IO-Link Master
Functionality of an IO-Link Master
Modern machines and plants are more and more equipped with sensors and actuators. The IO-Link Master is the link between SPS and the connected field devices. The standard can be used for communication with an automation system. It supports the connection of digital sensors (IO-Link Master Digital).
The system creates a point to point connection. It is different than field bus. The IO-Link Master connects devices to the automation system (SPS). The IO-Link Master can communicate with secondary IO-Link Master components via field bus. The connection to the superior control level is realized via Industrial Ethernet. Equivalent to the number of channels, multiple field devices can be connected to an IO-Link Master. Depending on the level of safety for which the device is made, IO-Link Masters can be installed in the control cabinet or close to the field device. By using IO-Link Master Digital, field devices with a digital output are connected. Field devices with an analog output can be connected using IO-Link Master Analog capable components. Therefore, a maximum of possibilities to communicate with the entire range of standard sensors and actuators is guaranteed.
Order IO-Link Master Products here:
With Ethernet/IPConnection Technology
A differentiation is being made between Port Class A and Port Class B. Devices with a higher power demand up to 200 mA can be powered via Port Class B. Three different rates of transmission are specified. The device is set up for one of these rates of transmission. In contrast to that, IO-Link Master components can be connected to devices with all specified rates of data. The reaction time is specified in the minimum cycle time of the device description file IODD. One master may be connected to devices with different minimum values for the cycle time.
Connection Line
A line up to 20 m long can be used to connect the field device. A coating is not required. By doing this the cost of signal transmission is lowered while the accuracy of the transmitted process data is increased.
IO-Link Master Digital
For the connection of IO-Link Master Digital components in the field such as sensors that output a digital signal, input and output modules in different designs are available. Depending on the type even the connection of standard sensors to a IO-Link Master Digital module is possible.
Product Overview