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FAQ00168 of Programmable Terminals FAQ

FAQ No. FAQ00168

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When multiple Programmable Terminals are connected to a Programmable Controller with 1:N NT Link communications and an error occurred in one of the Programmable Terminals, is it possible to detect that error from the Programmable Controller?


A Programmable Terminal's operating status is given in bit 15 of the Programmable Terminal Status Notify Bits. That flag can be monitored in the Programmable Controller in order to recognize when a Programmable Terminal error occurred, i.e., when the Programmable Terminal is not operating.