Uusiteknologia 01/2018

Uusiteknologia.fi is new Finnish language electronics and technology professionals magazine.

In the newest issue have written articles on four topics (text in Finnish with short introduction in English).

Here are the topics:

USB-C: The USB Type C is the latest USB connector type especially for portable devices. The new USB version offers higher data rates (up to 20 Gbps) and greater power transfer potential (up to 100W). According to forecasting agencies, more than two billion USB C port devices would be delivered by 2020. The article article has design information for application of USB-C. Also included is information on development programs, test cards, and test and measurement equipment.

TSN: Time Sensitive Networking (TSN) is a new standard that makes it easier to provide real-time information reliably via an optimized Ethernet network. TSN consists of IEEE 802 Ethernet standards that are defined by the IEEE TSN team. The set of standard contains improved versions of current as well as entirely new technology.  TSN reaches determinism with time synchronization, traffic scheduling, traffic prioritization as well as optimized processing in network switches and network cards. TSN can be guaranteed timing of critically scheduled communication. This will enables all traffic categories and multiple applications convergence into one network.

PoE: With PoE (Power over Ethernet) technology, an Ethernet cable can carry power in addition to data. PoE can supply operating voltage to PoE compatible networked devices, such as a WLAN base station, an IP camera, a VOIP phone or IoT device. Current IEEE standards can handle maximum power up to 30 watts and non-standardized solutions up to 60 watts. This power is already enough to enable IoT LED lighting to be powered through the data cabling. New IEEE 802.3bt standard that will be completed in 2018 will increase maximum power to almost 100 watts. The new IEEE802.3bt standard will increase the available power for the first time by using all four wire pairs in Ethernet cable.

IPv6: IPv6 is a new Internet protocol version that has been coming soon for nearly 20 years. A new protocol has been introduced because lack of free IPv4 addresses. There are currently about twice as many devices on the Internet as the current address of the IPv4 protocol supports, and the number of devices is expected to double in the next few years. IPv6 promises to solve the clutter but it’s just one small thing in the big picture. The IPv6 protocol is a necessary technology to be able to use the new opportunities promised by the 5G network and IoT. IPv6 offers the ability to flexibly connect between IoT devices without compulsory cloud connection.

Go to Uusiteknologia.fi page to read the newest issue.

2 Comments

  1. Tomi Engdahl says:

    Four ways TSN can boost manufacturing productivity
    https://www.controleng.com/articles/four-ways-tsn-can-boost-manufacturing-productivity/?oly_enc_id=0462E3054934E2U

    Time-sensitive networking (TSN) can help manufacturers boost productivity by simplifying machine design, improve transparency and more.

    Time-sensitive networking (TSN) can help enable Industry 4.0 applications and bring data transfer to the next level. While TSN adoption is still in its early stages, with future-oriented businesses picking up the pace, this technology holds enormous potential for numerous manufacturing sectors. Manufacturers can realize its potential in these four ways:

    1. Simplified machine design and higher performance for the converting sector
    2. Transparency and traceability for food & beverage
    3. Better quality for automotive assembly plants
    4. Higher levels of semiconductor manufacturing integration

    More than TSN

    While TSN offers a number of advantages to manufacturers per se, it provides a comprehensive solution when combined with an open network technology that offers high bandwidth. In this way, businesses are able to handle the large volume of data Industry 4.0 applications will generate. As a result, they can further enhance network reliability, productivity and quality assurance strategies. By relying on this cutting-edge network technology, manufacturers from any sector can find a key solution to boost their processes.

    Reply
  2. Tomi Engdahl says:

    Functional safety networks for Ethernet communication protocols
    PROFIsafe extends the Profinet communication protocol to address unique requirements for safety-related information necessary to conform to strict safety standards.
    https://www.controleng.com/articles/functional-safety-networks-for-ethernet-communication-protocols/?oly_enc_id=0462E3054934E2U

    Functional safety (fail-safe) is the overall part of safety which aims to prevent hazards due to the incorrect functioning of industrial machinery. Traditionally, functional safety systems relied on separately wired circuits that are expensive to build, commission, and maintain. Nowadays, functional safety can be done over the fieldbus, shifting from safety in hard relays to safety in logic.

    PROFIsafe can provide functional safety over the bus. It is designed to eliminate the need for a separate safety network and reduces industrial network architectures to one bus. PROFIsafe extends the Profinet communication protocol to address unique requirements for safety-related information necessary to conform to strict safety standards.
    Functional safety standards

    PROFIsafe ensures the integrity of fail-safe signals transmitted between safety devices and a safety controller, meeting relevant safety standards. That includes the highest safety categories: up to SIL3 according to IEC 61508/IEC 62061, and Category 4 according to EN 954-1, or PL “e” according to ISO 13849-1.
    Network components and implementation

    Not all Profinet devices support PROFIsafe. Therefore, the user must carefully select safety components. During implementation, the user selects the elements within the network that require safety; only those network components require PROFIsafe capabilities. As shown in the figure, the overall network configuration may contain a mix of fail-safe (yellow) and standard (gray) components. Also, PROFIsafe is designed to work independently of the base transmission channel, whether that channel is copper wire, fiber optics, wireless, or a backplane.

    PROFIsafe components are commonly called F-components (fail-safe). The following are PROFIsafe elements in an F-system:

    The F-GSD file (General station description file: Profinet device description provided by the device manufacturer) contains all the information to allow an F-controller to set up and communicate with the device. A cyclic redundancy check (CRC) protects the F-GSD file to ensure its safety conformance.
    The F-config tool is the programming environment. It uses F-GSDs to create and download the system configuration and F-program to the F-controller. The F-program and configuration are subject to PROFIsafe safety checks to ensure correct functioning.
    The F-controller executes the safety program.
    F-Devices use hardware safety techniques to ensure their safe operation. Input/output (I/O), light curtains, valves, and drives are a few examples of F-devices.

    Reply

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