Hello, at first, what version from CCS object you using? Version of the object must match the ccs interface. Example: Object Version V2.2 is for CCS interface V1.10 This information you can find directly in OES What dou you mean with "no telegramm send or recv", how you chack this? WireShark, directly on CCS? If the object ends with DONE, than is correct that you have no error. Have you set this parameter in OES? If you set this peramet, you must programing this in TwinCat. A example from code, is exported from OES
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