CC-Link IE Field Network Interface Board
User's Manual (For SW1DNC-CCIEF-B)
-Q80BD-J71GF11-T2
-Q81BD-J71GF11-T2
SAFETY PRECAUTIONS
WARNING
Indicates that incorrect handling may cause hazardous conditions, resulting in
death or severe injury.
CAUTION
Indicates that incorrect handling may cause hazardous conditions, resulting in
minor or moderate injury or property damage.
(Read these precautions before using this product.)
Before using this product, please read this manual and the relevant manuals carefully and pay full attention to safety to handle
the product correctly.
The precautions given in this manual are concerned with this product only. For the safety precautions of the programmable
controller system, refer to the user's manual for the CPU module used.
In this manual, the safety precautions are classified into two levels: " WARNING" and " CAUTION".
Under some circumstances, failure to observe the precautions given under "CAUTION" may lead to serious
consequences.
Observe the precautions of both levels because they are important for personal and system safety.
Make sure that the end users read this manual and then keep the manual in a safe place for future reference.
[Design Precautions]
WARNING
● Configure safety circuits external to the programmable controller to ensure that the entire system
operates safely even when a fault occurs in a personal computer. Failure to do so may result in an
accident due to an incorrect output or malfunction.
(1) Emergency stop circuits, protection circuits, and protective interlock circuits for conflicting
operations (such as forward/reverse rotations or upper/lower limit positioning) must be configured
external to the programmable controller.
(2) The station to which the board is installed may be disconnected from the data link due to a data
link error. If this occurs, the data output from the station and written to other stations before the
error will be held until the station is reconnected to the network (until its data link is
restarted).Provide a mechanism for data link status monitoring and error handling for each station
that is connected to the data link system.
● For the operating status of each station after a communication failure, refer to this manual. Incorrect
output or malfunction due to a communication failure may result in an accident.
● When changing data during operation, configure an interlock circuit in the program to ensure that the
entire system will always operate safely. And determine corrective actions to be taken between the
personal computer and CPU module in case of a communication failure.
[Design Precautions]
CAUTION
● Do not install the control lines or communication cables together with the main circuit lines or power
cables.
Keep a distance of 100mm or more between them. Failure to do so may result in malfunction due to
noise.
1
[Installation Precautions]
WARNING
● Turn off the power for the system in all phases before installing the board to or removing it from the
personal computer. Failure to do so may result in electric shock or cause the board to fail or
malfunction.
● Do not touch any connectors while power is on. Doing so may cause electric shock or malfunction.
[Installation Precautions]
CAUTION
● Use the board in an environment that meets the general specifications in this manual. Failure to do so
may result in electric shock, fire, malfunction, or damage to or deterioration of the product.
● Do not directly touch any conductive parts and electronic components of the board. Doing so can
cause malfunction or failure of the board.
● Do not disassemble or modify the boards. Doing so may cause failure, malfunction, injury, or a fire.
● Fix the board by tightening the board-fixing screws within the specified torque range. Undertightening
may cause drop, short circuit, or malfunction. Overtightening may damage the screw and/or board,
resulting in drop, short circuit, or malfunction.
For the tightening torque of the board-fixing screws, refer to the manual supplied with the personal
computer.
● Before handling the board, touch a conducting object such as a grounded metal to discharge the static
electricity from the human body. Failure to do so may cause the board to fail or malfunction.
● Install the board to a personal computer which is compliant with PCI standard or PCI Express
standard (Page 31 Operating Environment). Failure to do so may cause a failure or malfunction.
● Securely insert the board into the PCI slot following the board installation instruction of the personal
computer. Incorrect insertion of the board may cause malfunction, failure, or drop of the board.
● When installing the board, take care not to contact with other boards.
● When installing the board, take care not to get injured by an implemented component or a surrounding
member.
● Handle the board in a place where static electricity will not be generated. Failure to do so may cause
a failure or malfunction.
● The board is included in an antistatic envelope. When storing or transporting it, be sure to put it in the
antistatic envelope. Failure to do so may cause a failure or malfunction.
● Do not drop or apply a strong impact to the board. Doing so may cause a failure or malfunction.
[Wiring Precautions]
WARNING
● Turn off the power for the system in all phases before installing the board or starting wiring. Failure to
do so may result in electric shock, damage to the product, or malfunction.
● After installation of the board and wiring, attach the cover on the module before turning it on for
operation. Failure to do so may result in electric shock.
2
[Wiring Precautions]
CAUTION
● Place the communication cable connected to the board in a duct or clamp them. If not, dangling
cables may swing or inadvertently be pulled, resulting in damage to the board or cables or
malfunctions due to poor contact.
● When disconnecting the cable from the board, do not pull the cable by the cable part. Pulling the cable
connected to the board may result in malfunction or damage to the board or cable.
● Prevent foreign matter such as dust or wire chips from entering the personal computer. Such foreign
matter may cause a fire, failure, or malfunction.
● Do not install the communication cables together with the main circuit lines or power cables. Keep a
distance of 100mm or more between them. Failure to do so may result in malfunction due to noise.
● Securely plug the communication cable to the connector of the board. Then, check for any incomplete
connection. Poor contact may cause an erroneous input or output.
● Always ground the personal computer to the protective ground conductor. Failure to do so may cause
a malfunction.
[Startup and Maintenance Precautions]
WARNING
● Turn off the power for the system in all phases before cleaning the board or retightening the boardfixing screws. Failure to do so may result in electric shock, or cause a failure or malfunction of the
board.
● Turn off the power for the system in all phases before installing the board to or removing it from the
personal computer. Failure to do so may result in electric shock or cause the board to fail or
malfunction.
● Do not connect or disconnect any communication cable while power is on. Doing so may result in a
malfunction.
[Startup and Maintenance Precautions]
CAUTION
● Thoroughly read the manual and ensure the safety before performing program modification during
operation, forced output, operation such as RUN, STOP, and PAUSE. An improper operation will
result in mechanical damage or accidents.
● Do not disassemble or modify the boards. Doing so may cause failure, malfunction, injury, or a fire.
● Fix the board by tightening the board-fixing screws within the specified torque range. Undertightening
may cause drop, short circuit, or malfunction. Overtightening may damage the screw and/or board,
resulting in drop, short circuit, or malfunction.
For the tightening torque of the board-fixing screws, refer to the manual supplied with the personal
computer.
● Before handling the board, touch a conducting object such as a grounded metal to discharge the static
electricity from the human body. Failure to do so may cause the board to fail or malfunction.
● The board is included in an antistatic envelope. When storing or transporting it, be sure to put it in the
antistatic envelope. Failure to do so may cause a failure or malfunction.
● The microprocessor built in the board will reach a high temperature during operation. Do not touch it
directly when replacing the board. Doing so may result in a failure, malfunction or injury.
3
[Disposal Precautions]
CAUTION
● When disposing of this product, treat it as industrial waste.
4
CONDITIONS OF USE FOR THE PRODUCT
(1) Mitsubishi programmable controller ("the PRODUCT") shall be used in conditions;
i) where any problem, fault or failure occurring in the PRODUCT, if any, shall not lead to any major or serious accident;
and
ii) where the backup and fail-safe function are systematically or automatically provided outside of the PRODUCT for the
case of any problem, fault or failure occurring in the PRODUCT.
(2) The PRODUCT has been designed and manufactured for the purpose of being used in general industries.
MITSUBISHI SHALL HAVE NO RESPONSIBILITY OR LIABILITY (INCLUDING, BUT NOT LIMITED TO ANY AND ALL
RESPONSIBILITY OR LIABILITY BASED ON CONTRACT, WARRANTY, TORT, PRODUCT LIABILITY) FOR ANY
INJURY OR DEATH TO PERSONS OR LOSS OR DAMAGE TO PROPERTY CAUSED BY the PRODUCT THAT ARE
OPERATED OR USED IN APPLICATION NOT INTENDED OR EXCLUDED BY INSTRUCTIONS, PRECAUTIONS, OR
WARNING CONTAINED IN MITSUBISHI'S USER, INSTRUCTION AND/OR SAFETY MANUALS, TECHNICAL
BULLETINS AND GUIDELINES FOR the PRODUCT.
("Prohibited Application")
Prohibited Applications include, but not limited to, the use of the PRODUCT in;
• Nuclear Power Plants and any other power plants operated by Power companies, and/or any other cases in which the
public could be affected if any problem or fault occurs in the PRODUCT.
• Railway companies or Public service purposes, and/or any other cases in which establishment of a special quality
assurance system is required by the Purchaser or End User.
• Aircraft or Aerospace, Medical applications, Train equipment, transport equipment such as Elevator and Escalator,
Incineration and Fuel devices, Vehicles, Manned transportation, Equipment for Recreation and Amusement, and
Safety devices, handling of Nuclear or Hazardous Materials or Chemicals, Mining and Drilling, and/or other
applications where there is a significant risk of injury to the public or property.
Notwithstanding the above, restrictions Mitsubishi may in its sole discretion, authorize use of the PRODUCT in one or
more of the Prohibited Applications, provided that the usage of the PRODUCT is limited only for the specific
applications agreed to by Mitsubishi and provided further that no special quality assurance or fail-safe, redundant or
other safety features which exceed the general specifications of the PRODUCTs are required. For details, please
contact the Mitsubishi representative in your region.
5
CONSIDERATIONS FOR USE
Interlink transfer and routing functions
CC-Link IE Field Network board cannot be used as a relay station for the interlink transfer function or the routing function.
To use these functions, set a network module as a relay station.
Driver installation and updating
The consistency between the driver and utility cannot be identified, and CC-Link IE Field Network board may not operate
properly.
Do not install or update the driver other than the method written in the troubleshooting.
Page 141 TROUBLESHOOTING
INTRODUCTION
Thank you for purchasing the Mitsubishi Electric network interface boards.
This manual describes the required system configuration, specifications, operating procedure, functions, and troubleshooting
of the relevant products listed below.
Before using this product, please read this manual and the related manuals carefully and develop familiarity with the functions
and performance of the CC-Link IE Field Network interface board to handle the product correctly.
Please make sure that the end users read this manual.
MELSEC iQ-R CC-Link IE Field Network User's
Manual (Application)
[SH-081259ENG]
MELSEC-L CC-Link IE Field Network Master/Local
Module User's Manual
[SH-080972ENG]
MELSEC Data Link Library Reference Manual
[SH-081035ENG]
Overview of system configuration, specifications, functions, handling, wiring,
and troubleshooting for CC-Link IE Field Network interface board.
Overview of the CC-Link IE Field Network, and specifications, procedures
before operation, system configuration, installation, wiring, settings, functions,
programming, and troubleshooting for MELSEC-Q series CC-Link IE Field
Network master/local modules.
Specifications, procedures before operation, system configuration, wiring, and
communication examples of Ethernet, CC-Link IE Controller Network, and CCLink IE Field Network
Functions, parameter settings, programming, troubleshooting, I/O signals, and
buffer memory of CC-Link IE Field Network
Overview of the CC-Link IE Field Network, and specifications, procedures
before operation, system configuration, installation, wiring, settings, functions,
programming, and troubleshooting for MELSEC-L series CC-Link IE Field
Network master/local modules.
Programming, function specifications, and sample programming for MELSEC
data link library.
Print book
e-Manual
PDF
Print book
PDF
Print book
e-Manual
PDF
Print book
e-Manual
PDF
Print book
e-Manual
PDF
Print book
e-Manual
PDF
e-Manual refers to the Mitsubishi FA electronic book manuals that can be browsed using a dedicated tool.
e-Manual has the following features:
• Required information can be cross-searched in multiple manuals.
• Other manuals can be accessed from the links in the manual.
• The hardware specifications of each part can be found from the product figures.
• Pages that users often browse can be bookmarked.
12
TERMS
Unless otherwise specified, this manual uses the following terms.
TermDescription
Baton passA token to send data over a network.
Board WDTWatchdog timer that monitors the operating status of network board.
Buffer memoryA memory which is used to store data for communication between the CC-Link IE Field Network board and the master/local
module.
CC IE Field UtilityName for the utility included in the SW1DNC-CCIEF-B CC-Link IE Field Network software package.
CC-Link IE Controller Network
board
CC-Link IE Field Network boardA generic term for the Q80BD-J71GF11-T2 and Q81BD-J71GF11-T2 CC-Link IE Field Network interface board.
CC-Link Ver.2 boardA generic term for the Q80BD-J61BT11N and Q81BD-J61BT11 CC-Link system master/local interface board.
CPU moduleA generic term for the MELSEC iQ-R series, or MELSEC-Q/L series CPU module.
Cyclic transmissionA function by which data are periodically exchanged among stations on the same network using link devices (RX, RY,
Data linkA generic term for cyclic transmission and transient transmission.
Dedicated instructionAn instruction that simplifies programming for using functions of intelligent function modules.
DeviceA device (X, Y, M, D, or others) in a CPU module.
DisconnectionA process of stopping data link if a data link error occurs.
Driver WDTAn abbreviation for the watchdog timer that monitors the communication status between a network board and a personal
Ethernet adapter moduleAn abbreviation for the NZ2GF-ETB CC-Link IE Field Network Ethernet adapter module.
GX DeveloperA generic product name for SW8D5C-GPPW.
GX Works2A generic product name for SWnDND-GXW2 and SWnDNC-GXW2. ('n' indicates its version.)
Head moduleAn abbreviation for the LJ72GF15-T2 CC-Link IE Field Network head module.
Intelligent device stationA station that exchanges I/O signals (bit data) and I/O data (word data) with another station by cyclic transmission. This
Intelligent function moduleA MELSEC-Q/L series module that has functions other than input and output, such as an A/D converter module and D/A
Link deviceA device (RX, RY, RWw, or RWr) in a module and board of CC-Link IE Field Network.
Link refreshData transfer between link devices of CC-Link IE Field Network board and the driver.
Link scan (Link scan time)Time required for all the stations on the network to transmit data. The link scan time depends on data volume and the
Link special register (SW)Word data that indicates the operating status and data link status of a module or board on CC-Link IE Field Network.
Link special relay (SB)Bit data that indicates the operating status and data link status of a module or board on CC-Link IE Field Network.
Local stationA station that performs cyclic transmission and transient transmission with the master station and other local stations.
LoopbackA function that disconnects the station in which an error has occurred, and continues data link with the stations that are
Master stationA station that controls the entire network. This station can perform cyclic transmission and transient transmission with all
Master/local moduleA generic term for the QJ71GF11-T2 and LJ71GF11-T2 CC-Link IE Field Network master/local module.
MD functionA generic term for functions in MELSEC data link library.
MELSECNET/H boardA generic term for the Q80BD-J71LP21-25, Q81BD-J71LP21-25, Q80BD-J71LP21S-25, Q80BD-J71LP21G, Q80BD-
Network moduleA generic term for the following modules:
RASAn abbreviation for Reliability, Availability, and Serviceability. This term refers to usability of automated equipment.
ReconnectionA process of restarting data link when a station recovers from an error.
Relay stationA station that includes two or more network modules. Data are passed through this station to stations on other networks.
Remote device stationA station that exchanges I/O signals (bit data) and I/O data (word data) with another station by cyclic transmission. This
Remote head moduleAn abbreviation for RJ72GF15-T2 CC-Link IE Field Network remote head module.
A generic term for the Q80BD-J71GP21-SX, Q80BD-J71GP21S-SX, Q81BD-J71GP21-SX, and Q81BD-J71GP21S-SX
CC-Link IE Controller Network interface board.
RWw, and RWr).
computer, or operating status of a personal computer.
station responds to a transient transmission request from another station and also issues a transient transmission request
to another station.
converter module.
number of transient transmission requests.
operating normally. Stations connected after the faulty station can also continue data link.
stations. Only one master station can be used in a network.
J71LP21GE, and Q80BD-J71BR11 MELSECNET/H interface board.
• CC-Link IE Field Network module
• CC-Link IE Controller Network module
• MELSECNET/H module
• MELSECNET/10 module
station responds to a transient transmission request from another station.
13
Ter mDescription
Remote I/O stationA station that exchanges I/O signals (bit data) with the master station by cyclic transmission.
Remote input (RX)Bit data input from a slave station to the master station. (For some areas in a local station, data are input in the opposite
direction.)
Remote output (RY)Bit data output from the master station to a slave station. (For some areas in a local station, data are output in the opposite
Remote register (RWr)Word data input from a slave station to the master station. (For some areas in a local station, data are input in the opposite
Remote register (RWw)Word data output from the master station to a slave station. (For some areas in a local station, data are output in the
Reserved stationA station reserved for future use. This station is not actually connected, but counted as a connected station.
RoutingA process of selecting paths for communication with other networks.
Slave stationA generic term for a local station, remote I/O station, remote device station, and intelligent device station.
SW1DNC-CCIEF-BA product name of the software package for CC-Link IE Field Network board.
Transient transmissionA function of communication with another station, which is used when requested by dedicated instruction or utility.
direction.)
direction.)
opposite direction.)
CC-Link IE Field Network requires communication paths to be preset using routing parameters to communicate with
stations on different networks.
14
PACKING LIST
Before Using the Product
Software license agreement
SW1DNC-CCIEF-B
CC-Link IE
Field Network
software package
(CD-ROM)
Q80BD-J71GF11-T2 CC-Link IE
Field Network Interface Board
Before Using the Product
Software license agreement
Low Profile Bracket
SW1DNC-CCIEF-B
CC-Link IE
Field Network
software package
(CD-ROM)
Q81BD-J71GF11-T2 CC-Link IE
Field Network Interface Board
The following items are included in the package of this product. Before use, check that all the items are included.
Q80BD-J71GF11-T2
Q81BD-J71GF11-T2
15
1OVERVIEW
RX
RX
RY
RY
X
Y
W
RWwRWw
RWrRWr
Personal computer
Programmable controller
User
program
Driver
Board
Master/
local
module
CPU
module
1234H
1234H
Write request
Device
Write data
CPU module
Local station
Board
User program
1.1CC-Link IE Field Network
CC-Link IE Field Network is a high-speed and large-capacity open field network that is based on Ethernet technology
(1000BASE-T).
Data communication
High-speed and large-capacity data communication is available between a master station and slave stations on the CC-Link
IE Field Network.
■Periodic communication (cyclic transmission)
Data is periodically communicated among stations within the same network. (Page 60 Cyclic Transmission)
■Non-periodic communication (transient transmission)
Data is communicated upon request. (Page 68 Transient Transmission)
1 Gbps communication speed
1 Gbps communication speed allows high-speed communication. Also, the tact time can be reduced due to the improved
performance of communication response.
1 OVERVIEW
16
1.1 CC-Link IE Field Network
Use of Ethernet cable
1000BASE-T
Star topology
Line topology
Line topology
A 1000BASE-T-compliant Ethernet is used for the connection interface. The wiring cost can be reduced because 1000BASET-compliant Ethernet cables are commercially available. (Page 30 Cables)
Flexible wiring for the system arrangements
The network can be wired into star topology, line topology, and ring topology. (Page 21 Network configuration)
For star topology, a 1000BASE-T design switching hub can be used. (Page 30 Hubs)
Wiring is highly flexible because a network can consist of a combination of star and line topologies. For example, the control
panels can be connected through a star topology and the production lines through a line topology.
1
1 OVERVIEW
1.1 CC-Link IE Field Network
17
1.2CC-Link IE Field Network Board
CC-Link IE
Field Network
A control system using a programming
language such as C language can be
configured when a personal computer
is used as a master station.
Control data and logging data can be
collected at high speed when a personal
computer is used as a local station.
CC-Link IE Field Network board allows the connection of a personal computer to CC-Link IE Field Network.
CC-Link IE Field Network board can be used as either a master station or local stations of CC-Link IE Field Network.
A personal computer can be easily connected to CC-Link IE Field Network
A system which contains a personal computer as a master station or local stations of the CC-Link IE Field Network system
can be configured.
System controls and high-speed data collection
For a reduction of tact time in a manufacturing system, control data, logging data of manufacturing processes, management
data for traceability, and management/diagnostic data for equipment predictive maintenance can be collected at high speed
and monitored.
A control system using a programming language such as C language can be configured when a personal computer is used as
a master station.
Control data and logging data can be collected at high speed when a personal computer is used as a local station.
18
1 OVERVIEW
1.2 CC-Link IE Field Network Board
User programs created using existing boards can be utilized
User programs created using
the existing boards can be
utilized.
CC-Link IE Field Network board
CC-Link Ver.2 board etc.
Display error
locations
Display event
history
Display error
occurrence
For user programs to use CC-Link IE Field Network board, the function-level compatibility can be maintained because the
common interface (MELSEC data link functions) with the existing boards can be used.
Therefore, user programs created using the existing boards such as CC-Link IE Controller Network board, CC-Link Ver.2
board, MELSECNET/H board, can be utilized for CC-Link IE Field Network board.
Program creation time can be shortened since the users who previously used the existing boards do not need to create a new
user program.
Checking CC-Link IE Field Network status on the screen
The status of CC-Link IE Field Network can be checked using CC IE Field Utility. Error locations, error causes, and event
history are displayed on the screen. This helps to reduce the time for the system to recover from the error.
(Page 117 DIAGNOSING BOARD STATUS)
1
1 OVERVIEW
1.2 CC-Link IE Field Network Board
19
2SYSTEM CONFIGURATION
SW1DNC-CCIEF-B
Install
Personal computer
Install
Connect
Connect
CC-Link IE Field
Network board
Ethernet
cable
CC-Link IE Field
Network system
Switching hub
Ethernet cable
(1000BASE-T)
Master station
1 station
Slave station
Up to 120 stations
2.1System Configuration Using CC-Link IE Field
Network Board
A system configuration when using the CC-Link IE Field Network board which is installed to a personal computer is shown
below.
2.2CC-Link IE Field Network Configuration
This section explains CC-Link IE Field Network configurations.
Single Network System
Overall system configuration
Single network system is a system that consists of a master station and slave stations connected by Ethernet cables as
shown below. Up to 120 slave stations and 1 master station can be connected.
20
2 SYSTEM CONFIGURATION
2.1 System Configuration Using CC-Link IE Field Network Board
Network configuration
Switching hub
Switching hub
Switching hub
Star topology
Line topology
Star and line mixed
Ring topology
Ethernet cable
(1000BASE-T)
The network can be wired into star topology, line topology, and ring topology.
A network can consist of a combination of star and line topologies but cannot consist of a combination of ring topology and
star or line topology.
2
ItemDescription
Star topologyThe network is formed into a star with a switching hub. Slave stations can be easily added by this topology. (Add slave stations one by
Line topologyThe connection between the board and modules using an Ethernet cable makes a line topology. For line topology, connections are
Ring topologyThe connection between the board and modules using an Ethernet cable makes a ring topology. Data link continues with the stations that
one. If multiple slave stations are added at a time, all stations on the network are reconnected. Therefore, an error may momentarily occur
in all the stations.)
available without using a switching hub.
are operating normally.
2 SYSTEM CONFIGURATION
2.2 CC-Link IE Field Network Configuration
21
Only the slave station in which an error has occurred is disconnected from the network. Data link continues
Line topology
Ring topology
Master station (Station No.0)
Master station (Station No.0)
Error
Error
Stations after the faulty station
Master station (Station No.0) are disconnected.
The system will continue data link among
normal stations only.
with the stations that are operating normally. In a line topology, all stations connected after the faulty station
are disconnected. In ring topology, data link continues with the stations that are operating normally.
22
2 SYSTEM CONFIGURATION
2.2 CC-Link IE Field Network Configuration
Multi-Network System
CC-Link IE
Controller Network
Network No.3
(Relay station)
(Relay
station)
Network No.1
Network No.2
CC-Link IE
Field Network
CC-Link IE
Field Network
The multi-network system is a system in which multiple networks are connected by some relay stations. Up to 239 networks
can be connected.
2
Cyclic transmission is available only in the same network.
Transient transmission is available with other networks as well as the same network. Communications can be
made with stations on up to the eighth network (the number of relay stations: 7). (Page 69
Communication with different networks)
2 SYSTEM CONFIGURATION
2.2 CC-Link IE Field Network Configuration
23
Precautions
Adding slave stations (including the submaster stations)
If a slave station (including a submaster station) is added to a system having 120 slave stations (including a submaster
station), the system operates as follows.
■When a serial number (first five digits) of the master station is '17022' or higher
Baton pass and data link are not performed in the slave stations (including the submaster stations) added after the 121st
station, and other stations continues baton pass and data link.
Even if the disconnected stations are returned to a system having 121 or more slave stations (including a submaster station),
the stations may not start data link.
• Whether 121 or more slave stations (including a submaster station) are connected can be checked using
the following.
⋅ "Selected Station Communication Status Monitor" of CC-Link IE Field diagnostics (Page 119
Displaying diagnostics screen)
⋅ Number of connected modules over occurrence status (SB0099)
Number of connected modules detected by Number of connected modules over occurrence status
(SB0099) is the total of the slave stations (including a submaster station) which are currently connected and
the disconnected stations (slave stations which were previously connected).
• The number of stations which were previously connected can be reset by removing the disconnected station
of the CC-Link IE Field Network diagnostics. (Page 119 Displaying diagnostics screen)
A data link error may momentarily occur in all the stations and output of the connected slave stations may
turn OFF since all stations on the network will be reconnected when removing the disconnected station. Set
it to maintain output data if needed. (Page 104 Network operation setting)
■When a serial number (first five digits) of the master station is '17021' or lower
All stations will fail and data link cannot be performed.
Connecting devices to the same network
To a switching hub on CC-Link IE Field Network, do not connect an Ethernet device (e.g. personal computer) on a network
other than CC-Link IE Field Network. Doing so will cause timeout in the master station, resulting in disconnection among all
stations.
24
2 SYSTEM CONFIGURATION
2.2 CC-Link IE Field Network Configuration
Configuration in which data link cannot be performed (incorrect ring topology)
Switching hub
Cannot connect both Ethernet ports
to the switching hub.
Switching hub
Switching hub
Do not wire devices as shown below. Doing so will cause an error in all stations and data link cannot be performed.
• Connecting both PORT1 and PORT2 to the switching hub
• Ring topology through a switching hub
2
Ring topology
To configure a network in ring topology, set "Use" for "Loopback Function Setting" in the Network Parameter screen for the
master station. (Page 102 Supplementary setting)
When a module is used for the master station, check if the module version supports the loopback function.
MELSEC-Q CC-Link IE Field Network Master/Local Module User's Manual
■Configuring a network in ring topology using a switching hub
If a network is configured in ring topology through the two ports of the switching hub, the following problems may arise.
Therefore, do not use a switching hub for ring topology.
• Loopback cannot be detected if an Ethernet cable is disconnected.
• If a station is disconnected due to failure or power-OFF, data link will stop.
2 SYSTEM CONFIGURATION
2.2 CC-Link IE Field Network Configuration
25
■There is an offline mode station on a network configured in ring topology.
No loopback is
detected.
No loopback is
detected.
Master stationStation in Offline mode
No loopback is
detected.
No loopback is
detected.
Master station
Station in Offline mode
Error
In the following cases, the master station or the station connected to the offline mode station cannot detect loopback.
• Either of the Ethernet cables connected to the offline mode station is disconnected.
• A station connected to the offline mode station is disconnected.
To detect loopback, set the offline mode station as a reserved station.
When the offline mode station is disconnected, loopback can be detected.
26
2 SYSTEM CONFIGURATION
2.2 CC-Link IE Field Network Configuration
Connecting/disconnecting a cable and turning OFF/ON a device
Insertion/removal
or turning OFF/ON
Instantaneous
error on all
stations.
This section explains the following operations.
Network ConfigurationOperations
Star topology• Turning OFF/ON a system on a slave station or the switching hub
• Connecting/disconnecting an Ethernet cable connected to the switching hub
• Disconnecting an Ethernet cable from a slave station and connecting it to another slave station or the switching hub
Line topology, ring topology• Simultaneously turning OFF/ON systems on multiple stations
(When a data link error station returns, a data link error will occur in all the stations.)
■When a serial number (first five digits) of the master station is '17022' or higher
The actual network configuration and the network map of the CC-Link IE Field Network diagnostics may be a mismatch.
Whether mismatch is occurred or not can be checked using 'Network configuration mismatch occurrence status' (SB0098).
When using a ring topology, the following may be occurred.
• The station number of the loopback station cannot be detected correctly.
• Even if a switching hub is used, data link does not stop.
The actual network configuration and network configuration diagram can be matched by removing the
disconnected station of the CC-Link IE Field Network diagnostics. (Page 119 Displaying diagnostics
screen)
A data link error may momentarily occur in all the stations and output of the connected slave stations may turn
OFF since all stations on the network will be reconnected when removing the disconnected station. Set it to
maintain output data if needed. (Page 104 Network operation setting)
2
■When a serial number (first five digits) of the master station is '17021' or lower
A data link error may momentarily occur in all the stations and outputs of the connected slave stations may turn OFF since all
stations on the network will be reconnected.
For a measure to above error, set the "Network Operation Setting" to maintain inputs from data link error station when outputs
need to be maintained at an occurrence of a data link error. (Page 104 Network operation setting)
2 SYSTEM CONFIGURATION
2.2 CC-Link IE Field Network Configuration
27
Data link error in all stations when starting a personal computer
Duplication
Station No.0
Station No.1
Station No.1
Station No.2
(Data link may stop.)
Errors occur in all stations when a personal computer is started.
This is because the line between P1 and P2 of CC-Link IE Field Network board is disconnected under the following
conditions.
• The power of the personal computer is turned OFF. (The line becomes in a conduction state when the power is turned ON.)
• A reconnection is in progress when starting a board driver.
As a result, the following reconnection occurs and causes an error in all station.
• A reconnection of CC-Link IE Field Network board installed in a personal computer.
• A reconnection of station which is located beyond the CC-Link IE Field Network board from the point of the master station.
If multiple boards are installed in a single personal computer, this symptom occurs for the same number of times as the
number of installed boards.
Connected station numbers
Connected station numbers should not be duplicated. Data link may be stopped when the station number is duplicated.
Turn-ON order
To avoid incorrect input from slave stations, turn ON slave stations first and then the master station.
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2 SYSTEM CONFIGURATION
2.2 CC-Link IE Field Network Configuration
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