a similar cabinet to prevent access to the terminal strips of the product after

wiring.

Observe the following instructions, or permanent damage may occur to the product.

■ Do not apply voltages and currents that exceed input ratings of the PT and the CT to the product.

■ Using the device for other purposes not specified by the manufacturer can cause severe damage to the product.

■ Connect the device's chassis ground terminal to the earth ground to protect the device from noise and surge.

About the Manual

Rootech Inc. reserves the right to make changes in the product specifications shown in this communication manual

without prior notice. We recommend that our customers should obtain the latest information on specifications and

the manual before making orders.

In the absence of written agreements, Rootech, Inc. assumes no liability for applications assistance, customer’s system

design, or infringement of patents or copyrights induced by third parties arising from the use of the products

described herein.

We endeavor to provide accurate information in the document. However, we are not responsible for

any errors which may appear here and reserves the right to make changes without prior notice.

Limitation of Liability

Where applicable law allows and does not prohibit or restrict such limitation, Rootech, Inc’s liability for this product

shall be limited to the amount actually paid by customers for the product.

Warranty

Rootech Inc. provides warrants for two years from the product receipt date only to original purchaser of the products

and software that are sold or licensed by the company.

To obtain warranty service, the purchased products should be free from serious defects in material and workmanship.

The software is provided in an up-to-date version, thus we do not offer any warranty for the software product.

In order to make a product claim under the warranties described above, original purchaser should immediately

contact Rootech headquarters. Upon receiving claims, Rootech will check out the product either at where the

purchaser is or at the company after receiving the product from the customer, who is responsible for the cost of

shipping the product. After inspecting the product, we will provide repair or replacement services for the product.

Rootech will decide at its discretion whether to repair or replace it or give a refund for the product for when the

warranty period for the product expired or issues related to the product are not applicable for warranty terms and

conditions.

Limitation of Warranty

The Warranty does not apply to uninterrupted or error-free operation of the product or cover normal wear and tear

of the product or costs caused by the removal, installation, or troubleshooting of the customer's electrical systems.

Defects caused by any of the following factors are not covered under the warranty.

■ Improper use(alteration, accident, misuse, abuse) or failure to act in accordance with installation, operation or

maintenance instructions

■ Unauthorized modification, changes or repair attempts

■ Failure to comply with applicable safety standards & regulations

■ Damages coming from transporting or storing the product

■ Damages caused by the force majeure event, including fire, flood, earthquakes, storm damage, overvoltage &

lightning

■ If the original identification marks (trade-mark, serial number, etc.) have been defaced, altered, or removed

Rootech shall not be liable for any other claims except the claims made by customers, including the original

purchaser, his employee, agents, or contractors for any loss, damage, or expense incurred related to the purchased

product when the above warranty terms and conditions are not fulfilled.

Any technical assistance provided by Rootech 's personnel or representatives in system design shall be deemed to be

a suggestion. The original purchaser is responsible for determining the feasibility of such suggestions and should

conduct tests to prove their feasibility.

It is the original purchaser’s responsibility to determine the suitability of any product and associated documentation.

The original purchaser should acknowledge that 100% uptime is not guaranteed because of possible hardware or

software defects. The original purchaser should also recognize that such defects and failures may cause inaccuracies

or malfunctions.

No agency, corporate entity, or employee of Rootech or other companies has authority to amend, modify or extend

the terms and conditions of this warranty in any way without express written authorization from Rootech, Inc.

Revision History

The revision history of "Accura 2500/2550 Communication Manual for DC Modules" is as follows.

Revision Date Description

Revision 1.00 2022.7.12 The initial publication of communication only for DC modules

Chapter 1

Introduction of Communication Map

1.1 Module Name

Chapter 1 Introduction of Communication Map

Module types for Accura 2500/2550 are listed below.

Device Model Description

Main distribution panel

module

Accura 2500M Measures the voltage of the incoming unit in the AC/DC distribution panel

Transmits the sampled voltage data to Accura 2550

Receives measurement data from Accura 2550

Sends/receives set values and measured data to/from Accura 2500D

Communicates with the host system

Can be attached/detached to/from the back of Accura 2500D

Accura

2500M-VD

Voltage Divider is attached to Accura 2500M.

Measures high voltages in DC distribution panels.

Main distribution panel

HMI module

Accura 2500D 5" Color TFT LCD (built-in touch panel)

Sends/receives set values and measured data to/from Accura 2500M

Displays measured values and allows users to set up parameters on the LCD screen

Accura 2500M can be attached/detached to/from the back of Accura 2500D.

DC power measuring

module

Accura 2550CMD Provides current, power, and energy in DC mode connected to Accura 2500M

DC power measuring

meter

Accura 2550DCM Independently provides voltage, current, and power in DC mode connected to

Accura 2500M

TEMP(Temperature)

module

Accura

2550TEMP

Measures the external temperature of the panel where it installed

Collects the data on internal temperatures of the panel measured from Accura TSEN

GW(Gateway) module Accura 2550GW Collects the data on the peripheral devices supporting RS-485 communication

Abbreviated names for the Accura 2500/2550 modules are as below.

Abbreviated Name Description

A2500M Accura 2500M

A2500D Accura 2500D

A2550CMD CMD module Accura 2550CMD

A2550DCM DCM meter Accura 2550DCM

A2550CMD/DCM CMD/DCM

module

Accura 2550CMD or Accura 2550DCM

A2550TEMP TEMP module Accura 2550TEMP

A2550GW GW module Accura 2550GW

1.2 Summary Map

Chapter 1 Introduction of Communication Map

The Accura 2500/2550 communication map is composed of four categories such as "System Information", "Setup",

"Control", "Measurement Data","Event Data". Accura 2500/2550 provides Modbus Protocol-based communication.

Refer to "Appendix A Modbus Protocol of Accura 2500" for more information.

Holding registers are addressed starting at zero. A holding register address can be determined by subtracting 1 from

the register number in the Modbus map. Holding registers 1 - 65536 can be accessed with the addresses 0 - 65535.

System Information

1-106 Accura 2500 System Information

133-2485 Accura 2550 System Information

1901-1963 Accura TSEN System Information

Device Setup

2901 Remote Setup Unlock

3001-3065 Time Setup

3301-3423 General Setup

3601-3705,

65532-65534

Communication Setup

3921-3984 User Interface Setup

4201-4702 Measurement Setup

Module Measurement Setup

5101-5471 Event Setup

Accura 2550 Module Event Setup

6001-6002 Test Mode Timeout Setup

Device Control

2902 Remote Control Unlock

8001-8091 Data Reset Control

6101-6183 Energy Level Control

6301-6302 Zero Level Adjustment Control

Measurement Data

9901-54799 Aggregation Selection

Index Selection

Fetch

Measurement Header

Measurement Data of Accura 2500/2550

Measurement Max/Min Data of Accura 2500/2550

Waveform Data

Event Data

8200-9580 Index Selection

Fetch

Event Header

Event Data of Accura 2500/2550

Event Trend Data of Accura 2500/2550

Occurrence Status of Custom Events

1.3 Data Format

Chapter 1 Introduction of Communication Map

Data Format Description Word Length Endian Range

Char ASCII 0.5 NA1Numbers and characters

UInt8 Unsigned 8-bit 0.5 NA 0 to 255

UInt16 Unsigned 16-bit 1 NA 0 to 65,535

Int16 Signed 16-bit 1 NA -32,768 to 32,767

UInt32 Unsigned 32-bit 2 Big-Endian20 to 4,294,967,295

Int32 Signed 32-bit 2 Big-Endian -2,147,483,648 to 2,147,483,647

Float32 Single-precision Float 2 Big-Endian -3.4x1038 to 3.4x1038

UInt64 Unsigned 64-bit 4 Big-Endian30 to 264-1

1. NA(Not Available): 1-word data, endian-independent

2. As 2-word data, two register spaces are used. The upper word is located in the lower address register and the lower word is located in the higher

address register.

3. As 4-word data, four register spaces are used. The upper word is located in the lower address register and the lower word is located in the higher

address register.

1.4 Data Attribute of Register Access

Chapter 1 Introduction of Communication Map

Character Attribute Description

RRead Access Modbus master can obtain Accura 2500/2550 data through the holding register

with "Read Attribute".

WWrite Access Modbus master can transmit and apply data to Accura 2500/2550 through the

holding register with "Write Attribute".

RW Read/Write Access RW attribute means "Read" and "Write" as mentioned above.

Chapter 2

System Information

2.1 System Information of Accura 2500

Chapter 2 System Information

Number

Name Format Attribute Description

System Information of Accura 2500M

1 Product ID UInt16 R Accura 2500M product ID (2500)

2 Product code 2*Char R Product code no.: E0 (E Zero, ASCII)

3 Serial number UInt32 R Product serial number

5-7 Ethernet MAC address 6*UInt8 R Ethernet MAC address

8 Major application

version

UInt16 R Software major version

9 Minor application

version

UInt16 R Software minor version

10 Application revised

version

UInt16 R Software revised version

11 Reserved

12 Kernel version UInt16 R Kernel version

13 Bootloader version UInt16 R Bootloader version

14 Main board hardware

revision number

UInt16 R Main board hardware revision number

15 Main board PCB version UInt16 R Main board PCB version

16 Power board type UInt16 R Power board type

17-50 Reserved

System Information of MCU

101 MCU board operation

state

UInt16 R Operation state

0: Unknown

1: Bootloader

2: Identified

3: Operation

102-

104

Reserved

105 MCU firmware version UInt16 R MCU firmware version

106 MCU bootloader version UInt16 R MCU bootloader version

107 Reserved

108 MCU voltage divider UInt16 R Validity of MCU voltage divider settings

System Information of Accura 2500D

51 Connection state UInt16 R A2500D connection state

0: Disconnected

1: Connected

52 Product ID UInt16 R Accura 2500D product ID (2501)

53 Product code 2*Char R Product code no.: E1 (ASCII)

54-55 Serial number UInt32 R Product serial number

56-58 Ethernet MAC address 6*UInt8 R Ethernet MAC address

59 Major application

version

UInt16 R Major software version

60 Minor application UInt16 R Minor software version

version

61 Application revised

version

UInt16 R Revised software version

62 Reserved

63 Kernel version UInt16 R Kernel version

64 Bootloader version UInt16 R Bootloader version

65 Main board hardware

revision number

UInt16 R Hardware revision number of the main board

66 Main board PCB version UInt16 R PCB version of the main board

Number

Name Format Attribute Description

2.2 System Information of Accura 2550

Chapter 2 System Information

The system information section of Accura 2550 modules connected to Accura 2500M is divided into two parts; a part

based on the module ID and the other part consisting of the module connection sequence.

2.2.1 Accura 2550 System Information by Module ID

Accura 2550 module ID can be assigned from 0 to 39. Accura 2550 has system information area for each ID, and the

interval between the starting numbers of the modules is 32. The starting number of the module ID N is calculated as

follows.

Module ID N Starting Number = 133 + N*32

Refer to "Details on Accura 2550 System Information by Module ID" for the detailed system information of Accura

2550 modules.

Number

Word Length Module ID Description

133-164 32 0 System information for ID 0

165-196 32 1 System information for ID 1

... ... ... ...

1381-1412 32 39 System information for ID 39

2.2.1.1 Details on Accura 2550 System Information by Module ID

The map given below describes the general system information of Accura 2550 modules. The "Offset Number" of the

map means the relative position from the starting number determined by the module ID. The interval between the

starting numbers of modules is 32 and thus, the starting number of the module ID N should be calculated as follows:

"133 + N*32".

Offset

Number

Name Format Attribute Description

Details on General Information of Accura 2550 Modules

0 Operation state UInt16 R 0: Unknown

1: Bootloader

2: Identified

3: Operation

1 Group & position ID UInt16 R Location data based on the sequence of the Accura 2550

connected to the Accura 2500M

Bit.[15-8] Information on the group

0: Group1 (RJ45-1, 2)

1: Group2 (RJ45-3, 4)

Bit.[7-0] Location assigned for each port within groups. Port A is

placed on the upper part of the group. Port B is placed on the

lower part of the group.

0x41 - 0x68: locations of the 1st to 40th modules connected to

the port A

0x81 - 0xA8: locations of the 1st to 40th modules connected to

the port B

2-15 Reserved

16 Module type UInt16 R 3: CMD-1P

10: IO

11: TEMP

12: GW

13: DCM

17 Product code 2*Char R Product code number (ASCII)

18 Serial number UInt32 R Product serial number

20 Application version UInt16 R Software version

21 Bootloader version UInt16 R Bootloader version

22 Hardware revision UInt16 R Hardware number

23 PCB version UInt16 R PCB version

24-27 Reserved

Details on Specific Information of Accura CMD Module

28 Module property UInt16 R 0: CM 2: CMD

29 Reserved

30 Rated current UInt16 R Rated current of Accura 2550CMD module

Unit: A

31 Physical size UInt16 R Physical size of Accura 2550CMD module

Unit: mm

Details on Specific Information of Accura 2550 DCM Modules

28 Rated voltage UInt16 R Rated voltage of Accura 2550DCM module

Unit: V

29 Rated current UInt16 R Rate current of Accura 2550DCM module

Unit: A

Offset

Number

Name Format Attribute Description

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ROOTECH Accura 2500/2550[DC] Communication User Guide

Brand: ROOTECH

Model: Accura 2500/2550[DC]

Type: Communication User Guide

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ROOTECH Accura 2500/2550[DC] Communication User Guide

ROOTECH Accura 2500/2550[DC] Communication User Guide

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