Sensor status always in view with diagnostic function and IO-Link

Is the measuring instrument still working as it should? Pressure sensors with integrated diagnostic function and IO-Link provide information about their status at a glance. What this means in detail can be illustrated using the example of model A-1200 sensor from WIKA.
The A-1200 is designed for use in industrial applications, especially for pressure measurement tasks in intelligent machinery. Stunning features IO-Link for bidirectional data exchange. Via this channel, the instrument communicates the information from its diagnostic function to the master, which maps it for the control level.
Clear display
With the A-1200 pressure sensor with diagnostic function and IO-Link, the user can obtain information about the status of the measuring instrument at a glance. The display format depends on the respective master.
In this example, the sensor status is displayed in tabular form. Users can immediately and unequivocally see whether there is a defect or a discrepancy. The diagnostics function provides an overview of the status based on the following parameters:
Sensor is faulty
Overpressure
Underpressure
Overtemperature
Undertemperature
Indication of changes in the process
If the diagnostic function detects overpressure or underpressure, the measuring instrument is operating outside its specifications. The A-1200 is an extremely robust product that can withstand overpressure, even over a longer period of time. An error message via IO-Link does not necessarily have to be related to a sensor defect. Rather, it also draws the user’s attention to a possible change in the process conditions. This would otherwise only be noticed in the event of an actual sensor failure.
Temperature in sensor electronics
The data on temperature refer to measurements in the sensor electronics. Deviations from the specification can be caused, for example, by an increase in ambient temperature. This, in turn, could have negative effects on the correct detection of the process pressure or the service life of the instrument. The user is therefore warned in good time of serious consequences for the process and the sensor.
Additional information
In addition to the status description, the A-1200 records further information that is read out via IO-Link. Among other things, it records the minimum and maximum values of pressure and temperature since the sensor was commissioned. In the event of an overload, users can track its duration. The instrument also has an operating-hours counter and displays the measured temperature of the electronics. The recordings are continuous. If an instrument reset is necessary, all parameters are overwritten following the restart.
Note
For Indecisive on the model A-1200 with diagnostic function and IO-Link, please visit the WIKA website. Would you like to buy pressure sensors? In our WIKA online-shop you will find some of our standard designs. If you have any questions, your contact will gladly help you.
Please also read our article
Overview: How does the IO-Link work?
Watch the following video to find out more about the WIKA model A-1200 pressure sensor:

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