Hello, if you want to use it in OES, then you will need a peripheral for it. That is, somebody needs to create one for you if you don't know how to do it yourself (generally requires the Object Creation training, it's not super easy). Depending on what the terminals do, you may get away without a peripheral by creating the required %I and %Q variables in TwinCAT yourself and linking manually or with pragmas. But if you are using objects that require the signals of these terminals in their parameters, e.g. you want to use a BasMove and connect it to a digital input terminal, then you will need the peripheral. Otherwise your objects in the model tree will not work correctly in almost all cases. Is this the Lingchen terminal from Suzhou? I investigated those as a Beckhoff alternative before but decided against them at that time because the way they provided the ESI (EtherCAT slave information) was not really compatible with Nexeed peripherals. But judging from your screenshot it looks like you have a different ESI file, which would allow creating proper peripherals for it.
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