网络和现场总线组件的常见问题解答

IO-Link（输入输出链路）是实现与传感器和执行器通信的首款标准化 IO 技术。系统在 IO-Link 主站与传感器之间使用点对点连接。这时，主站的每个端口都有一个特定的地址。

了解 IO-Link 的更多信息

IO-Link 具有多种优势：

• 唯一标识符：可以清楚、简便地识别设备。

• 数据保存：设置和配置会自动保存，更换设备时可以快速恢复。

• 状态监测：持续状态监测可实现预防性维护，并可提高设备利用率。

• 混合环境和现场总线的独立性：IO-Link 工作不受制造商的影响，并且不受特定现场总线的影响。

• 以数字方式传输数据：以数字方式传输数据可靠、无损失。

• 可集成到自动化系统中：可无缝集成到现有自动化环境。

使用 IO-Link 可以传输以下类型的数据：

• 过程数据：温度、压力和流速等测量值

• 服务数据：设备状态或诊断信息

• 参数数据：配置数据

• 事件数据：有关特定事件或状态的警告和通知，如维护需求或故障

否，IO-Link 基于直接点对点连接。

IO-Link 系统由三个主要组件组成：

• IO-Link 主站：IO-Link 主站将支持 IO-Link 的设备（传感器和执行器）与控制系统连接起来。

• 控制系统：控制系统（例如 PLC 或 IPC）处理 IO-Link 主站和连接设备传送的数据。

• 传感器 / 执行器：当执行器执行开关或移动等操作时，传感器测量温度、压力或位置等物理变量。它们通过 IO-Link 主站与控制系统相连。

IO-Link 支持三种标准化的通信速度：COM1、COM2 和 COM3。数据速率为 4.8 kbps（COM1）、38.4 kbps（COM2）和 230.4 kbps（COM3），其中 COM3 提供的传输速度最高。

IO-Link 是一个数字接口，用于以数字形式传输数据。这可确保精确、无损失和可靠的通信。

几乎所有 wenglor 传感器都配有 IO-Link 接口，并支持最新版本的 IO-Link 1.1 标准。

关于 IO-Link 传感器产品系列

The IODD is used by software tools as a device description and includes, among other things, the identification as well as the process and diagnostic data of an IO-Link sensor. The IODD is used to clearly describe the sensor and the respective software can convert the sensor signals into a readable form. This takes place in the background, for example, with the wTeach parameter programming software or in the web server of an IO-Link master.

IO-Link products can usually be identified by the corresponding marking in the technical data or product description. IO-Link products from wenglor are provided with an IO-Link logo or a note on compatibility. They also have standardized plug connectors and support specific IO-Link functions such as parameterization, condition monitoring or data storage. A look at the data sheet or the operating instructions also provides clear information on whether a product is IO-Link-capable.

IO-Link products from wenglor can be found via the website using the product search and specific filter options for IO-Link-capable products. The IO-Link compatibility is also specified on the product detail pages and in the data sheets. The products are also often marked with an IO-Link logo or corresponding information. 

Yes, an IO-Link sensor can be connected to a hub. In this case, however, the IO-Link functionality is not available and the sensor functions as a digital switching sensor.

A digital input or output can be connected to a port via pins 2 and 4. This allows each of the 8 ports to be used for two digital IOs.

A wenglor IO-Link hub can provide up to 16 digital inputs and outputs, as each port of the hub supports two digital IOs. As a hub can be connected to each master port, there are a total of 128 digital inputs and outputs per IO-Link master with 8 hubs and 16 digital IOs per hub.

There are several ways to parameterize wenglor IO-Link sensors:

• Directly on the sensor

• With the wTeach parameter programming software

• Via the integrated web server of the IO-Link master

• Via the program logic of the control system (PLC)

Yes, wenglor’s IO-Link masters offer the option of parameterizing each port individually. This allows you to define how each port is to be used, allowing for flexible adaptation to your specific requirements.

wenglor’s IO-Link converter converts analog signals into digital signals, which can then be processed via an IO-Link master port.

To the IO-Link converter

The interface protocol defines which parameters are variable and which values are possible for each wenglor IO-Link sensor. It also describes the structure of the transmitted data.

Various industrial Ethernet protocols are available for wenglor IO-Link masters to enable integration into different automation networks. Supported protocols include:

• PROFINET 

• Ethernet/IP 

• EtherCAT

wenglor’s IO-Link technology is not only suitable for new systems, but is also ideal for modernizing and maintaining existing systems. Even with a retrofit, you take advantage of benefits such as condition monitoring and easy initial startup.