-
Regular price 255,00 EURRegular priceUnit price per
0,00 EUR
Sensing the world
Welcome to our store
IO-Link sensors and transmitters from octogon optimize data acquisition and data transmission in almost all industrial applications, thereby achieving improved process control and efficiency for our customers. IO-Link can be used to simultaneously transmit several process values or parameters from one device via an unshielded standard cable. IO-Link is internationally standardized and works with all common fieldbuses and controllers.
With a view to the requirements of Industry 4.0 applications, the digital point-to-point connection IO-Link offers a manufacturer-independent, fieldbus-independent communication technology that offers a wide range of options for the intelligent connection of sensors and actuators to the control level of an automation system and the communication between the system control and the field level. Our technical sales staff are of course happy to provide you with further information at any time.
A typical system structure consists of an IO-Link sensor or actuator, an IO-Link master and a higher-level system (PLC). In the application, a device is connected to each of the IO-Link ports of the master. The master is either integrated directly into the PLC or is installed in the field. In the second case, it sends the information to the higher-level systems using Profinet, Ethernet-based field buses, OPCUA or other protocols. IO-Link enables consistent bidirectional communication from the machine level through the control level to the lowest field level.
IO-Link functionality: IO-Link is a powerful point-to-point communication between an IO-Link device and the IO-Link master. The master serves as the central interface between devices and the PLC and regulates the data exchange. When an IO-Link-capable device is connected to a master, a "wake up" command is sent and activates the IO-Link operating mode. The master exchanges data bidirectionally with the device via the IO-Link interface. In the IO-Link standard, data exchange is divided into cyclic and acyclic process data. Cyclic process data is transmitted repeatedly and at short intervals that depend on the cycle time of the IO-Link device. Cyclic information is, for example, measured values from a sensor or the device status. This information is used to control and regulate the machine and is mostly sent to the PLC and processed via a fieldbus. The acyclic data is only transmitted on request from the master. Using IO-Link commands, parameters can be written and read or diagnostic data can be read out. Acyclic data is often used to optimize processes and investigate faults.
IO-Link products have an a-coded, 4-pin M8 or M12 connector, which was already established in the field of sensors and actuators before IO-Link. A sensor without IO-Link requires one wire in the connecting cable for each process variable that is to be transmitted. IO-Link is a digital interface and transmits all information via a single wire. Shielding of the cable is not required. Incorrect transmissions are almost impossible. The IO-Link protocol can be transmitted up to 20 meters over the cable. The hurdle to using IO-Link technology is therefore low for the end user. IO-Link applications can be implemented more easily and the integration of intelligent sensors into existing systems is almost seamless. In addition, wiring effort and complexity are greatly reduced and at the same time project costs are reduced. IO-Link communication takes place via a single wire on pin 4. Pin 1 and pin 3 are used for the power supply. Other signal forms, such as analog signals or switching outputs, can be transmitted on pin 2 in addition to the digital IO-Link signal. This enables fast processes or existing analog interfaces to be operated, while the advantages of IO-Link such as parameterization can be used at the same time. This concept is also called Y-path or IO-Link dual channel.
