IDEC MICRO/I HG4G-CJT22 F-B Series User Manual page 276

1 Creating and Manipulating WindO/I-NV4 Project Data
4
Check the message and click Yes.
If there are no device addresses that correspond to the external device addresses used in the current
project data after changing the communication driver, the items set with those device addresses are blank.
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WindO/I-NV4 User's Manual