Q: Do the DP2302, DP2122 and DP2402 require a master to operate?

The DP2302 , DP2122 and DP2402 are IO-Link enabled devices. Using IO-Link, end users can configure the parameters of these units and collect additional process values and diagnostic data, however, these units’ parameters settings can also be configured directly on the display and used as a stand-alone device without an IO-Link master.

Question 1

Product limits: How many DPs can fit on one master?

Accepted Answer

Depending on the orientation of the plug on the IO-Link master, it is possible that the converters cannot be screwed in directly next to each other. Then a master port has to be left free between them.

Two DPs can be mounted next to each other when oriented with one or more flat sides next to each other:

Mounting two DPs next to each other with their widest sides oriented the same way is not possible:

Fully threading the DP into the port is not possible in this case.

Question 2

What happens if communication is lost to a master and an IO-Link to output device is being used?

Accepted Answer

The last value provided for an output is held. This means that an analogue output on a DP will hold the last value or a switching output will stay “ON”. How can this be avoided?

With default settings the last value output from the DP would be held,
however you can set the "fail-safe" mode for IO-link communication to “reset value” (value of 1 in the configuration assembly) for any port, and this will cause the signal to drive to zero if communications are lost to the master. See example below:

In the PLC, this would be done in the configuration assembly for whatever port number the DP is connected to (port 6 in the example below with an AL1422 model IO-Link master).

Question 3

How are the DPs mounted?

Accepted Answer

If you do not wish to thread the DP directly to your master or sensor, the mounting clip E89208 can be used.

Question 4

Do the DP2302, DP2122 and DP2402 require a master to operate?

Accepted Answer

The DP2302, DP2122and DP2402 are IO-Link enabled devices. Using IO-Link, end users can configure the parameters of these units and collect additional process values and diagnostic data, however, these units’ parameters settings can also be configured directly on the display and used as a stand-alone device without an IO-Link master.

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FAQs about IO-Link signal converters