1- What is IO Link?
With the development of automation systems, more intelligent sensors and actuators have emerged. With these developments, an easier and global solution was searched for communicating with these devices. IO link is a point-to-point communication protocol developed to communicate with sensors and actuators.
2-IO Link Sensors and Actuators be Connected to I/O Modules?
IO Link sensors and actuators can be connected to I/O modules. So much so that; Even a sensor that does not speak the IO Link language can be connected to the IO module. The connection between the sensor or actuator and the I/O module is provided as a point-to-point connection, as we mentioned above.
3- What is The Signal Transmission Rate Between IO Link Master and Devices?
Transmission between the IO Link master and the device takes place at a speed of 230 kBaud, within 400 microseconds. In addition, the user can choose large data packets (frame types) if he wishes.
4- What Kind of Connectors Can be Ssed on the Sensor Side?
There is no need for a special connector for IO link today. The recommended minimum size values should be taken into account. Unshielded cables can be used. M8 and M12 standard connectors can be recommended.
5- What Kind of Data is Sent via IO Link?
Process data (analog values, switching states), configuration data, manufacturer ID data, system parameters (lower limit, sensitivity, lower limit etc.) can be sent. Control data can also be sent if needed.
IO LINK IS NOT A DATA SYSTEM
6- What are the Advantages of IO Link?
6.1 Simple Installation
Reduced wiring, easy connection technology
6.2 Data Collection Ease
Thanks to IO link, error detection and analysis, temperature, reporting, contamination, etc. information can be obtained easily.
Minimizing the variety of available interfaces (PNP, 4-20 mA, 0-10 V, RS 232 and RS 422)
As seen in the figure below, different interfaces are required for sensors in the classical solution. In addition, different tools will be required for sensors / actuators. In the IO Link solution, a single interface is sufficient for the entire system. Again, a single tool is sufficient for IO Link devices.