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ISO1176T和传统的485收发器区别

Other Parts Discussed in Thread: PROFIBUS, ISO1176T

  我们现在Profibus电路是VPC3+C和MAX3485EESA组成的,如果将MAX3485更换为ISO1176T除了隔离以外还有哪些优势呢?应该没有要求说明Profibus通讯必须使用ISO1176T类型的专用芯片吧?

  • 您好, ISOxx和传统的收发器区别主要在于它有隔离功能, 因为profibus的应用现场比较复杂, 传输距离也比较长,所以会出现由于地回路的电位差导致通信出问题, 使用带隔离的收发器就设计方便多了,否则的话,传统的收发器还得需要外加一片隔离器.