Omron KP**G-OD Series Use and care manual

Cat. No. S103-E1-01
Grid Connect
Photovoltaic Inverter
KP_G-OD-_
KP_L-OD-_
COMMUNICATION MANUAL

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Grid Connect Photovoltaic Inverter KPG/KPL Communication Manual
Grid Connect Photovoltaic Inverter KPG/KPL Communication ManualGrid Connect Photovoltaic Inverter KPG/KPL Communication Manual
1-1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1-2 Read and Understand This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Introduction
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1 Introduction
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1-1 Introduction
Thank you for choosing the KPG or KPL (hereafter described KP inverter) Grid Connect Photovoltaic
Inverter. This communication manual describes essential information regarding communication of the KP
inverter.
The KP inverter is designed for use in Grid Connect Solar Systems. The installation must always be carried out
by qualified personnel with knowledge of electrical systems and according to national standards for electrical
installations.
• This communication manual is intended for Users and Installers of the KP inverter.
• Read this manual carefully and make sure that you understand it well to ensure that you are using the
communication of KP inverter.
• Keep this manual in a safe location so that it is available for reference when required.
• For detail description such as function, performance, and usage of the KP inverter, refers to the manual of the
KP inverter.
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Grid Connect Photovoltaic Inverter KPG/KPL Communication Manual
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1-2 Read and Understand This Manual
Read and understand this manual before using the KP inverter. Please consult your OMRON representative if
you have any questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for specified
period from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING
NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS.
ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL
OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS
OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH
CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability
is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING
THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY
HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE,
MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
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Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the
combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and
limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of
the suitability of the products in combination with the end product, machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to
be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be
suitable for the products:
• Uses involving potential chemical contamination or electrical interference, or conditions or uses not described in
this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment,
amusement machines, vehicles, safety equipment, and installations subject to separate industry or government
regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY
WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE
WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
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Disclaimers
PERFORMANCE DATA
Performance data given in this manual is provided as a guide for the user in determining suitability and does not
constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual
application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
Consult with your OMRON representative at any time to confirm actual specifications of purchased product.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are
shown.
ERRORS AND OMISSIONS
The information in this manual has been carefully checked and is believed to be accurate; however, no responsibility
is assumed for clerical, typographical, or proofreading errors, or omissions.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
COPYRIGHT AND COPY PERMISSION
This document shall not be copied for sales or promotions without permission.
This document is protected by copyright and is intended solely for use in conjunction with the product. Please notify
us before copying or reproducing this document in any manner, for any other purpose. If copying or transmitting this
document to another, please copy or transmit it in its entirety.
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Grid Connect Photovoltaic Inverter KPG/KPL Communication Manual
Contents
Chapter 1 Introduction ....................................................................... 1-1
1-1 Introduction............................................................................................................................ 1-2
1-2 Read and Understand This Manual...................................................................................... 1-3
Chapter 2 Settings .............................................................................. 2-1
2-1 Outline of communications functions ................................................................................. 2-2
2-2 Cable Connections ................................................................................................................ 2-2
2-3 Communications settings..................................................................................................... 2-3
2-3-1 Communication settings for KP40G ............................................................................ 2-3
2-3-2 Communication settings for KP100G .......................................................................... 2-3
2-3-3 Communication settings for KPooL ............................................................................. 2-4
Chapter 3 Compoway/F...................................................................... 3-1
3-1 CompoWay/F Communications Specifications .................................................................. 3-2
3-2 Frame Formats....................................................................................................................... 3-3
3-2-1 Command Frame structure ......................................................................................... 3-4
3-2-2 Response Frame Structure ......................................................................................... 3-5
3-3 FINS-mini................................................................................................................................ 3-6
3-3-1 PDU Formats............................................................................................................... 3-6
3-3-2 Variable Areas .............................................................................................................3-6
3-3-3 Type code (variable type) ............................................................................................ 3-7
3-3-4 Address ....................................................................................................................... 3-7
3-3-5 Number of elements .................................................................................................... 3-7
3-3-6 List of Services ............................................................................................................ 3-7
3-4 Detailed Description of Services.......................................................................................... 3-8
3-4-1 Read from variable area.............................................................................................. 3-8
3-4-2 Composite read from variable area (KPooL only) ..................................................... 3-11
3-4-3 Read Controller information ...................................................................................... 3-13
3-4-4 Read Controller Attributes ......................................................................................... 3-14
3-4-5 Read Controller Status .............................................................................................. 3-15
3-4-6 Echoback Test ........................................................................................................... 3-19
3-4-7 Operation Command ................................................................................................. 3-20
3-4-8 Read character string area........................................................................................ 3-21
3-5 Response Code List ............................................................................................................ 3-22
Chapter 4 MODBUS ............................................................................ 4-1
4-1 MODBUS Communications Specifications ......................................................................... 4-2
4-2 Frame Formats....................................................................................................................... 4-3
4-2-1 Command Frame structure ......................................................................................... 4-3
4-2-2 Response Frame Structure ......................................................................................... 4-5
4-3 Function Codes ..................................................................................................................... 4-6
4-4 Variable Areas........................................................................................................................ 4-7
4-4-1 Addresses ................................................................................................................... 4-7
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2Grid Connect Photovoltaic Inverter KPG/KPL Communication Manual
4-4-2 Number of Elements.................................................................................................... 4-7
4-4-3 Communications Data ................................................................................................. 4-7
4-5 Detailed Description of Services.......................................................................................... 4-8
4-5-1 Multiple Read from Variable Area................................................................................ 4-8
4-5-2 Single Write to Variable Area....................................................................................... 4-9
Chapter 5 Communications Data ...................................................... 5-1
5-1 Variable Area (Setting Range) List....................................................................................... 5-2
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This section describes the settings of communications by the KP inverter.
2-1 Outline of communications functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-2 Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2-3 Communications settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3-1 Communication settings for KP40G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3-2 Communication settings for KP100G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
2-3-3 Communication settings for KPooL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Settings
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2-1 Outline of communications functions
The KP inverter are equipped with an RS232C/RS-485 port, which allows remote monitoring and remote
operations over networks.
The following protocol is supported:
The KP inverter has the following communications functions:
Reading settings and data
Executing operation commands
CompoWay/F is OMRON's unified communications protocol for general-purpose serial communications. This
unified format has a proven track record with OMRON Programmable Controllers, has FINS-compliant
commands (see note), and simplifies communications between the host computer and components.
Note:
FINS (Factory Interface Network service) is a messaging protocol for communications between Controllers in
OMRON FA networks.
Modbus is a standard communications control method that conforms to the Modicon Company’s RTU-mode
Modbus Protocol (PI-MBUS-300 Revision J).
Supports functions are similar to the CompoWay/F Read Variable Area, Write Variable Area, Operation
Command.
2-2 Cable Connections
Refer the manual of each inverter for cable connections.
Model Suported protocol
KPGCompoway/F
KPLCompoway/F, MODBUS
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Grid Connect Photovoltaic Inverter KPG/KPL Communication Manual
2-3 Communications settings
2
2-3-1 Communication settings for KP40G
2-3 Communications settings
Communication protocol settings
You can use only Compoway/F on KP40G.
There is no setting for communication protocol.
Node number (Unit number) settings
Node number can be set by setting switch as shown figure.
Baud rate settings
Baud rate is fixed 19200bps.
Communication protocol settings
You can use only Compoway/F on KP100G.
Always set TYPE1 as protocol on communication settings menu of Data Logger.
Node number (Unit number) and baud rate settings
Node number and baud rate can be set by menu of communication settings on Data Logger of the inverter.
[Setting procedure]
1 Use to select COMMUNICATION SETTINGS.
2 Press "OK" to set.
3 Use to select item which you set
4 Use to set node number and baud rate..
5 Press "OK" again to confirm.
2-3-1 Communication settings for KP40G
2-3-2 Communication settings for KP100G
COMMUNICATION SETTINGS
PROTOCOL:TYPE1
NODE NO:1
BAUD RATE:19200bps
OK
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Communication protocol settings
Select Compoway/F or MODBUS on KPL by LCD menu.
Node number (Unit number) and baud rate settings
Select communication protocol and set node number and baud rate by LCD menu.
[Setting procedure]
1 Push the MODE key for 5 second, and enter Mode Selection Display.
2 Push <</>> to select “Setup".
3 Push ENT key and enter mode of User’s setup.
<Protocol>
4 Select “Setup:Protocol” and .push ENT key.
5 User <</>> to change protocol. If you select “Auto”, protocol is detected automatically according to
communication command.
<Node number>
4 Select “Setup:COM_Unit” and .push ENT key.
5 User <</>> to change number.
2-3-3 Communication settings for KPL
RUN
MODE ENT
ERR
<< >>
Normal Display
Pac 3.69kW
1.23/1.23/1.23kW
Error Dis
p
la
y
Error occurs
Mode selection dis
p
la
y
ModeSelect
ErrLog [Setup] Che
ModeSelect
Setup [Check]ErrL
>> ModeSelect
Check[ErrLog]Set
>> >>
mode of User’s setu
p
mode of Check Settings mode of Error
State dis
p
la
y
ErrLog:1.E1-0
No Utility
Check:Country
GER
LCD Check Dis
p
la
y
MODE
or
No oparation for 150second
<<<<<<
ENT
MODE
Error doesn’t
occur
for 5 second
Push the ENT key
Push the MODE key
for 5 second
Push the MODE key or
No operation for 150seconds
Fault E1-2
Grid 0V
ENT
MODE ENT MODE
■■■ V1.23■■■
■■■
KP100L ■■■
Setup:Language
ENG
Setup:COM_Prot
Auto
ENT
MODE
<<
>>
<< >>
After five
ENT
MODE
Setup:COM_Prot
[Auto]
Setup:COM_Prot
[Compoway]
ENT
>>
<<
Setup:COM_Prot
Auto When the setting has been setting,
Setup:Language
[ENG]
Setup:Language
>>
<<
>>
<<
>>
<<
[ITA]
seconds pass
Setup value does the blinking display.
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2 Settings
Grid Connect Photovoltaic Inverter KPG/KPL Communication Manual
2-3 Communications settings
2
2-3-3 Communication settings for KPooL
<Baud rate>
4 Select “Setup: COM_232C” or “Setup: COM_485”, and .push ENT key.
5 User <</>> to change baud rate.
6 Push MODE key to confirm communication protocol
7 Push MODE key to rerun normal display.
Refer the user’s manual of KPL for more detail information.
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Grid Connect Photovoltaic Inverter KPG/KPL Communication Manual
This section describes how to use Compoway/F communications based on
communications commands.
3-1 CompoWay/F Communications Specifications . . . . . . . . . . . . . . . . . . . . . . 3-2
3-2 Frame Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3-2-1 Command Frame structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-2-2 Response Frame Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-3 FINS-mini . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-3-1 PDU Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-3-2 Variable Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
3-3-3 Type code (variable type) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3-3-4 Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3-3-5 Number of elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3-3-6 List of Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
3-4 Detailed Description of Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3-4-1 Read from variable area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
3-4-2 Composite read from variable area (KPooL only) . . . . . . . . . . . . . . . . . . . . . . .3-11
3-4-3 Read Controller information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
3-4-4 Read Controller Attributes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
3-4-5 Read Controller Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
3-4-6 Echoback Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
3-4-7 Operation Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
3-4-8 Read character string area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
3-5 Response Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
Compoway/F
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3-1 CompoWay/F Communications
Specifications
Communications Control Method
Programs can be created in the host computer (e.g., a personal computer) toset or monitor parameters in theKP
inverter. Therefore the descriptions in this section are from the standpoint of the host computer. For example,
"Read/Write" refers to the host computer reading or writing to the inverter.
Communications Specifications
Interface RS-485 RS-232C
Transmission path
connections Multipoint Single point
Communications 2-wire system half duplex Half duplex
Synchronization Start-stopsynchronization
Baud rate
*: default
KP40G
19200bps
KP100G
9600 / *19200bps
KPL
4800 / 9600 / *19200bps
KP40G
9600bps
KP100G
9600 / *19200bps
KPL
4800 / *9600 / 19200bps
Transmitted code ASCII
Data bit length 7 bits
Stop bit length 2 bits
Error detection Vertical parity (even) BCC (block check character)
Data transmission LSB first
Flow control None
Retry function None
Communications buffer
KP40G / KPL
280 reception buffer bytes
273 transmission buffer bytes
KP100G
424 reception buffer bytes
417 transmission buffer bytes
Response wait time after
RS-485 command
transmitted
KP40G : 0.5 ms or more
KP100G : 1.0 ms or more e
KPL : 0 to 99 ms (adjustable)
(Prohibit time from when command is sent from host to
when response is sent from inverter.
Waiting time after RS-485
response
5.0 ms or more
(Prohibit time for command transmission after response
received from inverter)
The next command waiting
time after simultaneous
broadcasting
30ms or more
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Grid Connect Photovoltaic Inverter KPG/KPL Communication Manual
3-2 Frame Formats
3
3-2 Frame Formats
The host computer sends a command frame, and the KP inverter sends a response frame based on the content
of the command frame. One response frame is sent in response to one command frame.
After a receiving a response from the inverter, have the host computer wait specified waiting time at least before
sending the next command as shown the figure.
Host Computer
KP Inverter
Command 1
from host
Response 1 from
Inverter
Command 2
from host
Period for
2 stop bits Response wait time after
RS-485 command
transmitted
(Refer page 13)
Wait time after RS-485
response
(Refer page 13)
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Based on CompoWay/F protocol, commands from the host computer and responses from the KP inverter take
the form of frames.
The data comprising command frames and response frames are explained below.
In the following explanation, an "hex" following a numeric value (for example 02 hex) indicates that the value is a
hexadecimal number. A number or letters enclosed in quotation marks (for example "00") is an ASCII character.
BCC Calculation Example
Note No response will be returned unless the frame contains all elements up to the ETX and BCC
3-2-1 Command Frame structure
STX
This code, 02 hex, indicates the beginning of a
communications frame (text). This code must always be
set as the first byte.
When another STX code is received during reception, the
reception starts again from the point where the STX was
received.
Node No.
The node address identifies the destination node.
• The node address can be set to "00" to "99".
If you use communication by multiple inverters, set the
node address "01" to "31".
• There will be no response to a transmission with an
invalid node address.
Subaddress Not used in the KP inverter. Always set the subaddress to
“00”.
SID (Service ID) Not used in the KP inverter. Always set the SID to “00”.
FINS-mini
command and text
The command and required text are placed here. Refer to
3-3 FINS-mini for details.
ETX This code, 03 hex, indicates the end of text.
BCC
This is the block check character.
The BCC is calculated by taking the exclusive OR of all
bytes from the node number to the ETX.
Text
Node No. Subaddress SID FINS-mini command text BCC
STX 0 0 0 ETX
12 21 11
BCC calculation range
STX Node No. Subaddress SID FINS-mini command text ETX BCC
02
hex
30
hex
30
hex
30
hex
30
hex
30
hex
30
hex
35
hex
30
hex
30
hex
03
hex
35
hex
1 2 2 1 11
BCC calculation range
BCC=30 30 30 30 30 30 35 30 30 03 35 = 35 hex
: XOR(exclusive OR)calculation
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