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Process flow for developing CC-Link IE TSN compatible products

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Process flow for developing CC-Link IE TSN compatible products

Development procedure for CC-Link IE TSN compatible products.

Steps when considering development

Steps when considering development
  • Some of the items to be considered during development are different for recommended wiring components, such as Ethernet switches, cables, and connectors.
  • "SDK" is an abbreviation for Software Development Kit.

Step 1Select the station type

Manager station

A station that manages a network. A station that contains control information (parameters) and controls device stations* and other manager stations through cyclic transmission and transient transmission.

  • Device stations : A general term other than manager stations such as local stations and remote stations.
Compatible devices (example)

Local station

A station capable of n:n cyclic transmission with the manager station and other local stations, 1:n cyclic transmission with other stations, and transient transmission with other stations. It has a server function and client function for transient transmission.

Compatible devices (example)

Remote station

A station capable of 1:n cyclic transmission, and transient transmission with other stations. It has a server function and client function for transient transmission.

Compatible devices (example)

Step 2Select the certification class

CC-Link IE TSN has different certification classes depending on the functions and performance of the device (node) and Ethernet switches.
Certification classes include A and B, with B being the higher function.

Device

It is recommended to develop certification class B products that have a wide variety of applications. Develop certification class A products only when modifying the software of existing products (not supporting TSN).

● : Implementation required
- : Implementation not required

Certification classes for devices

No. Functions Conditions Certification class
A B
1 Reception/Relay Full rate reception/relay (*1、*2) - ●
2 Supported standards IEEE802.1AS compliant - ●
IEEE1588 compliant - - (*5)
IEEE802.1Qbv compliant - ●
3 Synchronization accuracy 1 μs or less - ● (*4)
4 Communication method Time sharing method - ●
Time managed polling method ● -
5 Cyclic transmission VLAN ● ● (*6)
Unicast ● ●
Broadcast/Multicast - (*3) ●
6 Transient transmission NRSV-Transient ● ●
  • *1:1 port: Receive, 2 ports or more: Receive and relay
  • *2:The communication speed does not matter if it is 100 Mbps or higher.
  • *3:Implementation is required for local stations
  • *4:To guarantee the accuracy of 1 μs for the time synchronization, configure a system only with certification Class B products. In this case, do not place a certification Class A product (including a Ethernet switches) between certification Class B products.
  • *5:When the protocol version is 1.0, implementation is required. For details, please refer to CC-Link IE TSN Specifications (Overview).
  • *6:When the protocol version is 1.0, implementation is not required. For details, please refer to CC-Link IE TSN Specifications (Overview).

The manager station must be able to communicate with both certification Class A device stations and certification Class B device stations.
Device stations must be certification Class A or certification Class B products and be able to communicate with the manager station.

No. Functions Protocol version 2.0 Protocol version 1.0
1 Communication method (*) Time sharing method
Time managed polling method 		Time sharing method
2 Supported standards IEEE802.1AS compliant IEEE802.1AS compliant
IEEE1588 compliant
3 Cyclic transmission VLAN required VLAN optional
  • In the time-sharing system method, the synchronized time at each station is utilized to transmit simultaneously in both directions, whereas in the time managed polling method, cyclic frames are transmitted to the manager station after the device stations receive cyclic frames.

Ethernet switches

● : Implementation required
- : Implementation not required

Certification classes for Ethernet switches

No. Functions Conditions Certification class
A B
1 Link up/Relay 1000BASE-T(IEEE802.3ab) compliant ● (*) ● (*)
100BASE-TX(IEEE802.3u) compliant
Auto MDI/MDI-X ● ●
Auto negotiation ● ●
2 Supported standards IEEE802.1AS compliant - ●
IEEE1588 compliant - -
3 Synchronization accuracy 1 μs or less - ●
4 Time aware Queuing IEEE802.1Qbv compliant - ●
  • Either one or both classes must be supported.

Step 3Select the development method

Extensive lineup of supported products

Various types of product development are supported, from high-performance devices implemented on dedicated ASIC/FPGA to low-cost devices implemented on general-purpose Ethernet chips using software protocol stacks.

Types

Development tool pc icon PC board Module icon Embedded Module Module icon Dedicated Communication LSI Module icon SDK
Hardware / Software Hardware Hardware Hardware Software
Use Connects to PCI or PCI Express interface. Connects user boards and embedded interface boards via a general-purpose bus (e.g., 16 bit parallel bus). Based on the interface specifications of the released communication LSI, users can mount it on the board. Implements the released software into devices compatible with general-purpose Ethernet communication.

Duration and cost will vary depending on the development method selected.

development types

Differences in Communication Accuracy between Product Combinations

Combination examples Hardware-developed manager station, Hardware-developed device station Software-developed manager station, Hardware-developed device station Hardtware-developed manager station, software-developed device station Software-developed manager station, software-developed device station
Communication speed 1 Gbps 1 Gbps 100 Mbps 100 Mbps
Communication accuracy

Step 4Select the development location

Develop in-house

Various development methods can be used to internally develop communication interfaces.

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Use a contracted development manufacturer

As one of the methods of clearing the technical and personnel issues in internal development, it is possible to commission a manufacturer to develop communication interface hardware and software.

CC-Link IE TSN development tool partners

Partners Station type Certification classes Development tool
Module icon
Built-in Module		 LSI icon
Communication LSI		 sdk icon
SDK
HMS Industrial Networks Remote station B ●    
Mitsubishi Electric Corporation Manager / Local station B   ●  
Remote station B/A   ●  
port industrial automation GmbH Manager B     ●
Remote station B/A     To be released soon
Renesas Electronics Corporation Remote station B   ●  
SILA Embedded Solutions GmbH Remote station B     To be released soon

PC board is under consideration by partners.
For details, please check Introducing Development Tool.

Partners under consideration for development include:

Analog Devices hilscher NXP Semiconductors Texas Instruments Incorporated

Sample codes and tools to support development

Sample code and tools to support CC-Link IE TSN development are available free of charge.
Members can download these from CLPA website free of charge.

Sample code for CC-Link IE TSN remote station Class A

Features

  • Compact sample code for remote stations
  • Software and API design enables easy application to Industrial Ethernet and CC-Link IE Field Network Basic devices
  • Free download from CLPA website
Features

Development environment

No. Item Product name Version Manufacturer
1 Evaluation board NUCLEO-F439ZI (*) － ST-Microelectronics
2 Integrated development environment STM32CubeIDE 1.7.0 ST-Microelectronics
3 OS FreeRTOS V10.3.1 Amazon Web Services
4 IP stack lwIP (lightweight IP) 2.1.2 IwIP Developer Group
NUCLEO-F439ZI

NUCLEO-F439ZI
(STMicroelectronics)

  • On-board microcontroller (STM32F429ZIT6)

Frequency :180 MHz
CPU :ARM Cortex-M4
Flash :2,048 Kbyte
RAM :256 Kbyte

Related Menus

Click here to see more on about Sample Codes

CC-Link IE TSN Wireshark plugin

CC-Link IE TSN Wireshark plugin makes it possible to simplify the display of CC-Link IE TSN protocol packet data on Wireshark. This greatly helps users to analyze data packets of protocols.

Related Menus

Click here to download plugin