Address issues encountered during FF instrument replacement

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Issue of replacing spare instruments in the ff instrument monitoring system: How are instrument addresses assigned in the ff instrument system? On the forum, I saw some content stating that the address is assigned automatically by the system, and the detection function only needs to read the address and data. If Table A is used normally in testing, now test Table B. After replacing it with Table B, is the same address from Table A used? Another new address that hasn’t been used yet? Then, if table A is replaced back, will its address at this point be another address different from that of B, or will tables A and B always have the same address? ； This raises another question: if a new address is used, can it still be identified as the same testing location? Some FF instruments indicate that the system recognizes the DD information of the detection position configured within the instrument; therefore, no matter how many instruments are used, as long as the DD information of the detection position entered is correct, the system will recognize it directly. Is that so? Are there any other settings and ways to read it? The questions are a bit messy; experts, please make do and take a look.