CiA 408 defines the CANopen-based control interface for valves including device state management, control signals, and common device parameters. This article introduces CiA 408, describes a valve controller deployment, and discusses deployment with experiences from real-system projects.
Tag Archive for: CANopen
https://tke.fi/wp-content/uploads/2023/09/CANopen-controller.jpg 320 840 Susanna Leppälä https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Susanna Leppälä2023-09-06 13:55:572024-02-05 12:34:20CANopen controller for independent metering control valves
https://tke.fi/wp-content/uploads/2023/09/CANopen-controller.jpg 320 840 Susanna Leppälä https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Susanna Leppälä2023-09-06 13:53:312023-09-12 10:39:06Publication of the CAN Newsletter magazine
CAN in Automation (CiA) has published Heikki Saha article about CANopen controller for independent metering control valves.
CiA 408 defines the CANopen-based control interface for valves including device state management, control signals, and common device parameters.
https://tke.fi/wp-content/uploads/2023/03/AdobeStock_342206176.jpg 800 1280 Susanna Leppälä https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Susanna Leppälä2023-03-06 13:42:342023-09-13 11:38:58New TKE-office in Tampere
New TKE-office in Tampere
We have a new TKE-office in a central location in Tampere, at Kauppakatu 3. Tampere office opened at the beginning of March to better serve customers in the Tampere region.
https://tke.fi/wp-content/uploads/2022/09/case-study-translifter-control-systems.jpg 320 840 Susanna Leppälä https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Susanna Leppälä2022-09-07 14:47:272024-01-04 15:53:17Case study: Translifter Control System
TK Engineering, a specialist in distributed control systems, has developed a control system solution for a translifter implementation. Contik approached TKE to design and develop a control system solution for a prototype translifter project. The customer was in the process of developing a new line of translifters with better performance, cost effectiveness and reliability. Read more
https://tke.fi/wp-content/uploads/2021/11/CANopen-ConfTool-2.1.4-Version-Release.jpg 320 840 Susanna Leppälä https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Susanna Leppälä2021-11-25 15:12:252022-07-22 10:15:20CANopen ConfTool 2.1.4 Version Release
New version of CANopen ConfTool has been released. CANopen ConfTool is specially designed for efficient production line and service operations. Its easy-to-use tool that helps the user to configure nodes for the correct target position in the system by using XML configuration files together with DCF and EDS files. Read more
https://tke.fi/wp-content/uploads/2020/04/cantrace-3-17-released.jpg 320 840 Tinke https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Tinke2020-04-30 11:35:052021-09-02 13:28:57CANtrace 3.17 Release adds playback of log files to the CAN bus
We have reached the Next Level – Cantrace 3.17 Released
This release adds playback of log files to the CAN bus, which can be used for simulation, testing and bus traffic generation. Any log file in ASC format can be used to generate data on the CAN bus. For those working with J1939 this release adds masking of priority bits in J1939 databases. This allows using the default priority in the database, while still matching messages on the bus that uses a different priority. This feature works well with the included J1939 database, which in this release has been enhanced with the DM1 and Address Claimed messages, which are common in J1939 networks. Read more
https://tke.fi/wp-content/uploads/2020/04/analysis_residual_errors.jpg 320 840 Tinke https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Tinke2017-06-21 14:55:212021-09-06 09:14:16Analysis of residual error and their consequences in CANopen systems
Residual error analyses for CAN networks have been performed for years. It is well documented, that commonly used equations do not fully apply for analytic computing of the residual error probability of CAN networks. Also too high bit error probability values have commonly been used in the analyses. Furthermore, CANopen networks have been analyzed as CAN networks, without taking into account the additional safeguards provided by various CANopen services. Results have been very pessimistic, which has lead to significant unnecessary cost and complexity in various applications.
https://tke.fi/wp-content/uploads/2020/07/physical-layer-really-matters-in-can.jpg 731 1920 Tinke https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Tinke2016-01-17 11:36:382022-08-24 15:44:40Physical layer really matters in CAN
Despite of the comprehensive knowledge of the CAN physical layer, there is poor tradition in design of physical layer structures for industrial and machinery CAN networks. Cables with “wrong” impedance (not matching with termination) are commonly used and many engineers intentionally select them, because of constrained understanding of the transmission line behavior.
https://tke.fi/wp-content/uploads/2020/06/canopen-safeguards.jpg 320 840 Tinke https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Tinke2015-01-29 13:04:202023-09-06 13:58:53CANopen safeguards to decrease the effect of residual errors further
In many applications, complex safety add-ons have been designed on top of existing control systems, which has lead to significantly increased complexity and costs. The most significant increase of the performance level can be achieved by replacing all analog signal paths with digital communication: as long as an error can be detected and a control system can perform a reliable reaction, the error cannot cause any harm. When typical failures of systems are analyzed, it is obvious that analog signal paths are the weakest point of any control system.
https://tke.fi/wp-content/uploads/2020/05/systematic-re-use-of-information.jpg 320 840 Tinke https://tke.fi/wp-content/uploads/2022/10/tke_logo.png Tinke2014-05-07 12:02:352021-09-06 14:03:12Systematic re-use of information
Systematic re-use of information and design processes defined by the selected system integration framework, such as CANopen, should be understood as an integral part of companies’ design, assembly and service operations, instead of “just another communication protocol” in individual control systems. There are many use cases for such kinds of system integration framework in system design, assembly and service activities.