This documentation describes items to consider in advance, how to select devices, points
to keep in mind and procedure in order to set up cable wiring.
Abstract of contents
Chapter 1: Procedure for cable wiring of network system
Chapter 2: Construction and specifications of network system
Chapter 3: Select guide for connected devices
Chapter 4: Set up and cable wiring
We hope that every customer sets up CC-Link system easily by reading thisdocumentation.
If you have any questions about this documentation, please don’t hesitate to contact CLPA,
which is written on last page of this documentation.
CC-Link Partner Association (CLPA)

Revisions
Revision item
2: Construction andspecifications of
network system

Revision description∙ Note 1 was added to 1) in (1)CC-Link versions.
∙ Tables 2.3, 2.4, 2.5, and 2.6 weremodified in (2) Multidrop connection(CC-Link Ver.1.10).

RevisionSub
datenumberMarch 2024
H

Contents
Chapter 1: Procedure for cable wiring of network system ·········································· 1
Chapter 2: Construction and specifications of network system ··································· 3
2.1 Abstract of network construction ······························································· 4
2.2 Network specification ············································································· 6
Chapter 3: Select guide for connected devices ····················································· 12
3.1 CC-Link Cable ···················································································· 13
3.2 Terminal resistor ·················································································· 14
3.3 Connector ·························································································· 15
3.4 Power supply ······················································································ 17
Chapter 4: Set up and cable wiring ····································································· 18
4.1 Points to keep in mind to set up cable wiring ············································· 19
4.2 Process and connection of CC-Link dedicated cable (In case of terminal) ······· 21
4.3 Terminal resistor connection··································································· 23
4.4 Connection of shield line with ground ······················································· 24
Appendix CC-Link Ver.1.00 Specifications ··························································· 27

Chapter 1: Procedure for cable wiring of network system

1Chapter 1: Procedure for cable wiring of network system
Procedure for cable wiring of CC-Link network system is as following:
Start

Chapter 2: Configuration andspecifications of network system

Communication speed and cable length/Selection of communication speed
to meet response time
/ Transmission distance, Station to station
cable length and selection of cableYesIs
it satisfied
with
CC-Link specification?

NoIs
it satisfied with
CC-Link
specificationby using repeater?

No

Yes
Chapter 3: Select guide forconnected devices

Preparation of devices

Cable wiring work

Chapter 4: Set up and cablewiringSelection of devices

No

Confirmation of connection

Yes
End
Fig. 1.1 Procedure for cable wiring of CC-Link network system

2

Chapter 2: Construction and specifications of network system

3

Chapter 2: Construction and specifications of network system
2.1 Abstract of network configuration
Explanation of terminology and definitions of abbreviations

Station:A device that is connected via the CC-Link to which any of station numbers 0 to 64
can be assigned.

Master station
A station that has the control information (parameters) and controls the entire network.
One master station is required in each network. The station number is fixed to 0.

Local station
A station that can perform n:n cyclic transmission and transient transmission with themaster station and other local stations.

Remote station
A generic term for stations other than a master station and local station

Standby master station
A station that replaces the master station to continue the data link in case the masterstation function stops. A standby master station has the same functions as those of
the master station, and functions as a local station in a normal condition.

Intelligent device station
A station that can perform 1:n cyclic transmission and transient transmission with themaster station.

Remote device station
A station that can use bit data and word data.

Remote I/O station
A station that can only use bit data.

Cable:

Use CC-Link dedicated cable (Shielded, 3-crore twisted pair cable)

Terminal resistor:

The resistors are attached at both edges of cable. The resistor

reduces reflected wave at terminal point and prevents disturbance of
signal. Use resistors suitable for cable used.
Method to connect:

CC-Link basic connection is multi drop connection. And

T-branch connection is available in case of 625kbps or less ofcommunication speed or in case of using repeater.

4

Trunk line:

The cable attached terminal resistor on both edges.

Trunk line length:

The cable length of inter terminal resistor without branch line
length.

Branch line:

The cable branched off from trunk line.
Can not branch off from branch line without repeater.

Branch line length:

The cable length of 1 branch line.

Total branch line:

Total length added whole branch line.

Communication speed and cable length:

Refer to Section 2.2 (2) and (3).

5Chapter 2: Construction and specifications of network system
2.2 Network specification(1) CC-Link versions
This document describes the wiring specifications for CC-Link Ver.1.10. Refer to the
Appendix for details on the CC-Link Ver.1.00 wiring specifications.
Table 2.1 CC-Link versions
Ver.1.00
Ver.1.10
Ver.2.00

The station-to-station cable length increased to 20cm or more, improving
wiring performance.
*Device and cable specifications changed.
System and per-station data volume increased to a maximum of 8 times.
*Cable specifications not changed from Ver.1.10.

Table 2.2 How to identify the CC-Link version
Version

Logo

Identification method

Ver.1.00"CC-Link Ver.1.10" is described on the
manuals, rating plates, catalogs,
packings, and others.
"CC-Link Ver.2.00" is described on the
manuals, rating plates, catalogs,
packings, and others.

Ver.1.10

Ver.2.00

It is recommended that you use Ver.1.10-compatible cables for devices which are Ver.1.10
or later (Ver.1.10 and Ver.2.00). If the overall system consists of devices which are Ver.1.10
or later (Ver.1.10 and Ver.2.00) and Ver.1.10 cables, the following advantages can beobtained.
1) The minimum length for all connecting cables between stations is 20 cm under all
conditions.(Note 1)
There is no need to take into consideration any restrictions on cable lengths as a resultof differences in the type of station between neighboring devices.
(Note 1) When the station-to-station cable length is the shortest, use a 7.2 m cable forevery 10 modules.
2) Because of the increased freedom in the lengths of the cables, the burden of wiring workand the positioning of devices can be reduced.
3) When devices are placed net to each other, there is no need to leave any excess lengthof cable, so that space can be used much more efficiently.
4) Cables from different manufacturers can be used together at the same time.
Note: For systems where Ver.1.00, 1.10 and 2.00-compatible units and Ver.1.00 and 1.10
cables are being used together at the same time, the maximum overall cable
extensions and the length of cables connecting different stations will correspond to
Ver.1.00 specifications. Refer to the appendix for details on CC-Link Ver.1.00
specifications.

6(2) Multidrop connection (CC-Link Ver.1.10)(Condition: All devices and CC-Link cable should be Ver.1.10 compatible products. If any of products is
in Ver.1.00, follow the specification for Ver.1.00)
Maximum transmission distance
Master station
Terminal resistor

Terminal resistor

Remotedevice station

Remotedevice station

Remotedevice station

Remotedevice station

Local station

Local station

Fig. 2.1 Connection style

CC-Link dedicated cable Ver.1.10(Characteristic Impedance: 110 ohm type)
Table 2.3 Communication speed and cable length (CC-Link dedicated cable Ver.1.10)
Communication speed
156 kbps
625 kbps
2.5 Mbps
5 MbpsStation-to-station cable length
20 cm or more 20 cm or more 20 cm or more 20 cm or more
Maximum transmission distance
1200 m
900 m
400 m
160 m

10 Mbps
20 cm or more 20 cm or more*3
80 m*1
100 m*2(*1) System configuration where the maximum transmission distance is 80 m or less (Inthis example, the minimum station-to-station cable length restriction does not apply.)
For the maximum transmission distances of the high flexible cables, refer to Tables 2.4,
2.5, and 2.6.
78.2 mMasterstationTerminating
resistor

0.2 m
Station1

0.2 m

Station2

0.2 m

Station3

0.2 m

Station4

0.2 m

Station5

0.2 m

Station
6

0.2 m

Station7

0.2 m

Station8

0.2 m

Station9

Terminating
resistor

Station10(c) Total station-to-station cable length: 1.8 m(b) Total station-to-station cable length: 79.8 m(a) Total cable length: 80 m(*2) System configuration where the maximum transmission distance exceeds 80 m (Inthis example, the minimum station-to-station cable length restriction applies.)
For the maximum transmission distances of the high flexible cables, refer to Tables 2.4,
2.5, and 2.6.
Masterstation80 m

Terminating
resistor

Bm

Am

Station1

Station2

Cm
Station3

Dm
Station
4

Em
Station5

Fm
Station
6

Hm

Gm
Station7

Station8(c) Total station-to-station cable length: (A + B + C + D + E + F + G + H + I)(b) Total station-to-station cable length: (80 + A + B + C + D + E + F + G + H)(a) Total cable length: (80 + A + B + C + D + E + F + G + H + I)ImStation9

Terminating
resistor
Station
10

10 m

10 m

100 m

(*3) Restrictions
When the total number of connected stations including the master station is 11 or more,
the total station-to-station cable length of each consecutive 10 stations should be 10 m or
more. (If the total number of connected stations including the master station is less than11, the restriction does not apply.)
7

Chapter 2: Construction and specifications of network system
CC-Link dedicated high flexible cable Ver.1.10(Characteristic Impedance: 110 ohm type)
There are the following three different cables according to the specifications of the
maximum transmission distance.
1) Transmission distance 70% product (the cable model name is ended by "-7".)
2) Transmission distance 50% product (the cable model name is ended by "-5".)
3) Transmission distance 30% product (the cable model name is ended by "-3".)
Table 2.4 Communication speed and cable length (Ver.1.10 compatible CC-Link dedicated high flexible
cable (Transmission distance 70% product))
Communication speed
156 kbps
625 kbps
2.5 Mbps
5 MbpsStation-to-station cable length
20 cm or more 20 cm or more 20 cm or more 20 cm or more
Maximum transmission distance
840 m
630 m
280 m
112 m

10 Mbps
20 cm or more
20 cm or more*3*156 m
70 m*2

Table 2.5 Communication speed and cable length (Ver.1.10 compatible CC-Link dedicated high flexible
cable (Transmission distance 50% product))
Communication speed
156 kbps
625 kbps
2.5 Mbps
5 MbpsStation-to-station cable length
20 cm or more 20 cm or more 20 cm or more 20 cm or more
Maximum transmission distance
600 m
450 m
200 m
80 m

10 Mbps
20 cm or more
20 cm or more*3
40 m*150 m*2

Table 2.6 Communication speed and cable length (Ver.1.10 compatible CC-Link dedicated high flexible
cable (Transmission distance 30% product))
Communication speed
156 kbps
625 kbps
2.5 Mbps
5 MbpsStation-to-station cable length
20 cm or more 20 cm or more 20 cm or more 20 cm or more
Maximum transmission distance
360 m
270 m
120 m
48 m

10 Mbps
20 cm or more 20 cm or more*3
24 m*130 m*2

When using CC-Link dedicated cables and high flexible cables together
Within the following expression range, the Ver.1.10 compatible CC-Link dedicatedcables and Ver.1.10 compatible CC-Link dedicated high flexible cables can be used
together.
Maximum transmission distance of CC-Link dedicated cables(CC-Link dedicated cable length) + (high flexible cable length (transmission distance
70% product)) / 0.7 + (high flexible cable length (transmission distance 50% product)) /0.5 + (high flexible cable length (transmission distance 30% product)) / 0.3* Cables of different vendors can be used together if they are Ver.1.10 compatible.
* The same restriction as (*3) also applies to the high flexible cables. If it is difficult tochange the wiring, change the transmission speed of the system to 5 Mbps or lower, or
consider using a CC-Link system repeater module.

8(3) T-branch connection
1) When repeater is not used
Max. trunk line length(not including the branch line length)
Distance between T branches

Master station
Terminal resistor*2

Remote device
station*1*1

Remotedevicestation*1

Remote device
station*1

Remote device
stationBranchline
length*2*2*2Remote device
stationRemote device
stationTerminal resistor
Local station

Remote device
station*1*1*1
Local station

Local station*1*2
Remote device
stationTrunk line
Remote device
stationBranch line

Fig. 2.5 T-branch connection (When repeater is not used)

Table 2.7 Communication speed and cable length (T-branch connection (When repeater is not used))

Station-to-station
cable length

Communication speed

156kbps

Between master andlocal stations, intelligent
device station, andadjacent stations *1
Between remote I/Ostations and remotedevice stations(shortest cable) *2

For a system configured only with remote I/O stations and remotedevice stations
For a system configuration that contains local stations and intelligent

2m or more

device stations

30cm or more

See communication specification for the total number of connected
stations

6500m

Distance between T
branches

The length of the cable between terminal resistors. The branch line
length is not included.

100m
No limitMax. branch line length
Overall branch line length

10M/5M/2.5Mbps are not allowed

1m or more

Max. No. of stations
connected to the branch line(per branch)Max. trunk line length

625kbps

8m
200m

Cable length per branch
50m

Total length of all branch lines

Note: As the connection cable, use the Ver.1.10 compatible CC-Link dedicated cable(characteristic impedance 110).

9Chapter 2: Construction and specifications of network system
2) When repeater is used
Enable to Connect T-Branch with repeater at every communication speed.
Enable to Extend transmission distance by using some pcs of repeater.
(Note)
When a repeater is used, follow the specifications specified in Tables 2.8, 2.9, and 2.10.
Followings are product repeater specification:
Repeater(T-branch) module
Max. trunk line length(not including the branch line length)
Master station
Terminal resistor
Remote device
stationRepeaterRemotedevicestationBranchline
lengthTerminal resistor

Terminal resistor

Remotedevice station

Terminal resistor

Terminal resistor
Terminal resistor

Remote device
stationRemoteRemotedevice station device station

Remotedevice station
Terminal resistor

Local station

Local station

Local station

Remote device
stationRemotedevice station

Trunk line
Branch line

Terminal resistor

Fig 2.6 T-branch connection (When repeater is used)

Table 2.8 Communication speed and cable length (Repeater (T-branch) module)
Communication speed
Station to station cable length

156kbps
625kbps
2.5Mbps
5Mbps
10MbpsSame as station to station cable length of CC-Link
system.

Max. No. of stations connected
No limited
to the branch line(within No. of CC-Link specification)(Per branch)Max. trunk line length

Transmission distance of CC-Link system

Max. branch line length

Transmission distance of CC-Link system

Max. No. of station per eachsegment*
Total transmission distance(Trunk line length + branchline length)

10 level

13200m

9900m

4400m

1760m

1100m

*:Segment means total name that CC-Link system devices from terminal resistor to terminal resistor on
multi drop with using repeater.

10

When optical repeater module is used
SI/QSI optical fiber cable
Table 2.9 Communication speed and cable length (Optical Repeater module (SI/QSI))
Communication speed

156kbps

625kbps

2.5Mbps

5Mbps

Station to station cable length

Same as CC-Link specification

Max. No. of stations connected tothe branch line(per branch)

No limited(within CC-Link specification)

Max. trunk line length

Transmission distance of CC-Link system

Max. branch line length

Transmission distance of CC-Link system

Between repeater max. opticalfiber cable length

500m(SI optical fiber cable)
1000m(QSI optical fiber cable)

Max. No. of stations per segment*
Total transmission distance(QSI optical cable)

10Mbps3 level
7800m

6600m

4600m

3640m

3400m

*: Segment means total name that CC-Link system devices from terminal resistor to terminal resistor on
multi drop with using repeater.

GI optical fiber cable
Table 2.10 Communication speed and cable length(Optical repeater module (GI))
Communication speed
Station to station cable length

156kbps

625kbps

2.5Mbps

5Mbps

10MbpsSame as CC-Link specification

Max. No. of stations connected to theNo limited(within CC-Link specification)
branch line(per branch)Max. trunk line length

Transmission distance of CC-Link system

Max. branch line length

Transmission distance of CC-Link system

Between repeater max. optical fiber
cable length

2000m

Max. No. of stations per segment*

2 levelTotal transmission distance(QSI optical cable)

7600m

6700m

5200m

4480m

4300m

*:Segment means total name that CC-Link system devices from terminal resistor to terminal resistor on
multi drop with using repeater.

11

Chapter 3: Select guide for connected devices

Chapter 3: Select guide for connected devices

12

3.1 CC-Link Cable
CC-Link dedicated cable shall be used in CC-Link system.
Specification of CC-Link dedicated cable is as following:
Table 3.1 Specification of CC-Link dedicated cable(Ver.1.10)
Item

Specifications

Cable type
Finish outer diameter
Number of wire cores
Conductor size
Isolator standard thickness

Shielded twisted cable
8.0 mm or less
3
20AWG
0.55 to 0.80 mm
20 lines/0.18 mm or 24 lines/0.18 mm
Insert separately or in a bundle between the ground cable bundle
and aluminum tape.
37.8/km
10000 M km or more
500VDC 1 minute60 nF/km or less
110 15110 6
1.6 dB/100m or less
3.5 dB/100m or lessElectric characteristics

Drain line
Conductor resistance (20 )Insulation resistanceWithstand voltage
Electrostatic capacity (1kHz)
1MHz
Characteristic impedance
5MHz
1MHz
Attenuation amount
(20 )
5MHz

SheathDA
ShieldBlue
White

YellowDB

Aluminum tape
DG

Drain line

Grounding wire

Cross section

SheathDA
Blue

DB

Drain line

Connection with device
Table 3.2 The color of isolator and terminal connector
Color of isolator
Blue
White
Yellow
Grounding wire(Shield)

Terminal
DA
DB
DG
SLD

13

White

Yellow

ShieldAluminum tape
DG
Grounding wire

Chapter 3: Select guide for connected devices
3.2 Terminal resistor
The termination resistors which can be used with Ver.1.10-compatible CC-Link dedicatedcables are 110Ω±5% 1/2W.

14

3.3 Connector
Following are the recommended specifications for cable relay connectors and circuit board
mounting connectors and cable linking connectors which can be used with CC-Link.
(1) IP20 connector types (5-pin)
Table 3.3 Specifications for IP20 connector types (5-pin)

Connector typeContact

Contact
resistance

30mΩ or less

CLPA

Metal plating
thickness

0.2μm or more

Waterproofing
type

IP20 (JIS C 0920)

Pin layout

1pin:DA
2pin:DB
3pin:DG
4pin:OPEN
5pin:SLD

Pin layout
At circuit board
At cable

12345

12345

Note: Use connectors which have been approved by CLPA for both male and female connectors.

(2) M12(Micro) type (4 cores) – A coding
Table 3.4 Specification of M12(Micro) type (4 cores)

Contact
resistanceThickness ofgold plate
Type of water
proof
Pin position

M12(Micro)typeContact

5mΩ or less

CLPA
Pin position

0.1μm or more
FemaleMale

IP67(JIS C 0920)
1pin:SLD
2pin:DB
3pin:DG
4pin:DA

1

2

2

1

4

3

3

4

Note: If use cordset(cable with connectors), use one certified by CLPA.

15

Chapter 3: Select guide for connected devices
Recommended specifications of connector relaying between CC-Link dedicated cables are
as followings:(3) Easy connection water proof type(4 cores, 7 cores)
Table 3.5 Easy connection water proof type
Easy connection water proof
type
Contact
resistanceThickness ofgold plate
Type of Water
proof
Conducts

Contact

5mΩ or less
0.5μm or more

CLPA

IP67 (JIS C 0920)
Pin position
Female4 conductors

7 conductors(with power
conductor)

1pin:DA
2pin:DB
3pin:DG
4pin:SLD

Male

2

1

1

2

4

3

3

4

Female1pin:DA
2pin:DB
3pin:DG
4pin:N.C.
5pin:+24V
6pin:24G
7pin:SLD

2

Male
1

1

4
5

3
7

2
4

6

3

5
6

7

Note: It can be used for connection from control panel to out side.

Contact partner vendors which described on CC-Link products catalog published by CLPAor CLPA web site (http://www.cc-link.org/)
Following are the recommended connection conditions for CC-Link cable relay connectors.
Table 3.6 Recommended connection conditions for cable relay connectors
Communication speed

Lengthof cable
betweenstations

Stations before andafter master/local
stations andintelligent device
stations

Between remote I/Ostations and remotedevice stations(shortest cables)
Max. transmission distance
Relay connector interval

156kbps

625kbps

1m or more

2m or more

Notes
For system configurations between
remote I/O and remote device stations
only
For system configurations which
include local stations and intelligent
device stations

30cm or more―

500m
No limit

―
―

100m

16

3.4 Power supply
Connect a power supply that meets the input power supply specifications of each device
manufacturer.

17

Chapter 4: Set up and cable wiring

Chapter 4: Set up and cable wiring18

4.1 Points to keep in mind to set up cable wiring(1) Communication speed/ Maximum transmission distance
Maximum transmission distance depends on communication speed and/or kinds of
CC-Link dedicated cable.
Connect and set up according to Chapter 2 “2.2 Network specification”(2) Minimum radius of bending cable
Keep Minimum radius of bending cable in using CC-Link dedicated cable
It may cause pulling out from connector and cable, breaking of cable, and so on, when
CC-Link dedicated cable is used with less than minimum radius.

major diameter of cable x 10 or more
Minimum
radiusof Connecting
bending cable
Stablemajor diameter of cable x 4 or more
Minimum radius of bending cable at connecting is permitted in only connecting.
Minimum radius of bending cable at stable permits the characteristic for long period.
(3) Permissible tension
Do not add tension to cable as much as possible.
If it was pulled strong, it may cause pulling out connector and cable, breaking of cable ,possibility of not keeping the characteristic and so on.
At Connecting: If you have no choice but to tension, use within permissible tension.
At Stable: Take notice cable length, how to fix not to add tension to the cable.
Permissible tension(N)=68.6(Unit permissible tension of conductor N/mm 2)x(No. of cablecores)x(sectional area of conductor)(Presented by communication cable expert committee of The Japanese Electric Wire &Cable Makers’ Association“Investment Vol. 117, How to select and use communication cable”
4.2 Section in Chapter 4 Permissible tension of cable (published in April of 1994))

19

Chapter 4: Set up and cable wiring(4) Points to keep in mind against noise

In order to prevent induced noise, keep signal line as far away from power line aspossible.
(We recommend to wire keeping away 100mm or more)
Not set cable up on control panel where high voltage devices are mounted.
Attach surge absorber on devices which radiate noise.
(5) Relay connectors for CC-Link cables
If making relay connections using components such as relay terminal boards and relay
connectors when laying out CC-Link cables, communication errors may occur for somesystems, and so it is recommended that the cables be connected directly to each CC-Link
unit. Alternatively, investigate whether a CC-Link repeater unit can be used.
(6) Connection with moving point
Use CC-Link dedicated high flexible cable in case of connecting with moving point.
And take notice the followings in order to prevent cable from being broken early.
- Not scratch cable coat.
- Not connect cable with wound.
- Minimize fixed point to set cable- Not to force to fix cable at point where cable moves- Connect cable as most suitable length.
- Secure area for radius of bending cable ten times or more cable outer diameter.
(7) Others- Connect cable during power suppliers of connected devices and communication are in
off state.
- Take care not to twist cable in release cable from drum or wound.
- Keep cable electrically and mechanically as far away from other cable (power cable,etc) as possible,

204.2 Process and connection of CC-Link dedicated cable (In case of terminal)
Process CC-Link dedicated cable according to the table 4.1. As well, refer to the table 4.1
for the length of removed cable coat, the length of removed signal wire coat and terminal
process of signal wire.
The length of removed cable coat

Table 4.1 How to process cable
The length of removed signal wire coat.

50mm

3mm

Terminal process of signal wire

Pressure terminal

1) Removing cable coat
Remove CC-Link dedicated cable coat not to scratch shield mesh. But not remove extra
amounts not to cause short.
About 50mm

Fig. 4.1 Removed cable coat2) Process shield
Ravel shield mesh carefully. As well as signal wire, there is one bare drain wire (stranded
wire or each wire). Process the shield according to any of followings.
(1) When shield mesh is used
Coat with isolation tube after putting tightly shield mesh and drain wire together.
(2) When drain wire is used
Coat drain wire with isolation tube after trimming off the excess shield mesh.

Isolation tube
Put shield mesh and drain wire together

Isolation tube
Drain wire(1) When shield mesh is used

(2) When drain wire is used

Fig. 4.2 Process shield

21

Chapter 4: Set up and cable wiring
3)Remove signal wire coat
Remove coat of signal wire according to size of Pressure terminal. Put tightly bear signal
wire together.
About 3mm(1) When shield mesh is used

About 3mm(2) When drain wire is used

Fig. 4.3 Remove signal wire coat4) Connection pressure terminal
Connect signal wire removed coat, shield wire with pressure terminal differently.

Fig. 4.4 Connection pressure terminal5) Connection terminal
Connect signal wire attached pressure terminal with each terminal then drive a screw intightly.
Refer to the table 4.2 as to name of terminal and color of cable conductor
Table 4.2 Name of terminal and color of cable conductor

Terminal
DA
DB
DG
SLD

Signal conductor
Blue
White
Yellow
Ground(shield)

22

4.3 Terminal resistor connection
Connect “terminal resistor (110Ω)” enclosed at both edges.

TR

MasterRemote

Local

DA

DA

DA

DB

DB

DB

DG

DG

DG

SLD
FG

SLD
CC-Link cable

FG

TR

SLD
CC-Link cable

FG

Fig. 4.5 Connection of terminal resistor

T-Branch connection(1) When repeater is not used
Connect terminal resistor (110Ω 5% 1/2W) between DA and DB on each edge oftrunk line.
(Not use CC-Link dedicated high performance cable)(2) When repeater is used
Use “Terminal resistor” included in Repeater module.

23

Chapter 4: Set up and cable wiring
4.4 Connection of shield line with ground- Connect both edges of shield wire for CC-Link dedicated cable with “SLD” of each module.
- Connect “FG” of each module independently.
- Always ground the FG terminals to the protective ground conductor. (Groundresistance: 100 ohm or less)- If not use ground independently, use common ground according to the Fig. 4.6.
- ”SLD” and “FG” of each module are connected together inside of the module.
- Refer to Fig. 4.5 on the previous page for how to connect ground.

CC-LinkmoduleOther
module

CC-LinkmoduleOther
moduleprotective
groundconductor

protective
groundconductor

Independent ground --- Best

Common ground --- Good

CC-LinkmoduleOther
moduleprotective
groundconductor
Common ground --- NG

4.4.1 Supplementary explanation on grounding(1) Grounding types
1. Protective grounding to protect human bodies from electric shocks and ground faults
2. Functional grounding to ensure communication reliability
The grounding of the shield wire of the CC-Link dedicated cable is functional
grounding to ensure communication reliability.
Indication offunctional grounding
terminal

Indication ofprotective grounding
terminal(2) Supplements to grounding methods
For protective grounding or functional grounding, use independent grounding (Fig. 4.6)
or common grounding where cables are wired individually up to the grounding point (Fig.
4.7).
In the case of common grounding (Fig. 4.8), noise may enter the functional grounding
from the protective grounding, making CC-Link communication instable. Especially whencommon grounding is used for the protective grounding and functional grounding (shieldwire of CC-Link dedicated cable) of drive devices such as inverter and servo, thepossibility of instable communication will increase.
1) As the ground wire of the functional grounding, use a copper wire of 1.6mm or morediameter or 2mm2 or more.
(As the ground wire up to the grounding point, it is recommended to use the thickest
possible copper wire (14mm2 or more recommended) at a short distance.)2) Do not tie the ground wire of the functional grounding together with the protective
grounding wire, power cable, etc. (Noise may enter the ground wire, making
communication instable.)24

Control box
CC-Link module

Other module

CC-LinkS

H

H

Protective
groundingterminal

K

CC-Link module

Functional
groundingterminal

CC-LinkH

Grounding point for protective grounding

S

Other module

H

K

Grounding point for functional grounding: FG terminal or SLD terminalof CC-Link module
H : Protective grounding
terminal of module
S

K: Functional grounding
terminal of module

Fig. 4.6 Independent grounding example

Control box
CC-Link module

Other module

CC-Link
H
Protective
groundingterminal

S

H

K

CC-Link module

Functional
groundingterminal

CC-Link
H

S

Grounding pointS

Other module

H

K: FG terminal or SLD terminalof CC-Link module

H : Protective grounding
terminal of module
K

Fig. 4.7 Common grounding example

25: Functional grounding
terminal of module

Chapter 4: Set up and cable wiring

Control box
CC-Link module

Other module

CC-Link
H

S

H

K

CC-Link module

Other module

CC-Link
Grounding terminal

H

S

H

K

S : FG terminal or SLD terminalof CC-Link module
Grounding point: Protective grounding
terminal of module
K : Functional grounding
terminal of module
H

Fig. 4.8 Common grounding example(3) Wiring example of common grounding
The following shows the wiring example of common grounding.
Use 2mm2 or more copper wire forconnection from FG terminal of
CC-Link module to bus forfunctional grounding or functional
grounding terminal.

Control box
CC-Link module

Other module

CC-Link
H
Protective
groundingterminal

S

H

K

CC-Link module

Functional
groundingterminal

CC-LinkH

Grounding
point

26

Bus for functional
grounding(14mm2 or more
recommended)S

Other module

H

K

S : FG terminal or SLD terminalof CC-Link module
H : Protective grounding
terminal of module
K : Functional grounding
terminal of moduleAppendix CC-Link Ver.1.00 Specifications

27

Appendix CC-Link Ver.1.00 Specifications(1) Communication speed and cable length:(If any of devices or cables is in Ver.1.00, follow the specification for Ver.1.00)<System configured with only Remote I/O station and /or Remote device>
Maximum cable length
Master station*1

Terminal resistor
Remotedevice station*2*2

Remotedevice station*1

Remotedevice station*1
Remotedevice station*1
Remote I/OstationTerminal resistor
Remote I/Ostation*1: Cable length between Remote I/O, Remote device and Remote I/O, Remote device.
*2: Cable length between Master and next station.

Fig. 5.1 In case of system configured with only Remote I/O station and/or Remote device station<System including Local station and/ or Intelligent device station >Maximum cable length
Master station*1

Terminal resistor
Remotedevice station*2*2

Remotedevice station*1

Remotedevice station*3*3

Remotedevice station

Terminal resistor

Local station

Local station*1: Cable length between Remote I/O, Remote device and Remote I/O, Remote device.
*2: Cable length between Master and next station.
*3: Cable length between Local, Intelligent device and next station.

Fig. 5.2 In case of system including Local and/ or Intelligent device

Ver.1.00 compatible CC-Link dedicated cable(Characteristic Impedance: 100 ohm type)
Table 5.1 Communication speed and cable length(CC-Link dedicated cable)
Station to station
Cable length

Communication speed

156kbps 625kbps 2.5Mbps

5Mbps

Between
Master/Local,
Intelligent device station
2, 3
and adjacent stations* *Between Remote I/O, Remotedevice stations and Remote
I/O,
Remotedevicestations(shortest cable)*1

Max. transmission distance

10Mbps1m or more
2m or more
30cm ormore

30cm ormore

30cm ormore

60cm ormore

30 59cm

1m
or more60 99cm

30 59cm

1200m

600m

200m

150m

110m

100m

80m

50m

*:Upper line includes only Remote I/O, Remote device station. Lower line includes Local, Intelligent device station.

Ver.1.00 compatible CC-Link
Impedance: 130 ohm type)dedicated

high-performancecable(Characteristic

Table 5.2 Communication speed and cable length(CC-Link dedicated high performance cable)
Station to station
Cable length

Communication speed

156kbps 625kbps 2.5Mbps

Between Master/Local,
Intelligent device station
2, 3
and adjacent stations* *Between Remote I/O, remotedevice and Remote I/O, 30cm
remote device(Shortest cable) or more
*1

Max. No. of remote stations

5Mbps

10Mbps1m or more
2m or more

30cm
or more30cm
or more

64

64

64

1,200m

900m

400m

1,200m

600m

200m

60cm
or
more

30cm
or
more

1.0m
or
more

70cm
or
more

-

100m

30m

20m

100m

80m

100m

80m

50m

-

-

-

-

-

64
-

160m

40 30 69cm
39cm

40cm
or
more

64

30 39cm

30cm
or
more

48

32

Max. transmission distance*
150m 110m*:Upper line includes only Remote I/O, Remote device station. Lower line includes Local, Intelligent device station.

Note: Only single vendor use in case of Ver.1.00 cable28

(2) T-branch connections
Use the Ver.1.00-compatible CC-Link dedicated cables, and do not use thehigh-performance Ver.1.00-compatible CC-Link dedicated cables.
Use termination resistors of 110Ω.
For other T-branch connection specifications, refer to “(2) T-branch connection” in“Chapter 2: Construction and specifications of network system”.
(3) Termination resistors
Following are the specifications for the termination resistors which can be used with
Ver.1.00-compatible CC-Link dedicated cables.
For details on connecting termination resistors, refer to “4.3 Connection of terminal
resistors”.
Table 5.3 Specification of terminal resistor

Cable
Terminal resistor
Ver.1.00 compatible CC-Link dedicated cable
110 ohm 5% 1/2W
Ver.1.00 compatible CC-Link dedicated130 ohm 5% 1/2W
high-performance cable(4) Compatibility when expanding or repairing an existing CC-Link system (Ver.1.00)- For systems using Ver.1.00-compatible CC-Link dedicated cables (characteristic
impedance 100Ω)Use cables from the same manufacturer and the same model as the existing sections of
the system in the sections of the system which are being expanded or repaired, or
alternatively use one of the following methods.
1) Use the same Ver.1.10-compatible CC-Link dedicated cables as used in the existing
section to carry out expansion and repairs.
(Note 1) The maximum cable extension length and the length between different stations
follow the specifications for Ver.1.00.
(Note 2) If cables from a different manufacturer or of a different model to the existing
sections are used when carrying out expansion or repairs, insert CC-Link
repeater units at the locations where the different cables are being used.
2) Rebuild the entire system, including existing sections, using Ver.1.10-compatible
CC-Link dedicated cables.
- For systems using Ver.1.00-compatible CC-Link dedicated high-performance cables(characteristic impedance 130Ω)Use cables from the same manufacturer and the same model as the existing sections of
the system in the sections of the system which are being expanded or repaired, or
alternatively use one of the following methods.
1) Use the Ver.1.10-compatible CC-Link dedicated cables in the sections being expanded
or repaired.
(Note) Insert CC-Link repeater units at the locations where Ver.1.00-compatible CC-Link
dedicated high-performance cables and Ver.1.10-compatible CC-Link dedicatedcables are being connected together.

29

Appendix CC-Link Ver.1.00 Specifications

2) Rebuild the entire system, including existing sections, using Ver.1.10-compatible
CC-Link dedicated cables. (Change the termination resistors from 130Ω to 110Ω.)3) If there are any areas of uncertainty, contact CC-Link Partner Association using thecontact details given at the end of this booklet.

30

Access point

CC-Link Partner Association (CLPA)
6F Ozone-front Building, 3-15-58, Ozone,
Kita-ku, Nagoya, Aichi 462-0825, Japan
TEL:+81-52-919-1588
FAX :+81-52-916-8655
URL :http://www.cc-link.org/
E-Mail :info@cc-link.org
All rights reserved

CC0811-06-H

Prepared in March 2024