CC-Link Open Automation Networks
CC-Link Family of Open Automation Networks | |
---|---|
Governing body | CC-Link Partner Association |
Protocol information | |
Type of network | Open fieldbus and industrial Ethernet |
Physical media | RS485, optical fiber, Ethernet |
Network topology | bus, star, ring, line (depending on type) |
Device addressing | DIP Switch (fieldbus) or software |
The CC-Link Open Automation Networks Family are a group of open industrial networks that enable devices from numerous manufacturers to communicate. They are used in a wide variety of industrial automation applications at the machine, cell and line levels.
History
The CC-Link Partner Association (CLPA) offers a family of open-architecture networks. These originated with the CC-Link fieldbus in 1996 [1], developed by Mitsubishi Electric Corporation. In 2000[2], this was released as an “Open” network so that independent automation equipment manufacturers could incorporate CLPA network compatibility into their products. In the same year, the CC-Link Partner Association (CLPA) was formed to manage and oversee the network technology and support manufacturer members. In 2007[3], the CLPA was the first organisation to introduce open gigabit Ethernet for automation with CC-Link IE (Industrial Ethernet). In 2018[4], the CLPA was the first organisation to combine open gigabit Ethernet with Time-Sensitive Networking (TSN) as CC-Link IE TSN. As of May 2020, over 2,100 CLPA compatible products from more than 340 automation manufacturers were available. CLPA offers a variety of open automation network technologies. These are the CC-Link fieldbus, CC-Link Safety fieldbus, CC-Link IE and CC-Link IE TSN. Compatible products include industrial PCs, PLCs, robots, servos, drives, valve manifolds, digital & analogue I/O modules, temperature controllers, mass flow controllers and others. As of May 2020, there was approximately 30 million devices installed worldwide.
Standardization
CLPA has obtained the following certifications[5] for its open network technologies:
- ISO standards: ISO15745-5 (CC-Link, January 2007)
- IEC standards: IEC61158 (CC-Link IE, August 2014), IEC61784 (CC-Link & CC-Link IE, August 2014), IEC61784-3-8 (CC-Link Safety, August 2016)
- SEMI standards: SEMI E54.12 (CC-Link, December 20010, SEMI E54.23-0513 (CC-Link IE Field, May 20130
- Chinese National Standards: GB/Z 19760-2005 (CC-Link, December 2005), GB/T 20229.4-6 (CC-Link, December 2006), GB/Z 19760-2008 (CC-Link, June 2009), GB/Z 29496.1.2.3-2013, GB/T 33537.1~3-2017 (CC-Link IE, April 2017), GB/Z 37085-2018 (CC-Link IE Safety, December 2018)
- Japanese Industrial Standards: JIS TR B0031 (CC-Link Safety, certified May 2013)
- Korean National Standards: KBS ISO 15745-5 (CC-Link, March 2008)
- Taiwan Standard: CNS 15252X6068 (CC-Link, May 2009)
Technical overview of the CC-Link Family of Open Automation Networks
CC-Link:
- Max.10 Mbit/s network transmission
- Based on RS485 with networks up to 1.2 km, or extended to 13.2 km with repeaters
- 64 stations per network
- Refresh time of <3.9mSecs for 65 I/O stations (distance dependent)
- Master/Slave network with Floating Masters and hot swap of stations
CC-Link Safety:
- Max.10 Mbit/s network transmission
- Based on CC-Link
- Can combine Safety devices with standard devices on the same network
- Compliance with IEC 61508 SIL3 and ISO13849-1 Category 4
CC-Link IE Control:
- Dual redundant 1 Gbit/s fibre-optic or Ethernet based network
- 120 stations per network (Master station: 1, slave station: 119)
- 550 meters between stations
- Completely deterministic
CC-Link IE Field:
- 1 Gbit/s Ethernet based network
- Ethernet physical layer (Category 5e or higher, straight cable with double shielded, STP)
- 121 stations per network (Master station: 1, slave station: 120)
- 100 meters between stations
- Completely deterministic without using switches
CC-Link IE TSN:
- Based on CC-Link IE with Time-Sensitive Networking (TSN) capabilities added
Conformance Testing
All certification testing[6] for CLPA networks is carried out by the CLPA and is compulsory in order to ensure that devices manufactured by suppliers meet the strict technical performance standards. These include noise resistance and correct communication functionality. To declare product as CLPA certified, a vendor needs to successfully test their product at one of the CLPA test laboratories situated in the USA, China, Korea, Japan or Germany.