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  • Users: techwizard
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  1. techwizard

    Reliability in Fieldbus system

    hi JL not only voting of TMR, the safety requirement is to hardwire the field instruments to the PLC subsystem. Triple redundant fiber for remote I/Os and DCs connectivity. That means the field instruments and FE are hardwired.
  2. techwizard

    Modbus TCP

    Modbus uses Ascii and Modbus RTU uses binary and they both are different.However both are master/Slave but cannot coexist on the same network because a network cannot have two masters

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