Control & Communication Link

1. AX80 AX80 AX80 AX80 AY80 AY80 AY80 AY80 QnA A62P A1SX80 A1SX80 A1SX80 A1SX80 A1SX80 A1SX80 A1SX80 A1SX80 A1S61P Qnas .... .... .... .... MELSEC FX .... .... .... .... MELSEC FX0 .... .... MITSUBISHI .... .... MITSUBISHI MELSEC FX0N .... .... .... .... .... .... .... .... MITSUBISHI .... .... .... .... Control & Communication Link

2. Production company (rough structure) Production-Planning (Management-Level) Production-Control (Control-Level) Production (I/O-Level)

3. Flow of Communication Production-Planning Production-Control Production

4. Typical Data of Communication Production-Planning Orders, Stock-Control, Statistics, ... Production-Control Produced parts, recipes, program-transmission, program-monitor,... Production Digital I/Os, analogue I/Os, pneumatic valves,... Profibus/Feb99OG/RevFeb99OG/001

5. Demands on the network Production-Planning K- to MBytes in sec./min. Production-Control Several 100 bytes in 100-300ms Production Few bytes in some ms Profibus/Feb99OG/RevFeb99OG/001

6. Mitsubishi‘s supported Networks Ethernet MELSECNET/10/H Melsecnet (II) Mesecnet B MELSEC SSCNET MELSEC I/O Link Peer to Peer

7. Structure: Mitsubishi Networks MELSEC-Networks Open-Networks Production- planning Production- control Production- level CanOpen CanOpen

9. Placement of CC-Link Standard (U.S.A) Standard (Europe) MITSUBISHI Production-control MELSECNET/ 10 PROFIBUS-FMS ControlNet PROFIBUS-DP CC-Link Field- Devices DeviceNet MELSECNET/Mini Production Sensor/ Actuators I/OLINK ASI

10. CC-Link Specifications www.CC-Link.org • Open network & Mitsubishi‘s own FA-network • Busarchitecture: shielded / twisted 3 wire. • 1200m length of cable (max. 7600m with optical repeaters). • Up to 64 stations and 2048 I/Os per segment. • Transfer rate max. 10 MBaud (2048 I/Os < 3.3 ms) • Transfer of cyclic and acyclic data. • Programming and monitoring possible with CC-Link. • Additional stand-by master for the construction of a simple redundant system.

11. AnA/AnU/QnA AnS/QnAS CC-Link supported Modules MASTER Module FX-Series Q PC External Manufacturer Intelligent Modules Robots I/O AD/DA Inverter Servos/ CNC PC FX-Series GOT Switches SLAVE Module

12. CC-Link Partner ABB A&D Co.,Ltd. Able Communications Inc. Ailes ELECTRONICS ASKA CORPORATION Bihl & Wiedemann Balluff Japan CHINO CORPORATION CKD Corporation DAIDEN CO.,LTD. DIGITAL ELECTRONICS CORPORATION Hakko Electronics Co.,Ltd. Hirata Corporation HOKUYO AUTOMATIC CO.,LTD. IDEC IZUMI Corporation IZUMI-DATALOGIC CO.,LTD. KAMACHO SCALE CO.,LTD Kawasaki Heavy Industries KOGANEI CORPORATION KURAMO ELECTRIC CO.,LTD KURODA PRECISION IND.LTD. MICOM,INC Mitsubishi Heavy industry Co.,Ltd. M-System Co.,Ltd. MTT. CO. MUTOH INDUSTRIES LTD NEC Corporation NIHON SEIGYO KIKI CO.,LTD. CORPORATION Patolight Pepperl & Fuchs RKC INSTRUMENT INC. SAMWON FA Co.,Ltd. SANTEST CO.,LTD Shimaden Shimpo SHINKO TECHNOS CO.,LTD Shinwa Co.,Ltd Siemens SHOWA ELECTRIC WIRE&CABLE CO.,LTD. CORPORATION Sumitomo Heavy Industries SUNX Limited TACHIBANA SHOKAI LTD. TAKEMOTO DENKI CORP. TAKENAKA ELECTRONIC INDUSTRIAL CO.,LTD. TAKANE Electronics Co.,Inc. TERADA SEISAKUSHO CO.,LTD TOHKEN CO.,LTD. TOYO ELECTRIC CORPORATION UNIPULSE Corporation Yamatake-Honeywell Co.,Ltd. MTS YAMATO SCALE CO.,LTD More than 256

13. CC-Link Acceptance

14. TRANSMISSION PATH BUS (RS 485), SHIELDED TWISTED PAIR CABLE Technical Data TRANSMISSION RATE 156Kbps 625Kbps 2.5Mbps 5Mbps 10Mbps TOTAL DISTANCE 1200m 600m 200m 150m 100m NUMBER OF STATIONS 64 (Max. 42 remote and 26 intelligent devices) POINTS PER NETWORK 2048 I/O, 512 Registers POINTS PER STATION 32 I/O, 8 Registers COMMS METHOD BROADCAST POLLING SYNCHRONISATION FRAME SYNCHRONISATION RAS FUNCTIONS AUTOMATIC RECOVERY SLAVE CUT-OFF LINK VERIFICATION / ERROR DETECTION

15. Wiring Remote Module Local Module Master-Module Terminal resistor Terminal resistor 110 Ohm 110 Ohm Shielded twisted pair cable Shielded twisted pair cable • shielded, twisted 3 wire cable • no T- connection • daisy chain without drops • terminators on either end We recommend to connect the shield at one side only! The resistor is part of the package of the master.

16. DA Sheath Shielding blau gelb weiß Aluminium tape DB DG Grounding point Cable We advise to use the shielded 3 cable of company Belden, Art. No.: 9925 http://bwccat.belden.com/cgi-bin/ncommerce3/ExecMacro/BELDEN/frames.d2w/report

17. Wiring CC-Link

18. Identification of the CC-Link Version CC-Link Logo (Version 1.10)

19. CC-Link T-Branch Wiring Please consider the constrictions of the transfer rate respectively the length of the spurs with this wiring (see manual).

20. Response of the 2nd station (alle stations can receive the return data) Polling to 1st station By Broadcast the data will also be sent to all other stations. Response of the 1st station (all stations can receive the return data) Polling to 2nd station By Broadcast the data will be also sent to all other stations. (2) (1)’ (2) (1) (1)’ (1) (2)’ (2)’ (n) Polling/Answer of the n. station (n)’ Broadcasting Polling Masterstation Remotestation 1 Remote station 2 Remotestation n

21. CC-Link-Moduletypes • remote I/O-Station (remote IO) - Digital I/Os (8,16,32 Inputmodule resp. 8,16,32 Outputmodule) - Data exchange: cyclic • remote Device-Station (remote Device) - Digital I/Os + Data (AD/DA Modules, FX2N, Positioningmodules, Inverter etc.) - Data exchange: cyclic • local Station / intelligent Station - Digital I/Os + Data + acyclic Data (PLC – PLC Communication, Stand-by Master, HMI connection resp. Programming, Monitoring and Diagnostics of each local PLC by CC-Link, etc.) - Data exchange: cyclic + acyclic

22. Station #4 occupied station 1 Local station A1SJ61QBT11 Station #2 occupied station 1 Remote device station FX2N-32CCL Station #1 occupied station 1 Remote IO station AJ65BTB1-16DT Example CC-Link system Station #0 Master Station RX: X1000 RY: Y1000 RWr: D2000 RWw: D1000 RX: X1000 RY: Y1000 RWr: D1000 RWw: D2000 A1SJ61QBT11 Station #3 occupied station 1 Local station A1SJ61QBT11 RX: X1000 RY: Y1000 RWr: D2000 RWw: D1000

23. Y1000-Y101F St1 Y1000-Y101F St1 X1000-X101F St1 X1000-X101F St1 Cyclic Exchange of Data (1) Remote IO Station #1 Remote Device Station #2 Local Station #3 Local Station #4 Master Remote Input (RX) Input (RX) Input (RX) Remote Output (RY) Remote Output (RY) (1)‘ X1000-X101F St1 X1000-X101F St1 X0-X1F X0-X1F Y1000-Y101F St1 Y1000-Y101F St1 X1020-X103F St2 RX0-RX1F Y1020-Y103F St2 Y1020-Y103F St2 X1040-X105F St3 Y1040-Y105F St3 Y1040-Y105F St3 X1060-X107F St4 Y1060-Y107F St4 Y1060-Y107F St4 Remote Output (RY) Remote Input (RX) Remote Input (RX) Output (RY) Output (RY) (1) Y1000-Y101F St1 Y1000-Y101F St1 Y0-Y1F Y0-Y1F X1000-X101F St1 X1000-X101F St1 Y1020-Y103F St2 RY0-RY1F X1020-X103F St2 X1020-X103F St2 Y1040-Y105F St3 X1040-X105F St3 X1040-X105F St3 Y1060-Y107F St4 X1060-X107F St4 X1060-X107F St4 Remote Register (RWr) Remote Register (RWw) Remote Register (RWw) Register (RWr) D1000-D1003 St 1 D1000-D1003 St 1 D1000-D1003 St 1 D1004-D1007 St 2 RWr0-RWr3 D1004-D1007 St 2 D1004-D1007 St 2 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1012-D1015 St 4 D1012-D1015 St 4 D1012-D1015 St 4 Remote Register (RWw) Remote Register (RWr) Remote Register (RWr) Register (RWw) D2000-D2003 St 1 D2000-D2003 St 1 D2000-D2003 St 1 D2004-D2007 St 2 RWw0-RWw3 D2004-D2007 St 2 D2004-D2007 St 2 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4

24. Y1020-Y103F St2 Y1020-Y103F St2 X1020-X103F St2 X1020-X103F St2 D1004-D1007 St 2 D1004-D1007 St 2 D2004-D2007 St 2 D2004-D2007 St 2 Cyclic Exchange of Data (2) Remote IO Station #1 Remote Device Station #2 Local Station #3 Local Station #4 Master Remote Input (RX) Input (RX) Input (RX) Remote Output (RY) Remote Output (RY) (1)‘ X1000-X101F St1 X1000-X101F St1 X0-X1F X0-X1F Y1000-Y101F St1 Y1000-Y101F St1 Y1000-Y101F St1 Y1000-Y101F St1 (2)‘ X1020-X103F St2 X1020-X103F St2 RX0-RX1F RX0-RX1F Y1020-Y103F St2 Y1020-Y103F St2 X1040-X105F St3 Y1040-Y105F St3 Y1040-Y105F St3 X1060-X107F St4 Y1060-Y107F St4 Y1060-Y107F St4 Remote Output (RY) Remote Input (RX) Remote Input (RX) Output (RY) Output (RY) (1) Y1000-Y101F St1 Y1000-Y101F St1 Y0-Y1F Y0-Y1F X1000-X101F St1 X1000-X101F St1 X1000-X101F St1 X1000-X101F St1 (2) Y1020-Y103F St1 Y1020-Y103F St2 RY0-RY1F RY0-RY1F X1020-X103F St2 X1020-X103F St2 Y1040-Y105F St3 X1040-X105F St3 X1040-X105F St3 Y1060-Y107F St4 X1060-X107F St4 X1060-X107F St4 Remote Register (RWr) Remote Register (RWw) Remote Register (RWw) Register (RWr) D1000-D1003 St 1 D1000-D1003 St 1 D1000-D1003 St 1 (2)‘ D1004-D1007 St 2 D1004-D1007 St 2 RWr0-RWr3 RWr0-RWr3 D1004-D1007 St 2 D1004-D1007 St 2 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1012-D1015 St 4 D1012-D1015 St 4 D1012-D1015 St 4 Remote Register (RWw) Remote Register (RWr) Remote Register (RWr) Register (RWw) D2000-D2003 St 1 D2000-D2003 St 1 D2000-D2003 St 1 (2) D2004-D2007 St 2 D2004-D2007 St 2 RWw0-RWw3 RWw0-RWw3 D2004-D2007 St 2 D2004-D2007 St 2 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4

25. Y1040-Y105F St3 X1040-X105F St3 D1008-D1011 St 3 D2008-D2011 St 3 Cyclic Exchange of Data (3) Remote IO Station #1 Remote Device Station #2 Local Station #3 Local Station #4 Master Remote Input (RX) Input (RX) Input (RX) Remote Output (RY) Remote Output (RY) (1)‘ X1000-X101F St1 X1000-X101F St1 X0-X1F X0-X1F Y1000-Y101F St1 Y1000-Y101F St1 Y1000-Y101F St1 Y1000-Y101F St1 (2)‘ X1020-X103F St2 X1020-X103F St2 RX0-RX1F RX0-RX1F Y1020-Y103F St2 Y1020-Y103F St2 Y1020-Y103F St2 Y1020-Y103F St2 (3)‘ X1040-X105F St3 X1040-X105F St3 Y1040-Y105F St3 Y1040-Y105F St3 Y1040-Y105F St3 X1060-X107F St4 Y1060-Y107F St4 Y1060-Y107F St4 Remote Output (RY) Remote Input (RX) Remote Input (RX) Output (RY) Output (RY) (1) Y1000-Y101F St1 Y1000-Y101F St1 Y0-Y1F Y0-Y1F X1000-X101F St1 X1000-X101F St1 X1000-X101F St1 X1000-X101F St1 (2) Y1020-Y103F St1 Y1020-Y103F St2 RY0-RY1F RY0-RY1F X1020-X103F St2 X1020-X103F St2 X1020-X103F St2 X1020-X103F St2 (3) Y1040-Y105F St3 Y1040-Y105F St3 X1040-X105F St3 X1040-X105F St3 X1040-X105F St3 Y1060-Y107F St4 X1060-X107F St4 X1060-X107F St4 Remote Register (RWr) Remote Register (RWw) Remote Register (RWw) Register (RWr) D1000-D1003 St 1 D1000-D1003 St 1 D1000-D1003 St 1 (2)‘ D1004-D1007 St 2 D1004-D1007 St 2 RWr0-RWr3 RWr0-RWr3 D1004-D1007 St 2 D1004-D1007 St 2 D1004-D1007 St 2 D1004-D1007 St 2 (3)‘ D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1012-D1015 St 4 D1012-D1015 St 4 D1012-D1015 St 4 Remote Register (RWw) Remote Register (RWr) Remote Register (RWr) Register (RWw) D2000-D2003 St 1 D2000-D2003 St 1 D2000-D2003 St 1 (2) D2004-D2007 St 2 D2004-D2007 St 2 RWw0-RWw3 RWw0-RWw3 D2004-D2007 St 2 D2004-D2007 St 2 D2004-D2007 St 2 D2004-D2007 St 2 (3) D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4

26. Y1060-Y107F St4 X1060-X107F St4 D1012-D1015 St 4 D2012-D2015 St 4 Cyclic Exchange of Data (4) Remote IO Station #1 Remote Device Station #2 Local Station #3 Local Station #4 Master Remote Input (RX) Input (RX) Input (RX) Remote Output (RY) Remote Output (RY) (1)‘ X1000-X101F St1 X1000-X101F St1 X0-X1F X0-X1F Y1000-Y101F St1 Y1000-Y101F St1 Y1000-Y101F St1 Y1000-Y101F St1 (2)‘ X1020-X103F St2 X1020-X103F St2 RX0-RX1F RX0-RX1F Y1020-Y103F St2 Y1020-Y103F St2 Y1020-Y103F St2 Y1020-Y103F St2 (3)‘ X1040-X105F St3 X1040-X105F St3 Y1040-Y105F St3 Y1040-Y105F St3 Y1040-Y105F St3 Y1040-Y105F St3 (4)‘ X1060-X107F St4 X1060-X107F St4 Y1060-Y107F St4 Y1060-Y107F St4 Y1060-Y107F St4 Remote Output (RY) Remote Input (RX) Remote Input (RX) Output (RY) Output (RY) (1) Y1000-Y101F St1 Y1000-Y101F St1 Y0-Y1F Y0-Y1F X1000-X101F St1 X1000-X101F St1 X1000-X101F St1 X1000-X101F St1 (2) Y1020-Y103F St1 Y1020-Y103F St2 RY0-RY1F RY0-RY1F X1020-X103F St2 X1020-X103F St2 X1020-X103F St2 X1020-X103F St2 (3) Y1040-Y105F St3 Y1040-Y105F St3 X1040-X105F St3 X1040-X105F St3 X1040-X105F St3 X1040-X105F St3 (4) Y1060-Y107F St4 Y1060-Y107F St4 X1060-X107F St4 X1060-X107F St4 X1060-X107F St4 Remote Register (RWr) Remote Register (RWw) Remote Register (RWw) Register (RWr) D1000-D1003 St 1 D1000-D1003 St 1 D1000-D1003 St 1 (2)‘ D1004-D1007 St 2 D1004-D1007 St 2 RWr0-RWr3 RWr0-RWr3 D1004-D1007 St 2 D1004-D1007 St 2 D1004-D1007 St 2 D1004-D1007 St 2 (3)‘ D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 (4)‘ D1012-D1015 St 4 D1012-D1015 St 4 D1012-D1015 St 4 D1012-D1015 St 4 Remote Register (RWw) Remote Register (RWr) Remote Register (RWr) Register (RWw) D2000-D2003 St 1 D2000-D2003 St 1 D2000-D2003 St 1 (2) D2004-D2007 St 2 D2004-D2007 St 2 RWw0-RWw3 RWw0-RWw3 D2004-D2007 St 2 D2004-D2007 St 2 D2004-D2007 St 2 D2004-D2007 St 2 (3) D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 (4) D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4

27. Cyclic Exchange of Data Remote IO Station #1 Remote Device Station #2 Local Station #3 Local Station #4 Master Remote Input (RX) Input (RX) Input (RX) Remote Output (RY) Remote Output (RY) (1)‘ X1000-X101F St1 X1000-X101F St1 X0-X1F X0-X1F Y1000-Y101F St1 Y1000-Y101F St1 Y1000-Y101F St1 Y1000-Y101F St1 (2)‘ X1020-X103F St2 X1020-X103F St2 RX0-RX1F RX0-RX1F Y1020-Y103F St2 Y1020-Y103F St2 Y1020-Y103F St2 Y1020-Y103F St2 (3)‘ X1040-X105F St3 X1040-X105F St3 Y1040-Y105F St3 Y1040-Y105F St3 Y1040-Y105F St3 Y1040-Y105F St3 (4)‘ X1060-X107F St4 X1060-X107F St4 Y1060-Y107F St4 Y1060-Y107F St4 Y1060-Y107F St4 Y1060-Y107F St4 Remote Output (RY) Remote Input (RX) Remote Input (RX) Output (RY) Output (RY) (1) Y1000-Y101F St1 Y1000-Y101F St1 Y0-Y1F Y0-Y1F X1000-X101F St1 X1000-X101F St1 X1000-X101F St1 X1000-X101F St1 (2) Y1020-Y103F St1 Y1020-Y103F St2 RY0-RY1F RY0-RY1F X1020-X103F St2 X1020-X103F St2 X1020-X103F St2 X1020-X103F St2 (3) Y1040-Y105F St3 Y1040-Y105F St3 X1040-X105F St3 X1040-X105F St3 X1040-X105F St3 X1040-X105F St3 (4) Y1060-Y107F St4 Y1060-Y107F St4 X1060-X107F St4 X1060-X107F St4 X1060-X107F St4 X1060-X107F St4 Remote Register (RWr) Remote Register (RWw) Remote Register (RWw) Register (RWr) D1000-D1003 St 1 D1000-D1003 St 1 D1000-D1003 St 1 (2)‘ D1004-D1007 St 2 D1004-D1007 St 2 RWr0-RWr3 RWr0-RWr3 D1004-D1007 St 2 D1004-D1007 St 2 D1004-D1007 St 2 D1004-D1007 St 2 (3)‘ D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 D1008-D1011 St 3 (4)‘ D1012-D1015 St 4 D1012-D1015 St 4 D1012-D1015 St 4 D1012-D1015 St 4 D1012-D1015 St 4 Remote Register (RWw) Remote Register (RWr) Remote Register (RWr) Register (RWw) D2000-D2003 St 1 D2000-D2003 St 1 D2000-D2003 St 1 (2) D2004-D2007 St 2 D2004-D2007 St 2 RWw0-RWw3 RWw0-RWw3 D2004-D2007 St 2 D2004-D2007 St 2 D2004-D2007 St 2 D2004-D2007 St 2 (3) D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 D2008-D2011 St 3 (4) D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4 D2012-D2015 St 4

28. 8,16,32 I/O A GOT Standby Master Function Master Standby Master (local station) Remote IO Station Remote Device Station Local Station Intelligent Station FX0N / FX2N AnS /QnAS

29. Acyclic Exchange of Data Exchange of Data up to 480 Datawords / Order Master Station Local Station CC-Link Master / Local Station RIRD Reads up to 480 datawords from a defined station. RIWT Writes up to 480 datawords to a defined station.

30. Acyclic Exchange of Data Programming, Monitoring and Diagnostics of each local station by CC-Link Master Station Local Station Remote IO Station I/Os CC-Link Intelligent Station RS422 Remote Device Station FX1N/FX2N Local Station Intelligent Station HMI (GOT)

31. Acyclic Exchange of Data Programming, Monitoring and Diagnostics of each local station by CC-Link Master Station Local Station Remote IO Station I/Os CC-Link Intelligent Station RS422 Remote Device Station FX1N/FX2N Local Station Intelligent Station HMI (GOT)

32. Aczyclic Exchange of Data Programming, Monitoring and Diagnostics of the Master Station by Local Stations Master Station Local Station Remote IO Station I/Os CC-Link Intelligent Station RS422 Remote Device Station FX1N/FX2N Local Station Intelligent Station HMI (GOT)

33. Ethernet ＭＥＬＳＥＣＮＥＴ／１０H CC-Link Ｉ／Ｏ Ｉ／Ｏ Acyclic Exchange of Data Vertical Programming by means ofdifferent Networks

34. Acyclic Exchange of Data Programming, Monitoring and Diagnostics by the Intelligent Station (RS422) Master Station Local Station Remote IO Station I/Os Intelligent Station RS422 Remote Device Station FX1N/FX2N Local Station Intelligent Station HMI (GOT)

35. Azyklischer Daten Austausch Connecting of an E-Terminal with the Intelligent Station (RS422) Master Station Local Station Remote IO Station I/Os Intelligent Station RS422 Remote Device Station FX1N/FX2N Local Station Intelligent Station HMI (GOT)

36. Acyclic Exchange of Data Connecting of an HMI (GOT) as an intelligent Station Master Station Local Station Remote IO Station I/Os Intelligent Station RS422 Remote Device Station FX1N/FX2N Local Station Intelligent Station HMI (GOT)

37. CC-Link-Connection to a PC Personalcomputer CC-Link-PC-Card Remote I/O-rack Programming and controlling by PC. Best use the software GX (IEC) Developer or MX Components.

38. CC-Link-Moduletypes

39. Limits on connected modules • Max 64 slave modules per network however the following must also be satisfied • [(1xa)+(2xb)+(3xc)+(4xd)] <= 64 • a:number of modules occupying 1 station • b:number of modules occupying 2 stations • c:number of modules occupying 3 stations • d:number of modules occupying 4 stations • [(16xA)+(54xB)+(88xC)] <= 2304 • A:number of remote I/O stations <= 64 • B:number of remote device stations <= 42 • C:number of local stations <=26

40. RAS-Functions • Reliable systems can be constructed by utilizing standard functions: • A function to disconnect slave stations • Due to a bus type connection, the entire network does not go down even though a remote or local station went down due to power off, etc.. • A defective slave station can be replaced while the network remains on-line. (The power supply to the station to be replaced must be turned off.) • Link status verification function • The network can be monitored from the master station while in the debugging or maintenance stage of the system development. • The current data link status can be monitored using the link special relay (SB) and link special register (SW) in the buffer memory. • Master station keeping track of the communication status • Diagnostic function • Hardware and cable wiring can be checked with the switch setting. RAS = Reliability, Availability, Serviceability

41. Automatic Recovery Function Disconnect Function CC-Link RAS Functions Link Status Verification Diagnostic Function Automatic Recovery Function • When a faulty station which has been cut off from the data • link due to power off, etc., recovers to the normal state, it will automatically return to the data link • Master station does not need to be resetted when an abnormal station returns to normal With MELSECNET/MINI-S3 the system goes down when a faulty station occurs. An optional bypass module is required to keep the link running.