LS Industrial Systems Modbus TCP SV-iS7 Series User manual

User Manual
* Use this board after read Safety Instruction of this manual carefully before
using and follow the instructions exactly.
* Please hand this user manual to end user and trouble shooting manager
* After read this manual, keep it at handy for future reference.
LS Industrial Systems
Modbus TCP Option Board
SV-iS7 Series

SV-iS7 Modbus/TCP Manual
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Before using the product, thank you for using our Modbus/TCP option board.
Safety Instruction
zTo prevent injury and danger in advance for safe and correct use of the product, be sure to
follow the Safety Instructions.
zThe instructions are divided as ‘WARNING’ and ‘CAUTION’ which mean as follow.
WARNING
CAUTION
zThe meaning of each symbol in this manual and on your equipment is as follows.
This is the safety alert symbol.
This is the dangerous voltage alert symbol.
zAfter reading the manual, keep it in the place that the user always can
Contact easily.
zBefore you proceed, be sure to read and become familiar with the safety precautions at the
beginning of this manual. If you have any questions, seek expert advice before you proceed.
Do not proceed if you are unsure of the safety precautions or any procedure.
WARNING
zBe cautious about dealing with CMOS elements of option board.
It can cause malfunction by static electricity.
zConnection changing like communication wire change must be done with power off.
It can cause communication faulty or malfunction.
zBe sure to connect exactly between Inverter and option board.
It can cause communication faulty or malfunction.
zCheck parameter unit when setting parameter.
It can cause communication faulty
This symbol indicates the possibility of death or
serious injury.
This symbol indicates the possibility of injury or
damage to property.

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1. Introduction
Modbus/TCP communication board make SV-iS7 be connected to Ethernet network. Controlling
and monitoring of inverter can be done by PLC sequence program or any Master Module. Since
Ethernet which constitutes Internet has been used and IPv4 has been supported, wherever
Internet can be done, controlling and monitoring is possible. But, Ethernet network of the
factory has to be connected to Internet through Gateway.
With simple wiring, installation time can be reduced and maintenance becomes easier.
2. Modbus/TCP Technical features
3. Product Constituents
-. Modbus TCP communication board: 1
-. Modbus TCP manual: 1
-. Fixed Screw (M3): 1
Transmission Speed 10Mbps, 100Mbps
Transmission method Baseband
Max. extended distance
between nodes. 100m (Node-Hub)
Max. node number Hub connection
Auto Negotiation Supported
Max. Frame size 1500 bytes
Communication zone access
method CSMA/CD
Frame error checking method CRC32
Recommended
connecting channel 3 channels

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4. Modbus/TCP Appearance and Installation
(1) Appearance
(2) Exterior
CPU
RJ45
Inverter
Connector
Debug
Connector
LINK
SPEED
ERROR
CPU
▶SW1 : Protocol selecting switch
-.Notusedanymore
LED Display
LAN connector
SW1
Inverter connector

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(3) Communication board connection to iS7 inverter

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5. Network connection
Communication cable connecting terminal
※Make sure that cables connected to Pin1 and 2 are twisted together.
※Make sure that cables connected to Pin3 and 6 are twisted together.
Pin No. Signal Description Cable color
1 TX+ Transmitting data Plus White / Yellow
2 TX- Transmitting data Minus Yellow
3 RX+ Receiving data Plus White / Green
4 NONE Not used Blue
5 NONE Not used White / Blue
6 RX- Receiving data Minus Green
7 NONE Not used White / Brown
8 NONE Not used Brown
1
8

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6. Network Cable Standard
(1) Used Frequency band
Category 5 is used. Transmitting speed of category 5 is 100MHz and possible up to
100Mbps.
(2) Twisted Pair cable type
Classification Detail Used
UTP (U.UTP) High speed signal cable
with no cover
Maximum 200MHz
Voice + Information(Data)+
Low Video signal
FTP (S.UTP) Cable core covered only
Maximum 100MHz
Electromagnetic interruption (EMI) or
electric stability considered
Voice+ Information (Data) +
Low Video (Video) signal
STP (S.STP)
Double-covered,
separately covered Pair
with cable core covered
Maximum 500MHz
Voice +Information(Data)+
Video signal
75Ωcoaxial cable replacement

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7. Modbus/TCP related Keypad parameter
Inverter parameters below display Modbus/TCP related information.
iS7 Modbus/TCP related Keypad Parameter
Code
number Parameter name Initial value
Setting
value Description
CNF-30 Option-1 Type - -
Communication card installed in
inverter is displayed.
(If Modbus/TCP comm. Card
is installed, “Ethernet” is displayed)
COM-06 FBus S/W Ver - - The version of Communication card
installed in inverter is displayed.
COM-09 FBus Led
LED ON/OFF information in
Modbus/TCP communication card is
displayed.
COM-10 Opt Parameter1 0x0000 0x0000
~0xFFFF Set IP Address.
COM-11 Opt Parameter2 0x0000 0x0000
~0xFFFF
COM-12 Opt Parameter3 0x0000 0x0000
~0xFFFF Set Subnet Master
COM-13 Opt Parameter4 0x0000 0x0000
~0xFFFF
COM-14 Opt Parameter5 0x0000 0x0000
~0xFFFF Set Gateway Address.
COM-15 Opt Parameter6 0x0000 0x0000
~0xFFFF
COM-16 Opt Parameter7 0 0~2 Set Modbus/TCP Comm. speed.
COM-94 Comm Update NO Communication related Keypad
parameter is Updated.

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(1) Option Type (Option card information, CNF-30)
The type of communication card installed in iS7 is displayed automatically.
If Modbus/TCP communication card is installed, “Ethernet” message is displayed
automatically.
(2) Option Version (Option version information, COM-06)
Version of communication card installed in iS7 is displayed automatically.
(3) FBus Led (COM-09) – Option card LED information displayed
The ON/OFF state of LINK, SPD, ERR, CPU LED in Modbus/TCP communication card
is displayed at Keypad parameter COM-09.
If you check COM-9 FBus LED with Keypad, 4 LEDs can be seen. According to order of
LED of COM-09 (Left -> Right) LINK, SPD, ERR, CPU LED can be displayed.
When LED is ON, the relevant bit becomes 1 and when OFF, it becomes 0.
COM-09 Led state example)
Bit Description
0
1
2
3
CPU LED
ERROR LED
SPEED LED
LINK LED
LINK LED SPEED LED ERR LED CPU LED
ON OFF ON OFF

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(4) Modbus/TCP IP, Subnet Mask, Gateway Address (COM-10~15)
IP version that Ethernet option supports is v4. All the addresses and masks are
expressed as Decimal number. Decimal number. Decimal number. Decimal number
and a number between 0 and 255 is input for each decimal number.
In Ethernet option, all decimal number is supposed to change into hexadecimal number.
That is, if they are expressed as Hexadecimal number. Hexadecimal number.
Hexadecimal number. Hexadecimal number, a number between 00 and FF is input for
each hexadecimal number. Also input dividing 2 higher hexadecimal numbers and 2
lower numbers.
Lower code numbers from Opt Parameter 10~15 represent 2 higher hexadecimal
numbers and higher code numbers represent 2 lower hexadecimal numbers.
Ex) For setting IP Address 196.168.10.131
Change 196.168.10.131 into hexadecimal numbers. C4.A8.0A.83
For COM-10 Opt Parameter1 input 0xC4A8
For COM-11 Opt Parameter2 input 0x0A83.
(5) Modbus/TCP Baud rate (COM-16)
Modbus/TCP speed can be set within the range of 0~2.
`
Automatic Speed Setting function is for setting automatically maximum speed in
Network.
Full Duplex can transmit DATA through TX during receiving DATA through RX. On the
contrary, Half Duplex can perform only one of RX or TX. That is, for maximum DATA
transmitting and receiving, Full Duplex is twice faster than Half Duplex.
Refer) When communicating with PLC by 1:1 method, for changing communication
speed of PLC after setting communication speed as Automatic Speed Setting (COM-
16:0), pull out LAN Cable and plug it in again if automatic connection can not be done.
(6) Comm UpDate (COM-94)
For Option Parameters, when power inputs for the first time, the values set in Option
are expressed. But if you set, the setting is not reflected at once.
If Comm Update is set as Yes, the value is reflected to Modbus/TCP communication
card and only Modbus/TCP communication card operates again.
Setting value Speed
0
1
2
Automatic Speed Setting
100Mbps Full Duplex 10Mbps
Full Duplex

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8. Inverter communication address
Refer to inverter IS-7 Manual Chapter 11. for communication function.
9. Modbus/TCP Frame
(1) Modbus/TCP Frame structure
Generally, Ethernet uses Ethernet II Frame.
MODBUS Application Protocol Header (MBAP Header)
MBAP Header structure is as below.
(1) Protocol Data Unit (PDU)
AS an actual Data of Modbus TCP, consists of Function Code and Data.
Detail information will be given at “(2) Function Code Description.”
(2) Function Code Description
Modbus TCP can be divided into Client and Server. Client gives the command and
Server responds to the command. Generally, as Client, there are PLC, HMI, PC so on,
and Server means inverter.
MBAP Header( 7 bytes) PDU (5 bytes ~)
Region Length Description
Transaction Identifier 2 Bytes
As an identified transmitting number, is
increased by 1 each time when Data frame is
send to Server from Client.
Protocol Identifier 2 Bytes Fixed as 0.
Length 2 Bytes
Modbus Data Frame length.
From MBAP Header to Unit Identifier,
Byte-unit length can be expressed.
Unit Identifier 1 Byte
When Modbus TCP and Modbus RTU are
connected with Gate, Slave number is written.
When Modbus TCP is only used, it is fixed as
0xFF.

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①Read Holding Registers
It is a function for reading Data from Inverter (Server).
Frame Constitution that Client requires Server
Frame Constitution that Server responds to Master
②Write Single Register
The function is used when modifying 1 Data of Inverter (Server).
Frame Constitution that Client requires Server
Frame Constitution that Server responds to Master
Required Frame Length Value
Function Code 1 Byte 0x03
Comm. Address 2 Bytes 0x0000 ~ 0xFFFF
Required Data number 2 Bytes 1~16
(by LSIS Inverter standard)
Responded Frame Length Value
Function Code 1 Byte 0x03
Comm. Address 1 Byte 2 x Data required number
Required Data number Data required
number x 2 Bytes
The required data number from
communication address
Required Frame Length Value
Function Code 1 Byte 0x06
Comm. Address 2 Bytes 0x0000 ~ 0xFFFF
Data Value 2 Bytes 0x0000 ~ 0xFFFF
Responded Frame Length Value
Function Code 1 Byte 0x06
Comm. Address 2 Bytes 0x0000 ~ 0xFFFF
Data Value 2 Bytes 0x0000 ~ 0xFFFF

SV-iS7 Modbus/TCP Manual
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③Write Multiple Register
The function is used when modifying consecutive Data from 1 up to 16 of inverter
(Server). Frame Constitution that Client requires Server
Frame Constitution that Server responds to Master
(3) Except Frame
Except Frame is for responding from Server if Error happens performing the required
Frame when Client sends required Frame to Server.
Exception Frame Structure
Required Frame Length Value
Function Code 1byte 0x10
Comm. Address 2bytes 0x0000 ~ 0xFFFF
Modifying Data number 2bytes 1~16
(by LSIS inverter standard )
Byte Count 1byte 2 X Data number
Data value to be modified Data number
x 2 bytes
Data for modifying
Responded Frame Length Value
Function Code 1 Byte 0x10
Comm. Address 2 Bytes 0x0000 ~ 0xFFFF
Modifying Data number 2 Bytes 1~16 (by LSIS inverter standard)
Error Frame Length Value
Error Code 1byte 0x80 + Function Code that
Client requires
Exception Code 1byte 0x0000 ~ 0xFFFF

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Exception Code Type
10. LED Information
In iS7 Modbus/TCP communication card, 4 LEDs which indicate the Modbus/TCP state to the
user are installed. In iS7 Modbus/TCP communication card, LEDs are displayed as below.
Type Code Description
ILLEGAL FUNCTION 0x01 If non-supported Function is required.
ILLEGAL DATA ADDRESS 0x02 Data of not used address is required or to
be modified.
ILLEGAL DATA VALUE 0x03 If you try to modify Data with the value
that is against the permitted data range.
SLAVE DEVICE FAILURE 0x04
If there is error in Server
(CAN Comm. ERROR with inverter,
Option initialization ERROR, failure of
DATA comm. with inverter)
SLAVE DEVICE BUSY 0x06
If Server can’t respond due to other
process (such as Inverter parameter
initialization or option initialization
setting)
WRITE PERMITION ERROR 0x20
If you try to modify modifying prohibited
parameter value with the Code that only
exists at LS inverter.
Green
Speed
RED
Err
Green
CPU
Green
Link

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LED name Color Function
CPU Green
BLINK– It means iS7 Modbus/TCP communication card CPU is
operating normally when the power is well supplied to iS7
Modbus/TCP.
ERROR Red
OFF – It means iS7 Modbus/TCP communication card is normal
without Error.
ON – It means Modbus/TCP option EEPRom is faulty.
Replace EEPRom.
CPU, ERROR Flashing by turns.
–Displayed if IP Address is set as 0.0.0.0.
CPU, ERROR are Flashing
- Displayed if CAN communication is interrupted.
CPU with 0.5 sec, ERROR with 1sec period Flashing
- Displayed if Opt Parameter is changed and Comm Update
(Com94) is not done.
Speed Green ON – means Comm. Speed is 100Mbps.
OFF – means Comm. Speed is 10Mbps.
Link Green
ON – means it is ready to do communication.
OFF – If communication cable wiring is incorrect, Link LED
becomes OFF. Check communication Cable.

SV-iS7 Modbus/TCP Manual
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Warranty
Product
Name
LSIS Communication
Option Card
Installation
Date
Model
Name
SV-iS7 Modbus TCP
Communication Card
Warranty
Period
Customer
Name
Address
Tel.
Sales
Office
Name
Address
Tel.
Note
This product has been manufactured through the strict QC control and inspection of LS Industrial Systems.
Warranty period is 12 months after installation or 18 months after manufactured when the installation date is
unidentified. However, the guarantee term may vary on the sales term.
z In-warranty service information
 If the defective part has been identified under normal and proper use within the guarantee term,
contact your local authorized LS distributor or LS Service center.
z Out-of-warranty service information
 The guarantee will not apply in the following cases.
 Troubles are attributable to a user’s intentional negligence or carelessness
 Damage was caused by abnormal voltage and peripheral devices’ malfunction (failure)
 Damage was caused by natural disasters(earthquake, fire, flooding, lightning and etc)
 When LS nameplate is not attached

Leader in Electrics & Automation
LS Industrial Systems 10310000962
Modbus TCPOption Boar
d
SV-iS7 Serie
s
2008.
8
※ LS Industrial Systems constantly endeavors to improve its product so that
Information in this manual is subject to change without notice.
ⓒ LS Industrial systems Co., Ltd 2008 All Rights Reserved.
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