Siemens SIMATIC ET 200AL Manual page 24

Parameters/address space
4.2 Explanation of the parameters
Port Qualifier Information (PQI)
You can enable the Port Qualifier Information (PQI) for your IO-Link master as of firmware
version V1.1.
Note
Port Qualifier Information (PQI)
If you have enabled the Port Qualifier Information (PQI), this information is always sent with
the size of 1 byte together with the input data of the IO-Link device.
The following figure show the structure of the PQI byte.
You enable a parameter by setting the corresponding bit to "1".
Figure 4-1
Reference
For more information, please refer to the IO-Link system
(http://support.automation.siemens.com/WW/view/en/65949252) function manual.
24
Structure of the PQI byte
Communication module CM 4xIO-Link 4xM12(6ES7147-5JD00-0BA0)
Manual, 10/2017, A5E32352322-AE