6 Things You Should Know About IO Link

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.

6 Things You Should Know About IO Link

IO Link has been developed taking into account the global standard IEC 61131-9.

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.

6 Things You Should Know About IO Link

IO-Link data transmission rate

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.


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.

6.3 Standardization

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.

6 Things You Should Know About IO Link

IO Link is compatible with all related FieldBuses.


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2 Responses

  1. July 3, 2020

    […] 6 Things You Should Know About IO Link […]

  2. August 13, 2020

    […] for both data collection and data distribution, it puts its power ahead of us. The prominent IO-Link communication standard; It provides a unique data flow from sensor level to control level. This […]

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